Highly Efficient TADF Polymer Electroluminescence with Reduced Efficiency Roll-off via Interfacial Exciplex Host Strategy
Source abstract
Abstract
Solution-processed organic light-emitting diodes (s-OLED) consisting of TAPC/TmPyPB interfacial exciplex host and polymer PAPTC TADF emitter are prepared, simultaneously displaying ultralow voltages (2.50/2.91/3.51/4.91 V at luminance of 1/100/1000/1000 cd m –2 ), high efficiencies (14.9%, 50.1 lm W –1 ), and extremely low roll-off rates ( J 50 of 63.16 mA cm –2, L 50 of ca. 15000 cd m –2 ). Such performance is distinctly higher than that of pure-PAPTC s-OLED. Compared to pure-PAPTC, the advanced emissive layer structure of TAPC:PAPTC/TmPyPB is unique in much higher PL quantum yield (79.5 vs 36.3%) and nearly 4-fold enhancement in k RISC of the PAPTC emitter to 1.48 × 10 7 s –1 .
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Organic Light-Emitting Diodes Research · Organic Electronics and Photovoltaics · Luminescence and Fluorescent Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Science, Changchun University of Science and Technology, Changchun 130022, P. R. China
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
University of Chinese Academy of Sciences, Beijing 100049, P. R. China
Funding
Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Chinese Academy of Sciences
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