4 Inch Blue LED GaN Epitaxial Wafer On Sapphire SSP C Plane (0001) Off Angle Toward M-Axis 0.2 ± 0.1°

4 inch Blue LED GaN epitaxial wafer on sapphire SSP

Using blue radiation in LED technology offers two specific advantages – one, it consumes lesser power, two, it is more efficient in terms of light output. For instance, from 2014, to 2018, with advancement in phosphor, the efficiency of blue LEDs increased from 130-140 lm/W to 200-210 lm/W.

Another major problem in producing blue LEDs was the difficulty in p-doping GaN with precision. In the late 1980s, Amano and Akasaki discovered that when GaN was doped with zinc atoms, it emitted more light and thus this gave better p-doping. This phenomena was later explained in an article by Nakamura.

About Us

We specialize in processing a variety of materials into wafers, substrates and customized optical glass parts.components widely used in electronics, optics, opto electronics and many other fields. We also have been working closely with many domestic and oversea universities, research institutions and companies, provide customized products and services for their R&D projects. It's our vision to maintaining a good relationship of cooperation with our all customers by our good reputations.

FAQ

Q: Are you trading company or manufacturer ?
We are factory.
Q: How long is your delivery time?
Generally it is 3-5 days if the goods are in stock.
or it is 7-10 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
Payment <=5000USD, 100% in advance.
Paymen >=5000USD, 80% T/T in advance , balance before shippment.