What is gallium nitride? Gallium nitride is a wide-bandgap composite semiconductor material. According to the third party's calculation, after using GaN devices, the standard mobile phone charger can reduce weight by up to 40% or output more power under the same size conditions. It applies to consumer, industrial, automotive, and other electronic products. The target applications of this series include the built-in power supply of consumer electronic products, such as chargers, PC external power adapters, LED lighting drivers, televisions, and other household appliances.
Application prospect of gallium nitride For GaN materials, the density of heteroepitaxial defects is quite high because the single substrate crystal has not been solved for a long time, but the device level has been practical. In 1994, Niya Chemical made 1200mcd LED; in 1995, it made Zcd blue light (450nmLED) and green light 12cd (520nmLED); In 1998, Japan formulated a seven-year plan to develop LEDs using wide band gap nitride materials. The goal is to develop high-energy ultraviolet LEDs sealed in fluorescent tubes and emitting white light by 2005. The power consumption of this white LED is only 1/8 of that of incandescent lamps and 1/2 of that of fluorescent lamps, and its life is 50-100 times that of traditional fluorescent lamps. This proves that the development of GaN materials has been quite successful and has entered the practical stage. The generation of InGaN system alloys, InGaN/AlGaN double junction LED, InGaN single quantum well LED, InGaN multiple quantum well LED, etc. have been developed successfully. InGaNSQWLED6cd high-brightness pure green tea and 2cd high-brightness blue LEDs have been produced. In the future, it can be achieved by combining with AlGaP and AlGaAs series red LEDs to form a bright full-color display. In this way, the white light source mixed with three primary colors also opens up new application fields, and the era characterized by high reliability and long-life LED will come. LEDs will replace fluorescent lamps and light bulbs. LED will become the leading product. GaN transistors will develop rapidly with material growth and device technology and become a new generation of high-temperature frequency and high-power devices.
Disadvantages and problems of gallium nitride On the one hand, in theory, due to its energy band structure, the effective mass of the carrier is large, and the transport property is poor, so the low electric field mobility is low, and the high-frequency performance is poor. On the other hand, GaN single crystals grown by heteroepitaxy (using sapphire and SiC as substrates) are not very satisfactory (which hinders the development of GaN devices). For example, the dislocation density reaches 108~1010/cm2 (although the crystal structure of sapphire and SiC is similar to GaN, there are still relatively large lattice mismatch and thermal mismatch); The background carrier (electron) concentration of undoped GaN at room temperature is as high as 1017cm-3 (possibly related to N vacancy, substitutional Si, substitutional O, etc.), and shows n-type conductivity; Although it is easy to achieve n-type doping (doping Si can obtain n-type GaN with electron concentration of 1015~1020/cm3 and room temperature mobility>300 cm2/V.s), the p-type doping level is too low (mainly doped with Mg), the resulting hole concentration is only 1017~1018/cm3, mobility<10 cm2/V.s, and the doping efficiency is only 0.1%~1% (possibly due to the compensation of H and the high self-ionization energy of Mg).
Price of gallium nitride Gallium nitride particle size and purity will affect the product's price, and the purchase volume can also affect the cost of gallium nitride. A large amount of large amount will be lower. The price of gallium nitride can be found on our company's official website.
Gallium nitride supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including gallium nitride, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective gallium nitride, you are welcome tocontact usor inquire at any time.
