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论文类型：期刊论文

发表时间：2012-03-07

发表刊物：RSC ADVANCES

收录刊物：SCIE、EI

卷号：2

期号：5

页面范围：1712-1728

ISSN号：2046-2069

摘要：Transition metal complexes of Ru(II), Pt(II) and Ir(III) with strong absorption of visible light and long-lived T-1 excited states were summarized. A design rationale of these complexes, i.e. direct metalation of organic chromophore, was proposed. Alternatively an organic chromophore can be dangled on the peripheral moiety of the coordination center. In both cases the long-lived intraligand triplet excited state ((IL)-I-3) can be accessed. However, the (IL)-I-3 excited state is usually emissive for the former case and it is very often non-emissive for the latter case. Two methods used for study of the long-lived triplet excited state, i.e. the time-resolved transient difference absorption spectroscopy and the spin density analysis, are briefly introduced. Preliminary applications of the complexes in luminescent O-2 sensing and triplet-triplet annihilation (TTA) upconversions were discussed.