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首页> 外文期刊>Chemical Physics Letters >Steady-state and time-resolved studies of 2,7-carbazole-based conjugated polymers in solution and as thin films: determination of their solid state fluorescence quantum efficiencies
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Steady-state and time-resolved studies of 2,7-carbazole-based conjugated polymers in solution and as thin films: determination of their solid state fluorescence quantum efficiencies

机译：溶液和薄膜中2,7-咔唑基共轭聚合物的稳态和时间分辨研究：确定其固态荧光量子效率

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The UV-Vis absorption spectra and the luminescence properties of poly(N-octyl-2,7-carbazole) (POC) and poly(N-octyl-2,7-carbazole-alt-9,9-dioctyl-2,7-fluorene) PCF have been investigated in solution and in the solid state (thin films). No aggregate and/or excimer formation has been detected in these polymeric systems. From time-resolved fluorescence measurements in solution and in the solid state, the fluorescence efficiencies of the thin films have been estimated. It is found that the fluorescence efficiencies of these polycarbazoles in the solid state are quenched, as compared to those measured in fluid solutions, but remain relatively high (phi(F) congruent to 0.40), making them promising materials for electroluminescent devices. (C) 2003 Elsevier Science B.V. All rights reserved. [References: 35]
机译：聚（N-辛基-2,7-咔唑）（POC）和聚（N-辛基-2,7-咔唑-alt-9,9-二辛基-2,7）的UV-Vis吸收光谱和发光特性-芴）PCF已在溶液和固态（薄膜）中进行了研究。在这些聚合物体系中未检测到聚集体和/或准分子形成。从溶液和固态中时间分辨的荧光测量结果，可以估算出薄膜的荧光效率。已经发现，与在流体溶液中测量的那些相比，这些固态的聚咔唑的荧光效率被淬灭，但是仍然相对较高（phi（F）等于0.40），使其成为用于电致发光器件的有希望的材料。 （C）2003 Elsevier Science B.V.保留所有权利。 [参考：35]

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