상세정보
학술지
Sputter Deposition of Sn-doped ZnO/Ag/Sn-doped ZnO Transparent Contact Layer for GaN LED Applications
- 발행일
- 201610
- 출처
- Materials Letters, v.180, pp.72-76
- ISSN
- 0167-577X
- 출판사
- Elsevier
- 협약과제
- 16MB1100, 미래광고 서비스를 위한 에너지절감형 환경적응 I/O (Input/Output) 플랫폼 기술 개발, 황치선
- 초록
- Sn-doped ZnO/Ag/Sn-doped ZnO (ZAZ) multilayers prepared using sputtering process was employed in GaN-based blue light-emitting diodes(LEDs) as transparent contact layers (TCLs). The ZAZ layer had better optical and electrical properties without any thermal annealing. The ZAZ TCLs improved the current spreading on p-GaN layer and increased the light output power in the large area devices. The efficiency droop was also quite small in the case of adopting a ZAZ TCL in GaN-based LEDs. These results are promising for the development of a ZAZ TCL using sputtering process for GaN LED applications.
- KSP 제안 키워드
- Blue light-emitting diodes, GaN LED, GaN-based LEDs, LED applications, Light output power(Lop), Optical and electrical properties, Sn-doped ZnO, Thermal annealing, current spreading, efficiency droop, electrical properties(I-V curve)