@article{f0c0753b5b044545b89f2ab0019ce125,
title = "Novel spirofluorene/indole/carbazole-based hole transport materials with high triplet energy for efficient green phosphorescent organic light-emitting diodes",
abstract = "Three novel host materials 9-(4-(5-(4-(9-phenyl-9H-fluoren-9-yl)phenyl)-1H-indol-1-yl)phenyl)-9H-carbazole (C1), 9-(4-(9,9-diphenyl-9H-fluoren-4-yl)-1H-indol-1-yl)-9-phenyl-9H-carbazole (C2) and 9-(4-(5-(9,9-diphenyl-9H-fluoren-2-yl)-1H-indol-1-yl)phenyl)-9H-carbazole (C3) based on spirofluorene, indole and carbazole derivatives have been designed and synthesized. Their thermal, photophysical and electrochemical properties were fully investigated. The OLED devices with C1–C3 as host were fabricated to investigate their electroluminescent properties. Compound C3 obtained the best device performances with the maximum current efficiency of 45.2 cd A−1 and the maximum power efficiency of 23.2 lm W−1 for green phosphorescent organic light-emitting diodes.",
keywords = "Carbazole derivatives, Host materials, Indole derivatives, Phosphorescent organic light-emitting diodes, Spirofluorene derivatives",
author = "Qingchen Dong and Hong Lian and Zhixiang Gao and Zeling Guo and Ning Xiang and Zheng Zhong and Hongen Guo and Jinhai Huang and WONG, {Wai Yeung}",
note = "Funding Information: We acknowledge the financial support from the National Natural Science Foundation of China (Grant No.: 61307030 , 21303117 ). This work was also supported by the Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi (OIT), Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province, the Natural Science Foundation for Young Scientists of Shanxi Province, China (Grant No.: 2014021019-2 ), the Outstanding Young Scholars Cultivating Program, Research Project Supported by Shanxi Scholarship Council of China (Grant No.: 2014-02 ) and the Key R&D Project of Shanxi Province (International cooperation program, No. 201603D421032 ). W. Y. Wong thanks for the financial support from the Hong Kong Polytechnic University . ",
year = "2017",
month = feb,
day = "1",
doi = "10.1016/j.dyepig.2016.10.003",
language = "English",
volume = "137",
pages = "84--90",
journal = "Dyes and Pigments",
issn = "0143-7208",
publisher = "Elsevier BV",
}