Journal
SCIENCE ADVANCES
Volume 8, Issue 27, Pages -Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.abp8775
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Funding
- Ministry of Science and Technology of China [2017YFA0204503, 2018YFA0703200]
- Natural Science Foundation of China [51725304, 61890943, 22021002]
- Youth Innovation Promotion Association of the Chinese Academy of Sciences
- National Program for Support of Top-notch Young Professionals, Beijing National Laboratory for Molecular Sciences [BNLMS-CXXM-202012]
- Key Research Program of the Chinese Academy of Sciences [XDPB13]
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A series of color-tunable, high-mobility, emissive organic semiconductors have been developed through molecular doping. The well-matched molecular structures and sizes enable efficient energy transfer and high charge transport, showing great potential for applications in full-color smart displays and organic electrically pumped lasers.
Developing high-mobility emissive organic semiconductors with tunable colors is crucial for organic light-emitting transistors (OLETs), a pivotal component of integrated optoelectronic devices, but remains a great challenge. Here, we demonstrate a series of color-tunable, high-mobility, emissive, organic semiconductors via molecular doping with a high-mobility organic semiconductor, 2,6-diphenylanthracene, as the host. The well-matched molecular structures and sizes with efficient energy transfer between the host and guest enable the intrinsically high charge transport with tunable colors. High mobility with the highest value >2 cm(2) V-1 s(-1) and strong emission with photoluminescence quantum yield >15.8% are obtained for these molecular-doped organic semiconductors. Last, a large color gamut for constructed OLETs is up to 59% National Television System Committee standard, meanwhile with an extremely high current density approaching 326.4 kA cm(-2), showing great potential for full-color smart display, organic electrically pumped lasers and other related logic circuitries.
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