【摘 要】
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Roughened surfaces of light-emitting diodes (LEDs) provide substantial improvement in light extraction efficiency.By preparing the self-assemble nanoporous Ni t
【机 构】
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Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials and School of Electr
论文部分内容阅读
Roughened surfaces of light-emitting diodes (LEDs) provide substantial improvement in light extraction efficiency.By preparing the self-assemble nanoporous Ni template through rapid annealing of a thin Ni film,followed by a low damage dry etching process,a p-side-up LED with a roughened surface has been fabricated.Compared to a conventional LED with plane surface,the light output of LEDs with nanoporous p-GaN surface increases up to 71％ and 36％ at applied currents of 1 mA and 20mA,respectively.Meanwhile,the electrical characteristics are not degraded obviously after surface roughening.
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