分光便利帳

低温電場吸収･電場発光スペクトル測定装置の開発と光誘起電子移動反応研究への応用

Development of a Low Temperature Electroabsorption and Electroemission Measurement System and Its Application to the Study of Photoinduced Electron Transfer Reaction

飯森 俊文・Kamlesh Awasthi・太田 信廣
Toshifumi IIMORI, Kamlesh AWASTHI, Nobuhiro OHTA

電場吸収・発光スペクトルの温度依存性に関する研究を行うための装置を開発した．高分子薄膜を試料として用い、分子内光誘起電子移動反応系における電場発光スペクトルの温度依存性を測定した．

We report the system developed for low-temperature electroabsorption and electroemission spectroscopy. A closed cycle refrigerator unit is utilized as a cryostat. Sample substrates, which consist of thin polymer film and transparent electrodes, are prepared with spin coating and vacuum evaporation techniques and are mounted on the sample holder in vacuum condition. Sample temperature is monitored with a silicone thermometer put on the surface of the substrate. With this system, temperature dependence of the electrofluorescence spectra has been examined in an electron donor and acceptor pair which shows intramolecular photoinduced electron transfer reaction.