What Is Ga2O3?

What Is Ga2O3?

2021-10-11
Green Earth
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It is universally acknowledged that Ga2O3 stands as Shenzhen Green Earth Opto-Electronic Co., Ltd's main and featured product. We have gained wide recognition and high appraises from all over the world for the product with our pro-environment adherence and strong dedication to sustainable development. Research and development and comprehensive market research have been thoroughly conducted before it is launched so that it highly meets the market demand.As our customers can directly benefit from every product they purchase, more and more our old friends have chosen to establish long-time cooperation with us. The spread of positive word-of-mouth in the industry also helps bring us more new customers. Currently, Green Earth is now widely recognized as the representative of high quality and strong practicality in the industry. We will continue to provide customers with high quality and cost-effective products and will not betray customer's great trust in us.We make ourselves understand customers' requirements to ensure that we deliver the satisfying Ga2O3 and suchlike products at Green Earth to meet or exceed customers' expectations with respect to price, MOQ, packaging and shipment method.
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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.
[LED Anti-proof] LED Advertising Light, LED Explosion-proof Lamp
[LED Anti-proof] LED Advertising Light, LED Explosion-proof Lamp
  Author :Green earth– LED Strip Lights manufacturersWith the popularity and use of the LED light, the problem of LED explosion-proof lights also came, and the reason for the damage of LED explosion-proof lamps will be told below.1. Electrostatic discharge eventElectrostatic discharge (ESD) damage is a relatively common transient overvoltage hazard in the manufacture, transportation and application of integration semiconductor devices, while LED lighting system must meet IEC61000-4-2 standards.“Human electrostatic discharge mode”8kV contact discharge to prevent the system from malfunction failure in electrostatic discharge.LEDPN nogrammetability will reduce or damage, and the internal failure of the LED chip caused by the ESD event discharge path, which may be just partial functional damage, and severe words will also cause long-term damage to the LED lamp.2. Transient overcurrent eventTransient overcurrent events are larger rated currents that flow through the LEDs over the LED technology data sheet, which may be due to direct production of large currents or indirectly from the voltage, such as transient lightning strikes, switching power supplies Overcurrent caused by an overvoltage caused by an overvoltage such as a state switch noise and a power grid fluctuation. These events are transient, the duration is very short, usually we call it a spike, such as“Current spike”,“Voltage spike”. The situation that causes transient overcurrent events also includes an LED to turn on a power source, or transient overcurrent when a charged plug is.Keywords: LED explosion-proof lamp
LED Street Lamp Manufacturers Teach You to Choose Product Effective Methods
LED Street Lamp Manufacturers Teach You to Choose Product Effective Methods
  Author :Green earth– LED Strip Lights manufacturersI believe that many purchases often encounter when purchasing the LED street lamp, I don't know how to choose a good street light. Today, Yangzhou Street lamp manufacturers teach you how to choose a suitable street light from the perspective of the manufacturer.First, LED light decay and light efficiencyNow the light effects of ordinary light sources are about 110 130LM / W. If we encounter higher efficiency our manufacturers, you can generally recommend that you don't choose, we recommend it in 1 watt / piece, too high, to actually use There is not much impact, don't blindly listen to how many watts can be achieved from those manufacturers, and there is not much difference in actual use. It is not as good as a torque of the rules. When you encounter power less than 1 watt /, you don't recommend you to use, because when it is less than 1 watt /, the light failure will be very serious, and the light decline will lead to a significant decline in the life of the entire service life, so many products Light of surface data and preliminary use, can't see it, just wait for a long time to find these drawbacks. So you need you have a pair of eyes to identify, and you can see the virtual eye.Second, luminous efficiencyThe higher the luminous efficiency, the better the light effect, the better the energy-saving effect, the energy consumption is lower, which will also be environmentally friendly.Third, the heat dissipation problem of LED street lightsTheoretically high-power LED life is around 30,000 to 50,000 hours, and the heat sink has a heat sink to make the service life, so try to choose a luminaire with a built-in radiator.Fourth, the self-weight of the LED street lightThe LED street lamp is not the better, the more it is, the more affected it. These have to see your specific requirements. With the development of technology, future LED luminaires will be like electronics, and the service life is growing.The above four points are also the four big points of the purchase of road lights. I believe that everyone should understand that the Yangzhou street lamp manufacturers said.
What Are the Best Touch Table Lamp for 2021?
What Are the Best Touch Table Lamp for 2021?
The introduction of touch table lampTouch tables are one of the most important parts of our lives. They can be used to entertain people and keep them entertained. There are many different types of touch tables, from small to large and even some with their own wooden frames. These touch tables can be used for home entertainment, in restaurants, in hotels, and other places of entertainment. Touch tables can also be used to add character to a room or just make it look bigger. You can use touch tables to add an extra layer of personalization to a room or just make it look more spacious.We all know that many people forget to clean their hands or even move their fingers in order to open the ball of the hand and press the lids together. A touch table lamp is not just an ordinary light fixture but also a decorative item that you can add to your home or office. There are several types of touch table lamp, some of which are simple and some which are elegant. Most of the touch table lamp designs come with various uses, such as stacking up objects and giving them a fun shape.Touchable technology is used in the living room and offices to enhance the experience of people. When using touch table lamp, it can be very helpful to have a good view of the person sitting in the room. If you are interested in this technology, then you should try it out for yourself. It is also useful to use it to decorate your home and your family.If you are considering buying a new or used touch table lamp, you should get one at a time. If you are looking for a cheap touch table lamp, you should choose one that has good light output and can handle all your needs. There are many other things that you can do in the same article but they all need to be considered as well. It is always best to buy a touch table lamp that has good light output and is efficient enough to use. The following article will show you how to make the best touch table lamp.Related popular brands of touch table lamp industryThis list of the best touch table lamp brands is designed to give you a comprehensive overview of what is happening in the touch table lamp industry. You can easily browse through all the touch table lamp brands by category and filter by brand name, price, colour, light weight, size, etc. This list will help you find the best touch table lamp that suits your needs. If you are looking for a touch table lamp that can work well for your daily living then this list is perfect for you.No one can tell us which brand of touch table lamp is the best. We have good experience in this field and we have worked in various companies to make sure that our products are available at the best possible price. All of our products are manufactured from quality materials and offer excellent performance. You can also find contact details and phone numbers on our website. So, if you are interested in buying touch table lamp then please feel free to contact us.Our focus on touch tables is based on how we are positioned to meet our customers' needs. Our technology has enabled us to create quality touch tables that are comfortable and safe to use. This allows us to offer our customers with great comfort and reliability. We know that every piece of our furniture is made from materials that will last for many years. If you need to have a touch table lamp for your home then our team of experts will be able to help you with this task.Many people are beginning to realize that their ideas about lighting are becoming outdated. But what if we can use technology to create something that makes our lives better? A lot of people think that it is only because of technology that we can make our life better. In fact, many people believe that there are some important aspects of lighting that are being overlooked by most people. So, it is best to get started on making your own lamps.The benefits of touch table lampIn many ways, it is easier to use and efficient than a more traditional style. You can save yourself from the day-to-day work of office furniture and your family by using touch tables instead of conventional furniture. And you can even get back to your desk if you need to work from home. But what about all the other common types of furniture that are still used today? There are so many different types of furniture that are available, so you will have to pick the one that suits your needs best.There are many types of touch tables, and what are the best touch tables? It is important to note that not all touch tables are created equal. You can find touch tables online by going to www.cottonpress.com and looking at reviews of touch tables online. It is important to note that not all touch tables are created equal. You can find touch tables online by going to www.cottonpress.com and looking at reviews of touch tables online. It is important to note that not all touch tables are created equal. You can find touch tables online by going to www.cottonpress.It is possible to use your smartphone or tablet to connect to your computer, watch movies and share photos online. There are many ways to connect to your computer, but we recommend that you take a look at these options first. When you have an idea of what it is you want to build then start by creating a small piece of furniture that you can easily edit and make in your home. You can also find some cheap materials that will make a beautiful table lamp for your garden.Some people use it to play games, while others use it to get their energy back into their day. We all have our lives in which we can work from home and our jobs are usually very busy. But what are the best touch table lamp? A good touch table lamp is designed to make your body feel more warm and comfortable, so that you can enjoy playing games without worrying about being cold. The light that shines on your hands is more natural and better looking than anything else on the room.The product instructions of touch table lampIf you have ever had to get out of your job as a manager or manage your company, you know how difficult it is to find the right way to go about finding the right solution. In order to make sure that you are found in the right place, we recommend using our experience with touch table lamp industry to ensure that we can do it for you. This will allow us to offer you better service than you would be able to from our competitors. You can even hire us to teach you how to use our technology.It is difficult to put together a complete guide on how to set up a touch table lamp, and it is easy to create mistakes when creating a project. However, there are some very common mistakes that people make when they have to use a touch table lamp. Here are some tips on how to avoid these mistakes and avoid them in the future. 1. Use an alternative lighting method that will work for you. This method is ideal for designers who want to build websites that can help them get their hands on the design.It is hard to put together a simple manual that will make your hands more precise and quicker to read. But there are a few things that you can do to help reduce your need for manual reading. A good touch table lamp is designed to take up less space in your desk. It can also provide more room for other people who work in the office. You can use it to help keep yourself and your office comfortable and be able to concentrate on the task at hand. It is easy to use and provides plenty of light.It is possible to make your own in-house design, but we need to do it ourselves. We have been working with other designers and engineers for many years and our research has shown that it is possible to make a beautiful design using materials that are environmentally friendly. So if you want to try out some of the materials, please read on and see if you can recommend one for you. If you can't find what you are looking for then contact us and we will help you find it for you.How to maintain touch table lampIn a time of fast progress, people are becoming more and more engaged with their social media platforms. People are starting to use the apps and websites that they have created to connect with each other. People are looking for ways to make their content more engaging and easy to access. It is good to be able to take a step back and look at what other people are doing in the world. We all need to work together to make our content more effective and provide better service to our customers. This is good for us because we can create something that makes people feel happy.In order to maintain the same level of quality and stability in your garden, it is important to keep your eyes and hands as well as your face covered. The best touch table lamp for 2021 is one that will provide you with an adjustable brightness that will help you find the best touch table lamp for your garden. You can choose from several different types of touch table lamp, so you can choose the one that suits your needs and preference. Also, make sure that the touch table lamp is suitable for your style and size.No one can predict the future, but there are some who are sure that it will happen. There are many things that can be done to keep people and their emotions in check. One of the best touch table lamp is a remote control. You can easily set up the light source to make it go off automatically when you press the button. This makes it easy to tell if the person is speaking or just talking to you. Another option is to connect the computer to the wall socket.Touchable touch screen lamps are becoming more and more popular in the marketplace. They are lightweight and flexible and you can adjust them to suit your own needs. With a touch screen lamp, you can have a beautiful view of the world from your smartphone or tablet. Touch screen lamps can also be used as pendant lights, so you can add them to your home. You can use touch screen lamps for many different purposes, such as reading, writing, etc. Touch screen lamps are usually much brighter than traditional bulbs and they have better durability. It is easy to see how they work.
[Solar LED Street Light] Should Pay Attention to Wind, Waterproof and Defense When Installing
[Solar LED Street Light] Should Pay Attention to Wind, Waterproof and Defense When Installing
  Author :Green earth– LED Strip Lights manufacturersSolar LED street lamp system windshieldIn the solar LED street lamp system, the problem that needs very much attention to the structure is the wind design. The wind is mainly divided into two major blocks, one for the windshield of the battery assembly bracket, and the second is the windshield of the light lever. The following is analyzed in the above two pieces.(1) Solar LED street light solar battery assembly bracket windshieldAccording to the technical parameters of the solar LED street lamp manufacturers, the solar cell module can withstand to 2700Pa. If the wind is selected to be 27m / s (equivalent to ten typhoon), depending on the non-stick fluid mechanics, the battery pack is only 365Pa. Therefore, the component itself can completely withstand the wind speed of 27 m / s and not damaged. Therefore, the key to the design is to consider the connection of the battery pack bracket and the solar LED street light pole.The connection design of the battery component bracket and the solar lamp pole is fixedly connected using a bolt bar.(2) Solar LED street lamp pole windshieldThe parameters of the solar LED street light are as follows: Battery board inclination A = 16o light pole height = 5M design selection Solar LED streetlight lever bottom weld widthδ= 4mm solar LED street light pole bottom outer diameter = 168mmThe weld is on the surface of the lamp to destroy the surface. Solar LED Street Light Bar Destructive Finding Torque W Calculation Point P to the Battery Board Fidel Mount F Wide Board F Wide PQ = [5000 (168 6) / TAN16O]×SIN16O = 1545mm = 1.545m. Therefore, the role of the wind load in the sneakers of the solar LED street light pole M = f×1.545.The maximum allowable wind speed according to the design of 27M / s, 2×The basic load of the 30W double-lamp head solar LED street lamp is 730N. Consider 1.3 safety factor, f = 1.3×730 = 949n. So M = f×1.545 = 949×1.545 = 1466N.m. Depending on the derivation of mathematics, the resistance of the circular designs surface W =π×(3R2δ 3Rδ2δ3). In the above formula, R is the inner diameter of the ring,δIt is a ring width. Destructive surface resistance W =π×(3R2δ 3Rδ2δ3) =π×(3×842×4 3×84×42 43) = 88768mm3 = 88.768×10-6 m3 The stress caused by the moment of wind load in the destructive surface = m / w = 1466 / (88.768×10-6) = 16.5×106PA = 16.5 MPA Anti-theft design of solar LED street lamp systemIt should also pay attention to anti-theft work, many times, because of the negligence of construction, there is no effective anti-theft, leading to the solar LED street light storage battery, solar LED street light battery board, but not only affects normal lighting, but also caused Unnecessary property losses. At present, it is a potent anti-theft measures in the current engineering case, solar LED stream battery, solar LED street light storage is a effective anti-theft measures. Theft of the battery board is mainly due to the low or climb around the solar LED street light pole, so the height of the solar LED street light pole is preferably 5m or more.Waterproof design of solar LED street lamp systemThe waterproof of the solar LED street light controller, most of the controller is installed in the lampshade, and the solar LED street light storage box is generally not invested. However, in the actual engineering case, some because of improper installation, will follow the controller terminal due to rainwater Wiring flow into the controller causes short circuit. Therefore, it should be noted when the controller terminal internal cable is bent into a U-shaped and solid, exposed to the external cable is also fixed as a U-shaped, so that the rain can not be short-circuited, and can be inside and outside. Waterproof glue is applied at the line interface to waterproof.YWX [Excellent Promotion Screen 18013196696]
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