상세 보기
Enhancement of light extraction in GaN-based light-emitting diodes by Al2O3-coated ZnO nanorod arrays
- Park, Jinsub;
- Shin, Dong Su;
- Kim, Do-Hyun
Citations
WEB OF SCIENCE
31Citations
SCOPUS
31초록
We report on the improvement of light extraction efficiency in blue light-emitting diodes (LEDs) by the use of Al2O3/ZnO core/shell nanorods (NRs) grown on the surface of the LED epi-structure. The electroluminescence intensity at a current injection of 20 mA of LEDs with 40 nm-thick Al2O3-coated ZnO NR arrays is 2.1 and 4.0 times than those of LEDs with bare ZnO NRs and no NRs, respectively. The enhanced light extraction of LEDs with Al2O3-coated ZnO NRs can be attributed to an increase in transmission and improved light extraction probability for photons generated in blue LEDs due to a reduction of Fresnel reflection loss.
키워드
GaN; Light-emitting diodes; Al2O3/ZnO; Nano-hybrid; Light extraction; Alumina; Aluminum oxide; Diodes; Electroluminescence; Gallium nitride; II-VI semiconductors; III-V semiconductors; Light
- 제목
- Enhancement of light extraction in GaN-based light-emitting diodes by Al2O3-coated ZnO nanorod arrays
- 저자
- Park, Jinsub; Shin, Dong Su; Kim, Do-Hyun
- 발행일
- 2014-10
- 유형
- Article
- 권
- 611
- 페이지
- 157 ~ 160