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论文类型：期刊论文

发表时间：2018-05-28

发表刊物：ORGANIC & BIOMOLECULAR CHEMISTRY

收录刊物：SCIE

卷号：16

期号：20

页面范围：3692-3701

ISSN号：1477-0520

摘要：In this review, recent progress in heavy atom-free triplet photosensitizers was summarized. The general approaches include attaining S-1/T-n states sharing similar energy levels or proper molecular geometry to satisfy the angular momentum reservation in intersystem crossing (ISC). ISC via the higher singlet excited state (S-n, n > 1) T-m (m > 1), which is a rarely reported phenomenon, was also discussed. The ISC of some Bodipy dimers was proposed to be via the doubly excited state', but recent studies show that the ISC mechanism of these Bodipy dimers is charge separation/recombination. These new findings in the study of triplet photosensitizers are useful for photovoltaics, photodynamic therapy and photocatalysis, as well as in fundamental photochemistry studies.