Design and Preparation of New Surface with Photoelectrical Functions

具有光电功能的新型表面的设计与制备

• 批准号: 06453112
• 负责人: HASHIMOTO Kazuhito
• 金额: $ 4.54万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06453112/
• 关键词: Photoelectro-chemistry; Photointerface; Superlattice; Diamond film; Photocurrent; 光電流スペクトロスコピー; 二次元マッピング

In the present study, we aimed to design annd synthesize new phtoelectrochemical interfaces having new functions. Moreover, we have analyzed photochemical reaction processes occuring at the interfaces. The topics we studied can be summarized as follows.1. Studies on photoelectrochemical properties of semiconductor superlattice film.We have used Si/SiC or Si/SiN superlattice as aa photoelectrode. Because Si is unstable in aqueous solution, we designed the electrode with with SiC or SiN side contacts with the solution.2. Design and synthesis of photofunctionalized diamond film.・Various electrochemial reactions were tried using hyghly boron doped diamond conductive electrode.・Semiconducting diamond electrode was synthesized by controlling the boron concentration. By using this semiconductor electrode, we have tried photo-electrochemical carbon dioxide reduction and nitrogen fixation.・Microstructured diamond film was prepared bny using photoelectrochemically etched silicon substrate.3. Analysis on the relation between structure of photointerface and charge separation efficiency.We used photocurrent-Raman mapping system to obtain two dimensional data on TiO2 film photocatalyst.

本研究旨在设计和合成具有新功能的新型光电化学界面。此外，我们还分析了界面处发生的光化学反应过程。我们研究的课题可以概括如下：1.半导体超晶格薄膜光电化学性质的研究我们用Si/SiC或Si/SiN超晶格薄膜作为光电极。由于Si在水溶液中不稳定，我们设计了SiC或SiN侧与溶液接触的电极.光功能化金刚石薄膜的设计与合成在高硼掺杂金刚石导电电极上进行了各种电化学反应试验。通过控制硼浓度合成了半导体金刚石电极。通过使用这种半导体电极，我们尝试了光电化学二氧化碳还原和固氮。·采用光电化学腐蚀法在硅衬底上制备了微结构金刚石薄膜.分析了光界面结构与电荷分离效率的关系，利用光电流-拉曼光谱系统获得了TiO_2薄膜光催化剂的二维数据。

项目成果

H.Matsubara: "Photoactine TiO_2 Contaening Paper; Preparation and Its photocatalytic Activity under Weak UV Light Ill aminatisen" Chem. Lett.767-768 (1995)

H.Matsubara：“光活性TiO_2纸；弱紫外光下的制备及其光催化活性” Chem。

I.Sopyan: "Efficient TiO_2 Powder and Film photocatalysts with Ratile Crystal Structare" Chem. Lett.69-70 (1995)

I.Sopyan：“具有Ratile晶体结构的高效TiO_2粉末和薄膜光催化剂”Chem。

I.Sopyan and A.Fujishima etc.: "Efficient TiO2 Powder and Film Photocatalysts with Rutile Crystal Structure" Chemistry Letters. 69-70 (1996)

I.Sopyan和A.Fujishima等：“具有金红石晶体结构的高效TiO2粉末和薄膜光催化剂”化学快报。

K.Morigaki and A.Fujishima etc.: "Azobenzene-Derivative Langmuir-Blodgett Films Deposited on Various Thiol Monolayers" The Journal of Physical Chemistry. 99(40). 14771-14777 (1995)

K.Morigaki和A.Fujishima等：“偶氮苯衍生物Langmuir-Blodgett薄膜沉积在各种硫醇单层上”物理化学杂志。

K.Ikeda and A.Fujishima etc.: "Microscopic Observation of Photocatalytic Reaction Using Microelectrode: Special Resolution for Reaction Products Distribution" Chemistry Letters. 979-980 (1995)

K.Ikeda和A.Fujishima等：“使用微电极显微观察光催化反应：反应产物分布的特殊分辨率”化学快报。