Spatial donor/acceptor architecture for intramolecular charge-transfer emitter

Hong Cheng Li, Xun Tang, Sheng Yi Yang, Yang Kun Qu, Zuo Quan Jiang, Liang Sheng Liao

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Charge transfer via electron hopping from an electron donor (D) to an acceptor (A) in nanoscale, plays a crucial role in optoelectronic materials, such as organic light-emitting diodes (OLEDs) and organic photovoltaic cells (OPVs). Here, we propose a strategy for binding D/A units in space, where intramolecular charge-transfer can take place. The resulted material DM-Me-B is able to give bright emission in this molecular architecture because of the good control of D/A interaction and conformational rigidity. Moreover, DM-Me-B presents small singlet-triplet splitting energy, enabling thermally activated delayed fluorescence. Therefore, the DM-Me-B exhibits ∼20% maximum external quantum efficiency and low efficiency roll-off at 1000 cd/m2, certifying an effective strategy in controlling D/A blocks through space.

Original languageEnglish
Pages (from-to)1245-1248
Number of pages4
JournalChinese Chemical Letters
Volume32
Issue number3
DOIs
Publication statusPublished - Mar 2021
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemistry

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