Efficient Intermolecular Energy Transfer between Polysilanes Revealed by Time-Resolved Photoluminescence
Efficient Intermolecular Energy Transfer between Polysilanes Revealed by Time-Resolved Photoluminescence
复制标题
时间分辨光致发光揭示聚硅烷之间的高效分子间能量转移
DOI：
10.1143/jjap.37.4412
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发表时间：
1998
影响因子：
1.5
通讯作者：
K. Yamada
中科院分区：
文献类型：
--
作者：
S. Aihara;N. Kamata;W. Ishizaka;Masato Umeda;A. Nishibori;D. Terunuma;K. Yamada
对聚硅烷的传统研究是在单独的基础上处理分子结构，迄今为止仅对不同分子之间的分子间相互作用进行了少数研究。为了详细研究分子间能量转移过程，对聚二己基硅烷（PDHS）、聚二苯基硅烷（PDPS）及其粉末状混合物进行了时间分辨光致发光光谱分析。在混合样品中，PDHS 发射的强度和寿命均下降，而 PDPS 发射的强度和寿命均增加。它们的混合比依赖性表明，由于多极性相互作用，从PDHS到PDPS的共振能量转移过程在发光特性中发挥着重要作用，从而揭示了它们作为相互作用对的分子设计及其功能应用的可能性。
Conventional studies on polysilanes have dealt with molecular structures on an individual basis and only a few studies have been conducted so far on the intermolecular interaction between different molecules. In order to investigate the intermolecular energy transfer process in detail, time-resolved photoluminescence spectroscopy was carried out against polydihexylsilane (PDHS), polydiphenylsilane (PDPS) and their mixture in powder form. Both the intensity and the lifetime of PDHS emission decreased, while those of PDPS emission increased in the mixed samples. Their mixing-ratio dependence revealed that the resonant energy transfer process from PDHS to PDPS due to multi polar interaction played an important role in light emission characteristics, thus revealing the possibility of their molecular design as interacting pairs and their functional applications.