文献类型：期刊文献

英文题名：Red-light excited efficient metal-free near-infrared room-temperature phosphorescent films

作者：Sun, Siyu[1];Ma, Liangwei[1];Wang, Jie[1];Ma, Xiang[1];Tian, He[1]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn, Key Lab Adv Mat & Feringa Nobel Prize Scientist J, Shanghai 200237, Peoples R China

年份：2022

卷号：9

期号：2

外文期刊名：NATIONAL SCIENCE REVIEW

收录：;EI(收录号：20221111787113);WOS:【SCI-EXPANDED(收录号:WOS:000768207300001)】；

基金：This work was supported by the National Natural Science Foundation of China (21788102, 22125803, 22020102006, 21871083 and 21722603), the Shanghai Municipal Science and Technology-Major Project (2018SHZDZX03), the Program of Shanghai Academic/Technology Research Leader (20XD1421300), the `Shu Guang' Project supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation (19SG26) and the Innovation Program of Shanghai Municipal Education Commission (2017-01-07-00-02-E00010).

语种：英文

外文关键词：amorphous metal-free phosphorescence; near-infrared phosphorescence; visible light excitation; phenolsulfonphthaleine derivatives; half-subtractor

摘要：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 (lambda(p) = 819 nm) with the highest phosphorescence quantum yield (phi(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. Stimulus-responsive organic near-infrared room temperature phosphorescent film materials were constructed, and a corresponding phosphorescent half-subtractor logic operation conducted as well.