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Red-light excited efficient metal-free near-infrared room-temperature phosphorescent films.

ABSTRACT: A set of red-light-excited, metal-free room-temperature phosphorescence (RTP) systems was constructed with brominated phenolsulfonephthaleine derivatives. The best metal-free RTP system has the reddest near-infrared (NIR) RTP emission (λ_p = 819 nm) with the highest phosphorescence quantum yield (Φ_RTP = 3.0%) so far identified. The RTP emission can be switched ON-OFF by adding acid and alkali alternately. A logic operation with half-subtractor function and dual-channel response (visible light emission/NIR RTP emission) was also constructed based on these properties.

SUBMITTER: Sun S

PROVIDER: S-EPMC8866102 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature

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Red-light excited efficient metal-free near-infrared room-temperature phosphorescent films.

Sun Siyu S Ma Liangwei L Wang Jie J Ma Xiang X Tian He H

National science review 20210511 2

A set of red-light-excited, metal-free room-temperature phosphorescence (RTP) systems was constructed with brominated phenolsulfonephthaleine derivatives. The best metal-free RTP system has the reddest near-infrared (NIR) RTP emission (λ<sub>p</sub> = 819 nm) with the highest phosphorescence quantum yield (Φ<sub>RTP</sub> = 3.0%) so far identified. The RTP emission can be switched ON-OFF by adding acid and alkali alternately. A logic operation with half-subtractor function and dual-channel respo ...[more]

PMID: 35223047

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