EpiTop Announces Record High Power DUV LEDs

EpiTop Inc., a leading company in the development and manufacturing of deep ultraviolet light emitting diodes (DUV LEDs) today announces that they have demonstrated high performance DUV LEDs with wavelength at 280nm from a single 4545 large chip device, achieved a world record optical output power of 176.6 miliwatt @ 1A dc operation at room temperature. According to the best of their knowledge it is so far the highest reported optical power from a single die at such shorter wavelength under dc operation. The L-I and IV characteristic of the 4545 large chip was plotted below.

Figure 1 L-I and IV Characteristic of 4545 large chip at 280nm. ()

Yuanrong Technology Inc’s business has been extended from visible LEDs into DUV LEDs area since acquisition of QD Jason Electrical Ltd on October 2015, who was a sole DUV LEDs manufacturer in China so far.

“The new world record high optical output power was realized by using our proprietary homemade MOCVD technology and improved fabrication and packaging approach,” said Bob Liang, president of EpiTop Technology “the device voltage is as low as 5.8V even at 1A with differential resistance of 1 ohm only, such great electrical performance allows the large chip driven up to 1 A under dc operation before saturation, a contribution to the high output power achievement.”

“We are working on to transfer our new technology into production,” said Bob Liang, EpiTop Technology president “ we expect in the middle of this year to start shipping high power products, which will speed up the development of high power DUV LEDs application, strengthen the company’s world leading position in the DUV LEDs area.”

“Our goal is to provide the world most efficient and lowest cost DUV LEDs devices,” said Bob Liang, EpiTop Technology president “our DUV LEDs have already been used in many appliances like water purifier machine, humidifier, air purifier, sanitizing devices and so on. EpiTop Technology will continue to work closely with the customers to develop the innovated products enabled by our DUV LEDs devices.

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