A construction of compact measurement system of electroabsorption and electroemission spectra and the application to the investigation of photoinduced function of materials

紧凑型电吸收和电发射光谱测量系统的构建及其在材料光诱导功能研究中的应用

• 批准号: 12555239
• 负责人: OHTA Nobuhiro
• 金额: $ 7.23万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12555239/
• 关键词: Photophysical Chemistry; Photoreaction Dynamics; Photoinduced Function; Electronically Excited Molecule; Photoconductivity; 電場変調吸収発光測定装置; 電場吸収スペクトル; 電場発光スペクトル; 光機能材料; 光励起電子移動反応; 光ダイナミクスへの電場効果; 電場変調吸収発光装置; 光誘起電子移動反応

In order to investigate of the electric field effects on photochemical reaction and their relation to photoinduced function of materials, developments of measurement system of electroabsorption spectra (E-A) and electroemission spectra (E-E), with which not only specialists of photochemistry or molecular spectroscopy but also outsiders in this field can easily measure the spectra, are very important.In the present research, a compact apparatus for the measurement of the E-A and E-E spectra has been developed and manufactured by improving the E-A measurement system and E-E measurement system, which were separately constructed in our laboratory, and by a docking of these two measurement systems. The apparatus is controlled by a personal computer. Further, a software with which the E-A and E-E spectra can be easily analyzed has been also developed. Therefore, nonprofessional scientists can easily measure the spectra and analyze the data, and the magnitude of the change in electric dipole moment or molecular polarizability following excitation or emission can be easily obtained with this system.By using this system, electric field effects on photochemical reactions of intra- and intermolecular photoinduced electron transfer have been examined, especially in methylene-linked compounds of electron donor and acceptor or randomly distributed system of donor and acceptor.

为了研究电场对光化学反应的影响及其与材料光致功能的关系，研制电吸收光谱（E-A）和电发射光谱（E-E）的测量系统，使光化学和分子光谱学的专业人员和非专业人员都能方便地测量光谱，是十分重要的。通过改进在我们实验室中单独构建的E-A测量系统和E-E测量系统，并通过这两个测量系统的对接，已经开发和制造了用于测量E-A和E-E谱的紧凑装置。该装置由个人计算机控制。此外，还开发了一个可以方便地分析E-A和E-E谱的软件。因此，非专业科学家可以很容易地测量光谱和分析数据，并可以很容易地获得激发或发射后电偶极矩或分子极化率的变化幅度。利用该系统，研究了电场对分子内和分子间光诱导电子转移光化学反应的影响，特别是在电子给体和受体的亚甲基连接的化合物或给体和受体的随机分布体系中。

项目成果

N. Ohta, S. Umeuchi, T. Kanada, K. Akita, H. Kawabata and I. Yamazaki: "Electric field effects on fluorescence of pyrine in a homogeneously distributed system and in an oriented molecular system"J. Luminescence. 87-89. 733-735 (2000)

N. Ohta、S. Umeuchi、T. Kanada、K. Akita、H. Kawabata 和 I. Yamazaki：“均匀分布系统和定向分子系统中电场对吡啶荧光的影响”J。

T.Kanada: "A back electron transfer through a methylene chain in linked compound of carbazole and terephthalic acid methyl ester in a PMMA polymer film"Chem.Phys.Lett.. 332. 442-448 (2000)

T.Kanada：“PMMA聚合物薄膜中咔唑和对苯二甲酸甲酯的连接化合物中通过亚甲基链的反向电子转移”Chem.Phys.Lett.. 332. 442-448 (2000)

N.Ohta: "Excitation dynamics and its electric field dependence of meso, meso-linked porphyrin arrays in a polymer film"Int.J.Mod.Phys.B. 15. 3588-3592 (2001)

N.Ohta：“聚合物薄膜中内消旋、内消旋连接卟啉阵列的激发动力学及其电场依赖性”Int.J.Mod.Phys.B。

H.Kawabata: "Evidence for Electric Field-Assisted Back-Electron Transfer Through a Methylene Bond in a Linked Compound of Phenanthrene and Phthalimide in a Polymer Film"J.Chem.Phys.. 114. 7723-7726 (2001)

H.Kawabata：“通过聚合物薄膜中菲和邻苯二甲酰亚胺连接化合物中的亚甲基键进行电场辅助反向电子转移的证据”J.Chem.Phys.. 114. 7723-7726 (2001)

H. Kawabata: "Electric field effects on fluorescence of methylene-linked compounds of phenanthrene and N,N-dimethylaniline in a PMMA polymer film"Journal of Physical Chemistry A. 105・45. 10261-10270 (2001)

H. Kawabata：“PMMA聚合物膜中菲和N,N-二甲基苯胺的亚甲基连接化合物的荧光的电场效应”物理化学杂志A. 105・45（2001）。