ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 White Light Emitting Electrophosphorescent Devices with Solution Processed Emission Layer
Cited 5 time in scopus Download 0 time Share share facebook twitter linkedin kakaostory
저자
이정익, 추혜용, 양용석, 도이미, 정승묵, 박상희, 황치선
발행일
200612
출처
Japanese Journal of Applied Physics, v.45 no.12, pp.9231-9233
ISSN
0021-4922
출판사
Japan Society of Applied Physics (JSAP), Institute of Physics (IOP)
DOI
https://dx.doi.org/10.1143/JJAP.45.9231
협약과제
06MB2300, Flexible 디스플레이, 조경익
초록
White light emitting diodes with high efficiency and brightness have been fabricated using phosphorescent materials by spin coating an emission layer. The emission layer consisted of sky blue and orange light emitting materials based on iridium complexes, which were dissolved in toluene solvent with 4,4??-bis(carbazoyl-9-yl)biphenyl (CBP) as a host and polystyrene as a binder. The introduction of polystyrene binder resulted in not only good film forming properties but also better device performance than that of poly (vinyl carbazole) conventionally used as a host material. The device structure was ITO/PEDT:PSS/emission layer/BAlq/LiF/Al. The color of the devices varied according to the composition of light emitting materials and the device having the closest to white emission showed CIE coordinates of (0.33, 0.39) with an external quantum efficiency and a current efficiency of 6.1% and 13 cd/A, respectively, at 1.00cd/m2. © 2006 The Japan Society of Applied Physics.
키워드
Electrophosphorescence, Solution process, White organic light emitting diode
KSP 제안 키워드
Applied physics, CIE coordinates, Device structure, Emitting materials, External Quantum Efficiency, Film forming, Iridium complexes, Organic light-emitting diodes(OLEDS), Phosphorescent materials, Sky blue, Solution-processed