期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 35, 期 8, 页码 807-812出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201400002
关键词
conjugated polymers; curing of polymers; heteroatom-containing polymers; light-emitting diodes; spin coating
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [NRF-2011-0006847]
- Human Resources Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant [20134010200490]
- Korea Government Ministry of Trade, Industry and Energy
- New and Renewable Energy Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Korea Government Ministry of Trade, Industry Energy [20113010010030]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20134010200490] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2011-0006847] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Two thermally cross-linkable hole transport polymers that contain phenoxazine and triphenylamine moieties, X-P1 and X-P2, are developed for use in solution-processed multi-stack organic light-emitting diodes (OLEDs). Both X-P1 and X-P2 exhibit satisfactory cross-linking and optoelectronic properties. The highest occupied molecular orbital (HOMO) levels of X-P1 and X-P2 are -5.24 and -5.16 eV, respectively. Solution-processed super yellow polymer devices (ITO/X-P1 or X-P2/PDY-132/LiF/Al) with X-P1 or X-P2 hole transport layers of various thicknesses are fabricated with the aim of optimizing the device characteristics. The fabricated multi-stack yellow devices containing the newly synthesized hole transport polymers exhibit satisfactory currents and power efficiencies. The optimized X-P2 device exhibits a device efficiency that is dramatically improved by more than 66% over that of a reference device without an HTL. image
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