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Bifunctional materials enabling intramolecular triplet–triplet upconversion and low-threshold amplified spontaneous emission

delete2026-05-28
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PRE
AI
A
Aoi Haraguchi
K
Kenichi Goushi *
C
Chihaya Adachi *
DOI：10.1016/j.orgel.2026.107452delete
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Abstract

Abstract

En 中文
• A bifunctional molecule (BOXDP3) combining low-threshold ASE and intramolecular triplet–triplet upconversion was developed. • Intramolecular triplet–triplet upconversion activity in BOXDP3 was demonstrated via triplet-sensitized upconversion and concentration-dependent analysis. • BOXDP3 exhibits a low ASE threshold of 3.8 ± 0.5 μJ cm−2 in CBP-doped films. • Incorporation of anthracene units enhances photostability through localized triplet states. • Intramolecular triplet–triplet upconversion enables triplet recycling, providing a strategy to suppress triplet-induced losses in organic semiconductor lasers.
Keywords:
BOXDP3
triplet–triplet upconversion
amplified spontaneous emission
organic semiconductor lasers
photostability

Journal

Organic Electronics cover
Organic Electronics
IF:
2.6
Papers:
244
Citations:
1.1W

Organization

K
kyushu university
Scholars:
3.7K
Papers: 1.4K
Citations: 0
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