GAN ON SAPPHIRE

Brief Introduction of GaN

GaN is the major material used for blue-light/green-light LED due to its ability to combine electrical parts and LED optical parts, increasing LED product efficiency.

The GaN-based LEDs grown on the sapphire substrate have current transport along the lateral direction due to the insulating nature of the substrate. In addition, the finite resistance of the n-type GaN buffer layer causes the p–n junction current to be nonuniform and crowds near the edge of the contact.

The most frequently chosen crystallographic planes have been the R-plane, C-plane, and A-plane of sapphire. The tremendous mismatch between the lattices of GaN and sapphires can be partly overcome by the use of thin buffer layers of AlN or GaN. In spite of the lattice-matching problem, many useful optoelectronic and electronic devices can be made.

Characteristics and Applications of GaN

GaN is the third-generation semiconductor material after silicon and gallium arsenide. Its wide-bandgap characteristics make that GaN is an ideal material for blue light output. In addition, GaN also has a small dielectric constant, excellent thermal conductivity and thermal stability, which can meet the requirements of high frequency, high temperature, high pressure and high power applications.

These properties make GaN in aerospace, satellite communications, storage display, new type Light source and nuclear energy development have a wide range of application prospects. However, the bottleneck that once limited the application of GaN was the growth process of GaN, and the key to the growth process was the choice of substrate materials.

Cryscore GaN on Sapphire

Although there is a large lattice fit between the sapphire crystal and the GaN crystal, the crystal structures of the two are the same, and the sapphire still maintains stable chemical properties at high temperatures. In addition, for its excellent heat dissipation performance, sapphire wafer can be used as GaN Ideal substrate material for growth processes. Growing GaN on a sapphire substrate is easy to obtain large-size epitaxial wafers, and the price is relatively cheap.

With the development and improvement of molecular beam epitaxy and chemical vapor deposition growth technology, the quality of epitaxially growing GaN crystals on sapphire is getting higher and higher.

If you are interested in our products, contact us now to get more info about the price of sapphire waferand sapphire substrate.

CRYSCORE OPTOELECTRONIC LIMITED has been a professional manufacturer specialized in high-quality sapphire wafers and sapphire opticswindows since 2008.

Other supplier products

	SAPPHIRE WAFERS / SAPPHIRE SUBSTRATES	SAPPHIRE WAFERS / SAPPHIRE SUBSTRATES Due to the less mismatched lattice and stable chemical and physical properties, sapphire(Al2O3) wafer is the ...
	LED SUBSTRATES	LED remains the dominant sapphire application. Sapphire substrates are ideal for use in LED applications due to high-temperature resistance, high s...
	SAPPHIRE WAFERS / SAPPHIRE SUBSTRATES	Due to the less mismatched lattice and stable chemical and physical properties, sapphire(Al2O3) wafer is the popular substrates for III-V nitrides,...
	SAPPHIRE WINDOWS	SAPPHIRE WINDOWS Sapphire has a wide transmission range, spanning the three wavelength bands of ultraviolet, visible light and infrared and has hi...
	STANDARD SAPPHIRE WAFERS (C-PLANE)	CRYSCORE can offer Epi-Ready grade sapphire wafer with a very low surface roughness in complete orientation options. C-plane(0001) sapphire wafer...

供应产品

Same products

	Fresh Young Coconut	卖方: Song Nam ITD Co., Ltd	Fresh Young Coconut is an organic fresh fruit and whole year round in Vietnam. Our fresh young co...
	Looking for Vietnamese green seedless lime exporter	卖方: Song Nam ITD Co., Ltd	Song Nam is one of the best exporter of green seedless lime in Vietnam. With the long term cooper...
	Song Nam export Vietnamese dragon fruit	卖方: Song Nam ITD Co., Ltd	Song Nam ITD has grown up from dragon fruit farmer families, so we understand all procedures from...
	匈牙利-自增压液氮罐-液氮容器价格	卖方: 河南天之道生物科技有限公司	液氮作为现代科研与工业领域的关键冷却介质，其存储与供给方式直接影响实验与生产的效率与安全性。为此，我们精心设计了液氮供应罐系列，旨在为用户提供一个高效、安全、可靠的低温存储解决方案。 液氮供应罐...
	Casting wax used for golf head manufacturing	卖方: Syntop chemical Co.,Ltd.	Casting wax is mainly used in the field of aviation industry, civil precision casting, but also i...