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Green Earth's Pendant Lighting Manufacters

Green Earth's Pendant Lighting Manufacters

2021-10-11
Green Earth
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With ' Quality First' principle, during the production of Pendant Lighting manufacters, Shenzhen Green Earth Opto-Electronic Co., Ltd has cultivated workers' awareness of strict quality control and we formed an enterprise culture centering on high quality. We have established standards for the production process and operational process, carrying out quality tracking, monitoring and adjusting during each manufacturing process.Green Earth has its name widely spread at home and abroad. The products under the brand are fabricated under strict quality control, and their quality is stable enough to maximize customers' experience. Customers benefit from the products and leave positive comments on our official website. It goes like this, 'After I used the product, I benefit a lot from it. I have recommended it to my friends and they also recognize its value...'At Green Earth, we know well the importance of customer service. Comments and complaints are an important resource for us improving the performance of Pendant Lighting manufacters. So we continuously ask for customer feedback using some tools and software.
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The trend of intelligent office space under the epidemic
The trend of intelligent office space under the epidemic
In 2020, offices around the world have experienced a sharp decline and recovery. It has been more than half a year since the office building was closed during the period of strict prevention and strict control, to the gradual opening, and then to the full restoration of normal offices.  No one would have thought of the rapid emergence of this global epidemic, including organizations and enterprises that are implementing and planning to implement smart office space solutions.  This sudden change not only confirms the inevitable arrival of smart office, but also reshapes employers’perception of office space-when employees work from home and on duty, their output efficiency and work quality are still guaranteed, even Promoted. According to the judgment made by Gensler in the 2019 US Office Space Survey Report: Spaces that support multiple "models" are more likely to create wonderful experiences. Having a diversified workplace can better improve employee participation and performance. It is necessary to adapt the limited space to meet the rapid switching and use of multiple working methods, so that office comfort and work performance can be improved simultaneously.  In this regard, using an intelligent building system to carry out intelligent customized design, allowing people in the space to customize and combine space elements to support different work scene modes will be an effective solution. In office spaces, there are usually several high-frequency use spaces such as co-working spaces, independent offices, reception rooms, and meeting rooms. These spaces already have very mature application schemes for smart office, which can effectively enrich the office scene and realize the rapid switching of scenes. For example, in a joint office space, the detailed parameters of the lighting in the place can be adjusted through APP, and the cool-toned lighting atmosphere used in the daytime office can be adjusted to the color or warm-toned atmosphere required for night activities, so that the space meets the needs of instantaneous agility. When a customer visits and needs to display the project in the conference room and play related video materials, the scene can be switched. Turn on the speech mode through the smart panel or AI voice, lower the roller blinds by the floor-to-ceiling windows, and turn on the screen projection and other equipment to reduce the illuminance of the lights in the venue and focus everyone's attention. Through the management of all the equipment incorporated into the intelligent system in the place, the status of lighting, curtains, air conditioning, audio and video and other equipment can be adjusted to realize various scenes in a space. And employees can add frequently used scenes to the smart panel, or customize the combined device status on the mobile APP to develop more niche new scenes, so that the environment can change quickly and become more dynamic.  
Modern office lighting application solutions
Modern office lighting application solutions
In the development and construction of modern cities, office space, as one of the most frequently used places in people's daily production and work, has important and extensive application requirements. At the same time, companies are paying more and more attention to the diverse office needs of employees, and innovative and user-friendly office space has increasingly become an important direction for construction and transformation. Common problems of office lighting Traditional office space lighting is mainly based on functional lighting, which has high illuminance, high color temperature, old and single function of equipment, and large energy consumption, which greatly affect the working status and efficiency of employees, and affect the overall image, operating costs and efficiency of the company. Has a serious impact. Modern office lighting solutions The interior space of modern office buildings generally consists of office space, public space, service space and other ancillary facilities. Different work scenes have different requirements for light. Under the condition of meeting the architectural lighting design standards, it can be based on the corporate office culture and space. Style personalized lighting design to create a comfortable and comfortable office light environment for employees. Open office area: There is a lot of people here, and it is a place where staff work for a long time. It mainly meets the needs of work lighting and the comfort of work lighting. It is recommended to use linear lights for large-area lighting; it is recommended to use guide rails in aisles The grille spotlight is used as the basic lighting, and the specific position of the lamp can be adjusted according to the demand and actual situation. Unit office: It is recommended to use hoisting linear lights for accent lighting on the desk top, embedded downlights for basic ambient lighting, and ceilings with light strips for ambient lighting to create a comfortable office environment. Conference room: It is an important area for customer negotiations and corporate meetings. Generally speaking, the focus of lighting design is to meet functionality, with uniform illumination. First of all, it is recommended to use downlights to meet the basic illuminance requirements of the space, and at the same time to make the light in the space softer through the form of diffuse reflection. Secondly, it is recommended to use a lamp panel, which can not only meet the basic lighting, but also increase the illuminance of the desk in the meeting room to meet office needs.  
What Is CNC Machining? An Overview of the CNC Machining Process
What Is CNC Machining? An Overview of the CNC Machining Process
  Computer Numerical Control (CNC) machining is a manufacturing process in which pre-programmed computer software dictates the movement of factory tools and machinery. The process can be used to control a range of complex machinery, from grinders and lathes to mills and CNC routers. With CNC machining, three-dimensional cutting tasks can be accomplished in a single set of prompts. The CNC process runs in contrast to — and thereby supersedes — the limitations of manual control, where live operators are needed to prompt and guide the commands of machining tools via levers, buttons and wheels. To the onlooker, a CNC system might resemble a regular set of computer components, but the software programs and consoles employed in CNC machining distinguish it from all other forms of computation. How Does CNC Machining Work? When a CNC system is activated, the desired cuts are programmed into the software and dictated to corresponding tools and machinery, which carry out the dimensional tasks as specified, much like a robot. In CNC programming, the code generator within the numerical system will often assume mechanisms are flawless, despite the possibility of errors, which is greater whenever a CNC machine is directed to cut in more than one direction simultaneously. The placement of a tool in a numerical control system is outlined by a series of inputs known as the part program.   With a numerical control machine, programs are inputted via punch cards. By contrast, the programs for CNC machines are fed to computers through small keyboards. CNC programming is retained in a computer’s memory. The code itself is written and edited by programmers. Therefore, CNC systems offer far more expansive computational capacity. Best of all, CNC systems are by no means static since newer prompts can be added to pre-existing programs through revised code.  
A UNIQUE STAGING OF ART
A UNIQUE STAGING OF ART
The city of Munich showcased the Propylaeum this winter with a powerful LED lighting system from LEDVANCE. For the light action "Kunstareal verbindet", LEDVANCE provided the lighting solution for the in-stallation in the Propylaeum. Thanks to LEDVANCE as a strong partner, it was possible to create a robust, high-intensity, wind and weather proof lighting solution suitable for continuous use. The greatest challenge of the project was to let the Propylaeum, which is symbolic for Munich, shine in a new light. The original design of the architect was to be emphasized by the lighting design integrated into the existing architecture. The light installation had to meet the strict static and urban planning requirements of the landmark, which is under monumental protection. In order to meet the enormous dimensions of the light installation and architecture, a particularly powerful lighting system had to be found. A wind and weather proof IP65 certified lighting solu-tion was needed that is suitable for continuous use and at the same time produces homogeneous illumination in terms of color temperature and luminosity. The lighting solutions from LEDVANCE were particularly impressive due to their high luminosity and homogeneity combined with a low installation profile. Thanks to their high-quality standards, the luminaires are also weather proof and ideally suited for continuous outdoor use. Due to the constant color temperature, a consistent lighting pattern could be created. At the same time, the low energy consumption of the lighting installation enables an efficient illumination of the Propy-laeum. By controlling the LED STRIP with a remote control, the lighting situation could be easily adjusted even after the installation of the steel frame. A seamless transition between architecture and lighting was created - a fusion of light and architecture was achieved. Luminaires used in the project generate over one million lumens of luminosity to properly illuminate the monumental size of the building. “There are times when art and culture need more space than just an idea,“ emphasizes Yul Zeser, artist of the art installation in the Propylaeum. To meet all the demands of the lighting installation of continuous operation and outdoor use in winter weather and low temperatures, the ECO HIGH POWER FLOODLIGHT 500W and LED STRIP VALUE-500 RGB PROTECTED from LEDVANCE were chosen. The light sources from LEDVANCE were compelling here both in their performance during daily operation and in their long operating time as well as their wind and weather resistance.
End of Halogen Light Bulbs Spells Brighter and Cleaner Future
End of Halogen Light Bulbs Spells Brighter and Cleaner Future
Halogen light bulbs will be banned from September 2021 with fluorescent light bulbs to follow, cutting emissions and saving consumers on their energy bills. ●Halogen light bulbs to be banned from this September – with fluorescent light bulbs to follow suit ●shift to LED bulbs will cut 1.26 million tonnes of CO2 – the equivalent of removing over half a million cars from UK roads ●new rules part of tighter energy efficiency standards for electrical appliances as the UK builds back greener, helping save British consumers £75 a year on their energy bills The government has announced plans today (Wednesday 9 June) to end the sale of halogen light bulbs from this September, as part of the UK’s wider efforts to tackle climate change. Legislation being brought forward this month will also include the removal of fluorescent lights from shelves from September 2023. Currently, around 2 thirds of bulbs sold in Britain are LED lights, making a considerable impact in improving the energy efficiency of the country’s buildings. They last 5 times longer than traditional halogen lightbulbs and produce the same amount of light – but use up to 80% less power. The UK began phasing out the sale of higher-energy halogen lightbulbs in 2018. The new legislation would mean retailers will no longer be able to sell the majority of halogen bulbs for general household use in the UK from 1 September. To help people make the switch, ministers are also announcing that all light bulbs will start to feature new energy efficiency advice via ‘rescaled’ energy labels on their boxes. The labels will simplify the way energy efficiency is displayed on a new scale from A-G, doing away with the A+, A++ or A+++ ratings. The new labels will raise the bar for each class, meaning very few bulbs will now be classified as A, helping consumers choose the most environmentally friendly bulbs. This measure is expected to mean that LED light bulbs will account for 85% of all bulbs sold by 2030. In addition, the government also plans to start phasing out the sale of high-energy fluorescent lightbulbs, with a view to bringing an end to their sale from September 2023. Taken together, these new rules will mark a significant shift to more energy efficient and longer lasting LEDs and will stop 1.26 million tonnes of carbon being emitted every year - the equivalent of removing over half a million cars from the UK’s roads. The move is part of a package of energy efficiency improvements to electrical appliances, which will save consumers an average of £75 a year on energy bills. Energy Minister, Anne-Marie Trevelyan, said: We’re phasing out old inefficient halogen bulbs for good, so we can move more quickly to longer lasting LED bulbs, meaning less waste and a brighter and cleaner future for the UK. By helping ensure electrical appliances use less energy but perform just as well, we’re saving households money on their bills and helping tackle climate change. Today’s plans also include a ban from September on the sale of lighting fixtures with fixed bulbs that can’t be replaced – meaning the fixtures have to be thrown away. Fixtures such as these account for 100,000 tonnes of electrical waste every year – out of a total 1.5 million tonnes of electrical waste each year. Minister for Climate Change, Lord Martin Callanan, said: Flicking the off-switch on energy inefficient light bulbs is a simple way that households can save money at the same time as saving the planet. Phasing out halogen bulbs in favour of LED alternatives that last longer, are just as bright and cheaper to run, is another way that we are helping tackle climate change. Chief Executive of Signify UK, which owns Philips lighting, Stephen Rouatt, said: We welcome the UK government’s next step in the transition towards more sustainable lighting products. Using energy-efficient LED equivalents for halogen and fluorescent lighting on an even broader scale will significantly help the UK on its journey to decarbonisation, as well as lowering the annual electricity bills for consumers. Overall, the government’s package of energy efficiency improvements will also cut 8 million tonnes of carbon emissions in 2021 by reducing the amount of energy products consume over their life-time – the equivalent of removing all emissions from Birmingham and Leeds each year.
Bright Idea: New LEDs Can Detect Off Food And Lethal Gases
Bright Idea: New LEDs Can Detect Off Food And Lethal Gases
New LED technology has potential to benefit firefighters, miners, the military, plumbers and households.(Source:University of Melbourne) Your smart device could soon be even smarter with a new infrared light emitting diode (LED) that is ‘tuneable’ to different wavelengths of light – it could enable your fridge to tell you when your food is going off and your phone to tell you if that Gucci purse is real. The technology has been developed by the University of Melbourne, the Lawrence Berkeley National Laboratory, the University of California, Berkeley, and the Australian Research Council Centre of Excellence for Transformative Meta-Optical Systems (TMOS). They have come up with a device that could identify a suite of gases, potentially including lethal ones, improving the safety of firefighters, miners, the military, and your local plumber. The work appeared in the journal, Nature. Infrared (IR) spectrometers are common laboratory equipment that can identify different materials by analysing their infrared signatures, which is invisible to the human eye. Just like an AM radio can be tuned to different frequencies of radio wave, IR spectrometers can be tuned to different wavelengths, giving a broad-spectrum analysis of a gas sample. However, these machines are bulky and expensive and not usually practical to take out of the laboratory and into the field. “Our new technology bonds a thin layer of black phosphorus crystals to a flexible, plastic-like substrate, allowing it to be bent in ways that cause the black phosphorus to emit light of different wavelengths essentially creating a tuneable infrared LED that allows for the detection of multiple materials,” University of Melbourne Professor Kenneth Crozier said. “This technology could fit inside smartphones and become part of everyday use.”For example, the bacteria found in meat release various gases as they multiply. The presence of these gases is a good indication that the meat is spoiling and is no longer fit for consumption.“The device placed inside a fridge could send a notification that meat is going off. When pointed at a handbag, it could reveal whether the bag is made of real leather or a cheaper substitute,” said Professor Crozier, who is also the Deputy Director of TMOS.Current materials that are used for IR photodetectors and light emitting devices can be difficult to manufacture, in large part due to the need for multiple layers of perfectly linked crystals. This new black phosphorus technology requires just one layer allowing the device to be flexible, giving it unique properties when bent.“The shift in black phosphorus' emission wavelength with bending is really quite dramatic, enabling the LED to be tuned across the mid-infrared,” said Professor Ali Javey, from the University of California at Berkeley, whose group led the work.Importantly, the device could make the work of firefighters, miners and military safer, allowing them to identify potentially lethal gases from safe distances as the ultra-thin, ultra-light devices can be placed on small drones. Flying such a drone over a building fire could tell firefighters what dangers they face and equipment they’ll need.The low-cost technology could also make its way into devices for use by plumbers and building managers.“Our IR photo detectors could be integrated into a camera so that we could look at our phone screen and ‘see’ gas leaks or emissions and be able to determine what kind of gas it is,” Professor Crozier said.
Gallium Oxide White LED Prospects
Gallium Oxide White LED Prospects
Saga University in Japan has reported work towards white light-emitting diodes (WLEDs) based on rare-earth (RE)-doped gallium oxide (Ga2O3) [Yafei Huang et al, Appl. Phys. Lett., v119, p062107, 2021]. The researchers adopted a vertical integration strategy with Ga2O3 layers doped with thulium (Tm), europium (Eu) and erbium (Er) grown on top of each other. The team comments that “films grown by lateral integration are deposited side-by-side, while the co-doping of multiple rare earth elements into the same host will unavoidably degrade the crystal quality and, thus, induce undesirable threshold voltage and luminous efficiency.” The vertical strategy leads to more compact devices without compromising crystal quality. The team adds: “On the other hand, compared with phosphor-assisted WLEDs, direct white light emissions are achieved from single-material-based LEDs in this work without using additional red, blue or green phosphors, which can greatly reduce the energy re-absorption effect between different phosphors.” Such energy re-absorption would naturally impact power efficiency. The researchers also see the phosphor-free approach based on single-material-based WLEDs with direct primary color mixing as more conducive to displays based on smaller-pixel micro-LEDs. Although rare-earth doping has been tried in gallium nitride and zinc oxide devices, there are problems such as needing high voltages (~100V) or poor color balance due to spectral gaps. The Saga team sees β-Ga2O3 as “an ideal host for rare-earth ions benefiting from its ultrawide bandgap (4.9eV), which is advantageous to improve the thermal stability and luminous ability of rare-earth dopants at room temperature”. According to the researchers, at present, “there are no reports available related to full-color (white) LEDs based on rare-earth-doped Ga2O3.” The doped Ga2O3 layers were deposited on p-type gallium arsenide, p-GaAs (111), using alternate-target pulsed laser deposition (PLD) at 500°C. The Ga2O3 targets were variously doped with rare-earth oxides: 1wt.% Tm2O3, 1wt.% Eu2O3 and 5wt.% Er2O3. The laser light came from a krypton fluoride (KrF) excimer laser emitting deep-ultraviolet light at 248nm wavelength. The PLD was carried out in an oxygen atmosphere at 0.1Pa pressure. The samples consisted of 150-periods of the sequence of the three types of Ga2O3 doping (Figure 1). The growth process lasted 150 minutes. Material analysis suggested that the atomic concentrations for the doped layers were 0.3% Tm, 0.5% Eu and 2.3% Er. Figure 1: Schematic structure of LED-A based on Ga2O3:(Tm+Eu+Er)/GaAs heterojunction. The LEDs featured an indium tin oxide (ITO) transparent conductor n-electrode and gold (Au) p-electrode. The ITO was applied with direct-current sputtering; the gold with electon-beam evaporation. Atomic force microscopy showed a sample surface “filled with uniformly distributed grain-like structures” with a root-mean-square roughness of 10nm. When subjected to a forward voltage of more than 8.8V, the current begins to increase rapidly. The researchers also note that the electroluminescence (EL) is only observed under forward bias, suggesting that “simultaneously injected electrons and holes are indispensable for the EL”. The researchers associate the emitted light with 4f transitions from the Eu3+, Er3+, and Tm3+ ions (Figure 2). Figure 2: (a) Current-voltage characteristics curve of LED-A. Inset: semi-log characteristics and digital photograph of LED-A at 70mA. (b) EL spectra under different operating currents. (c) EL intensities of emissions at 475, 529, and 615nm as function of injection current. (d) CIE chromaticity coordinates under different currents.   The various peaks associated with the different ions were: 461 and 475nm with Tm3+; 529, 550, and 656nm with Er3+; 590, 615, and 712nm with Eu3+. Although the emissions somewhat overlap, the Tm ones are mainly in the blue range, Er green, and Eu red. The combination gives white light. The researchers explain: “Due to the existence of oxygen vacancy defects in the film, the simultaneous red, green, and blue emissions are supposed to be triggered by the defect-assisted energy transfer from the Ga2O3 host to RE3+ (Eu3+, Er3+, and Tm3+) ions.” On the basis of previous reports, the researchers expect the emission to be relatively independent of the temperature environment since the complete outer 5s and 5p orbitals shield the 4f shell from such influence. The positions of the peaks were found to vary little with changing current injection. However, the strength of the emissions did vary, with the balance shifting from red to green and blue as the current increases. The color content of the main device reported, LED-A, shifted from pink to white with injections from 40mA to 80mA. The correlated color temperature (CCT) varied from 2370K to 7592K, respectively, a shift from a warm to cold tone. The team reports: “For instance, the emitted light at 55mA locates at a warm-white point with CIE coordinates of (0.3739, 0.3410) and CCT of 3926K, which meets the requirements for indoor lighting applications.” The researchers also see 65mA as providing “superior” CIE coordinates, (0.3329, 0.3335), but 5479K CCT, suitable for indoor/outdoor cold-white illumination. Table 1: Thicknesses of doped Ga2O3 layers. The color balance was also varied in hardware, with the researchers producing four other device structures with different layer thicknesses of the various components (Table 1). These resulted in different color balance behavior (Figure 3). Figure 3: CIE chromaticity diagrams for (a) LED-a, (b) LED-b, (c) LED-c, and (d) LED-d under different operating currents.     The author Mike Cooke is a freelance technology journalist who has worked in the semiconductor and advanced technology sectors since 1997.  
Retailers Employing NICHIA LED Technology Are Ahead Of The Game
Retailers Employing NICHIA LED Technology Are Ahead Of The Game
After completing a successful pilot project, German retailer EDEKA equips its latest store entirely with NICHIA technology Tokushima, Japan – 3 August 2021: LED manufacturer NICHIA is a technology leader in highly efficient human centric lighting and the replication of natural light. Its innovative LED technologies are increasingly being used in retail to push the shopping experience to the next level. The most recent project is an EDEKA store in Wiesbaden-Sonnenberg, Germany, which opened its doors in May and is equipped with a lighting solution entirely based on NICHIA technology. The owners of the store engaged Prof. Dipl.-Phys. Werner Lorke and his interdisciplinary team of experts to plan and implement the project. As part of his consulting work with iO Interdisziplinäre Objekte, the physicist focuses on product and exhibition design and brings together the fields of architecture, technology, and art. He was tasked with developing and employing a lighting concept that presents the store’s merchandise in the best possible way and creates a positive shopping experience for the customer. To do this, he selected NICHIA's ‘Light so Good' technologies, which significantly enhance the quality of light: 2-in-1 tunable white, Optisolis, and Vitasolis.For the Wiesbaden-Sonnenberg project, Lorke drew, among other things, on the experience he had already gained over several years with another EDEKA branch in Wiesbaden. Above average sales figures in this store prove that the influence of light on people is enormous. Thus, lighting generally represents a great opportunity for retailers. "We are proud to say that all our activities here, in terms of introducing new illumination, have more than paid for themselves within a few months," he emphasizes. "Based on this experience, our advice to retailers, in general, is to look at lighting as a sales tool rather than as an expense."In the confectionery department, for example, a solution with adjustable color temperature has proven successful. Thanks to 2-in-1 tunable white LED and COB, it is possible to create good contrast between the merchandise on display and the aisles, as well as to install dynamic lighting in which the color temperature changes throughout the day. Optisolis products are ideal for illuminating goods such as fruit and vegetables. They can be used to produce a light spectrum that comes closest to that of the sun, while at the same time UV emission is essentially non-existent. As a result, it has a positive effect on perishable goods while fruit and vegetables shine in the best possible light. Vitasolis provides brilliant white light and a wide wavelength spectrum for pleasant illumination. A strong cyan component compared to other products has a positive effect on the human circadian rhythm. Aisles illuminated with Vitasolis in combination with Optisolis product provide shoppers with an image that is inspiring and very pleasant – a solution ideally suited, for example, in the dairy section. High CRI Optisolis illuminating the dairy products presents the merchandise more naturally while the natural white light coming from Vitasolis is suitable for illuminating the aisle. Lorke applies Vitasolis for two reasons: one, it allows for a good contrast between space and merchandise thanks to its broad spectrum and low contents of yellow spectrum. Two, its quality of light is extremely easy on the eye. As such, the technology also perfectly meets the needs of any counter areas. Here, the comfortable lighting makes waiting times more pleasant for visitors. A total of around 500 luminaires from all three 'Light so Good' technologies have been installed at EDEKA in Wiesbaden-Sonnenberg."Ultimately, each product group in the store requires its own lighting concept," states Lorke. "The secret lies in the optimal mix of color temperature, color spectrum, and contrast. At the moment, I don't see any alternative on the market to NICHIA products for achieving such a high quality of light as we have managed to create here."Note: Vitasolis and Optisolis are trademarks owned by NICHIA.
Scientists Develop Efficient GaN-based Green LEDs
Scientists Develop Efficient GaN-based Green LEDs
A research team led by Shengjun Zhou at Wuhan University has reported developing efficient GaN-based green LEDs on sapphire substrate. They proposed a hybrid nucleation layer consisting of sputtered AlN and mid-temperature GaN components to boost quantum efficiency of GaN-based green LEDs.The team says the hybrid nucleation layer provides a promising approach for the pursuit of efficient III-nitride emitters in the green-to-amber region.Currently, the development of efficient III-nitride emitters in the full visible range is very attractive. The integration of multicolour III-nitride emitters can enable efficient and precise management of the mixing spectra to realize high-resolution displays and various smart lighting applications. However, owing to the poor efficiency of III-nitride emitters in the green-to-amber region, these promising applications have been largely delayed.The researchers have fabricated high-efficiency InGaN/GaN green LEDs on sapphire substrate by using the novel hybrid nucleation layer. A stacking fault band structure was generated at the interface of hybrid nucleation layer and GaN, which facilitated the misfit stress compensation. Benefiting from the early misfit stress relaxation, they achieved reduced dislocation density and residual stress in the green LEDs. An efficiency improvement of ~16 percent was demonstrated in the mass production by using the hybrid nucleation layer. This gain is attributed to the increased localisation depth and spatial overlapping of the electron and hole wave functions.‘Toward efficient long-wavelength III-nitride emitters using a hybrid nucleation layer' by Bin Tang et al, Optics Express, 29(17), 2021 WHU team boost quantum efficiency using hybrid nucleation layer
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