Red-light excited efficient metal-free near-infrared room-temperature phosphorescent films.
Red-light excited efficient metal-free near-infrared room-temperature phosphorescent films.
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红光激发高效无金属近红外室温磷光薄膜
DOI：
10.1093/nsr/nwab085
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发表时间：
2022-03
影响因子：
20.6
通讯作者：
Tian H
中科院分区：
文献类型：
--
作者：
Sun S;Ma L;Wang J;Ma X;Tian H
以溴代苯酚磺酞衍生物为发光材料，构建了一套红光激发、无金属离子的室温磷光体系。最佳的无金属RTP体系具有最红的近红外（NIR）RTP发射（λp = 819 nm）和最高的磷光量子产率（ΦRTP = 3.0%）。RTP发射可以通过交替加入酸和碱来切换开-关。基于这些性质，还构造了具有半隐函数和双通道响应（可见光发射/近红外RTP发射）的逻辑运算。构建了刺激响应型有机近红外室温磷光薄膜材料，并进行了相应的磷光半周期逻辑操作。
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 (λp = 819 nm) with the highest phosphorescence quantum yield (ΦRTP = 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. Stimulus-responsive organic near-infrared room temperature phosphorescent film materials were constructed, and a corresponding phosphorescent half-subtractor logic operation conducted as well.
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