Molecular doped, color-tunable, high-mobility, emissive, organic semiconductors for light-emitting transistors.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 35857474.
- Also identified by DOI 10.1126/sciadv.abp8775 and PMC identifier 9269892.
- Licence recorded as CC BY-NC.
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Abstract
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<sup>2</sup> V<sup>-1</sup> s<sup>-1</sup> 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<sup>-2</sup>, showing great potential for full-color smart display, organic electrically pumped lasers and other related logic circuitries.