标题：Luminescence-tuning and energy transfer mechanism of blends based on silicon-containing compounds
作者：Hua Wang;Yan Liang;Linglong Feng
作者机构：[Wang, H] Key Laboratory of Special Functional Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, 更多
通讯作者地址：[Lu, HF]Shandong Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Special Funct Aggregated Mat, Jinan 250100, Peoples R China.
来源：Dyes and Pigments
关键词：Tunable color;White light emission;Energy transfer;Silicon-containing compounds;Thin film;Mechanisms
摘要：A series of tunable luminescence was obtained by controlling the donor/acceptor ratios. A silicon-cored fluoranthene derivative named bis (7,10-diphenyl-fluoranthene) methylphenylsilane (BFMPS) was used as the donor and a perylene end-capped polydimethylsiloxane (PECP) was used as the acceptor for preparing the blending systems. Efficient energy transfer was detected in these unique systems, which were composed of micromolecules and fluorescence macromolecules. In particular, pure white emission was obtained when the adequate blending ratio was adopted. Further characterizations and investigations were carried out to examine the energy transfer from donor to acceptor both in solution and in solid thin films. Two different energy transfer mechanisms were deduced from the investigation of the ultraviolet absorption and luminescence spectra. Radiative energy transfer was dominant in solution while Foster resonant energy transfer was dominant in thin films.