상세정보
학술지
Fab-compatible Nano-lens Array Integration for Optically Efficient Flexible Top-emitting Organic Light-emitting Diodes
- 발행일
- 201906
- 출처
- Japanese Journal of Applied Physics, v.58 no.SD, pp.1-6
- ISSN
- 0021-4922
- 출판사
- Japan Society of Applied Physics (JSAP)
- 협약과제
- 19HB1500, 디스플레이 일체형 투명 틀렉서블 복합 생체인식 디바이스 핵심기술 개발, 안성덕
- 초록
- This work extends the kinds of organic materials that can form nano-lens arrays (NLAs). We have previously addressed fabrication of a N,N??-di(1-naphthyl)-N,N??-diphenyl-(1,1??-biphenyl)-4,4??-diamine (NPB) NLA and explained the formation mechanism as NPB crystallization and the resulting increase in surface tension. Here, we report a Tris(8-hydroxyquinolinato)aluminum (Alq3) NLA fabricated by the same deposition method as a NPB NLA. Grazing-incidence small-angle X-ray scattering experiments indicate that the formation mechanism of the Alq3 NLA is the same as that of the NPB NLA. Furthermore, this study broadens the application of NLAs from rigid to flexible organic light-emitting diodes (OLEDs). Here, flexible stainless steel-based devices using a low-temperature thermal release film, atomic layer deposition and NPB NLA processes are fabricated and characterized. With a NLA, current efficiency is increased 1.4 times, indicating that fab-compatible NLA technology is also available for flexible OLEDs.
- KSP 제안 키워드
- Atomic Layer Deposition, Deposition method, Formation Mechanism, Lens array, Low temperature(LT), Organic light-emitting diodes(OLEDS), Organic materials, Scattering experiments, Stainless steel(SUS316), Surface tension(ST), current efficiency