화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2002년 봄 (04/26 ~ 04/27, 강원대학교)
권호 8권 1호, p.1849
발표분야 재료
제목 나노 크기의 InGaN/GaN 다층양자우물 LED의 제조
초록 Plasma-induced damage of InGaN/GaN multiple quantum well (MQW) LEDs has been studied in terms of forward turn-on and reverse breakdown voltages, together with etch rate and surface morphology. The physical degradation of sidewall along with rough surface morphology of n-GaN caused by increased ion scattering induced the deterioration of the forward and reverse voltages. The forward turn-on voltage was relatively independent of the pressure up to 20 mTorr. The reverse breakdown voltage showed the worst degradation at 75 % Cl2 mainly because of a sidewall contamination. It was found that the turn-on voltage is sensitive to the surface roughness of the etched n-GaN and the breakdown voltage is strongly affected by the sidewall contamination. Annealing under nitrogen after the mesa etching improved the electrical properties of the of InGaN/GaN MQW LEDs
저자 한윤봉
소속 전북대
키워드 Fabrication; InGaN/GaN mutiple quantum well; Light-emitting diode
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