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
|
E-Mail |
|
VOD |
VOD 보기 |
원문파일 |
초록 보기 |