Study on band-controlled semiconductor photocatalysts based on anion-doping in Fe- or Cu-based oxides

基于铁或铜基氧化物阴离子掺杂的能带控制半导体光催化剂的研究

• 批准号: 22550188
• 负责人: MORIKAWA Takeshi
• 金额: $ 2.41万
• 依托单位: Toyota Central R&D Lab., Inc.
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22550188/
• 关键词: p 型半導体; スパッタリング; 光触媒; 酸化鉄; 酸化銅; 光電流; 半導体; 可視光; エネルギー変換; 窒素ドープ; 酸化タンタル; 触媒・化学プロセス; 無機工業化学; p型半導体

A p-type N-doped α-Fe_2O_3 was developed by magnetron sputtering of a Fe_2O_3 target in a plasma containing N2 and Ar, followed by postannealing. Photoelectrochemical measurement under visible light irradiation showed that N- Fe_2O_3 exhibits a typical cathodic photocurrent originated from the p-type conduction. Furthermore, the photoactivity was enhanced by codoping of Zn. N,Zn-codoped Fe_2O_3, a p-type semiconductor with a band gap of 2.0 eV, was developed by cosputtering of Fe_2O_3 and ZnO in a plasma mixture of N_2 and Ar, followed by post-annealing. N,Zn- Fe_2O_3 showed a very high photocurrent, most likely originating from a higher concentration of acceptors than those of N- and Zn- Fe_2O_3.

通过在可见的光化学测量中，在可见的光化学测量中，通过磁蛋白溅射在可见的光辐射下，p型n掺杂α-fe_2o_3是由fe_2o_3靶标开发的，通过Zn代码的Fe_2O_3增强了光活性，P-type半导体与v的p型半导体是通过fe_2o_3的cosputter在N_2和AR的等离子体混合物中的fe_2o_3和ZnO中开发的。 n和zn-fe_2o_3的高光定位。

项目成果

p-type conduction in N-doped α-Fe_2O_3 for solar fuel generation

用于太阳能燃料发电的 N 掺杂 α-Fe_2O_3 中的 p 型传导

• 发表时间: 2011
• 作者: T.Morikawa;S.Sato;T.Arai;T.Kajino
• 通讯作者: T.Kajino

半導体材料並びにそれを用いた光触媒体、光電極及び太陽電池

半导体材料、光催化剂、光电极以及使用其的太阳能电池

• 发表时间: 2011

Visible -light -induced selective photochemical and photoelectrochemical CO2 reduction utilizing semiconductor/metal-complex hybrid photocatalysts

利用半导体/金属复合物混合光催化剂进行可见光诱导的选择性光化学和光电化学二氧化碳还原

• 发表时间: 2011
• 作者: T. Morikawa;et al.
• 通讯作者: et al.

P-type conduction in N-doped N-Cu2O, N-ZnO and N-Ta2O5 semiconductors essential for Photocatalytic Solar Fuel Production

N 掺杂 N-Cu2O、N-ZnO 和 N-Ta2O5 半导体中的 P 型传导对于光催化太阳能燃料生产至关重要

• 发表时间: 2010
• 作者: T. Morikawa;et al.
• 通讯作者: et al.

Solar CO2 Reduction Conjugated with H2O Oxidation Utilizing Semiconductor/Metal‐Complex Hybrid

利用半导体/金属络合物混合技术将太阳能二氧化碳还原与水氧化相结合

• 发表时间: 2012
• 作者: Ken Nakajima;Dong Wang;So Fujinami;Hao Liu;Xiaobin Liang;Makiko Ito and Toshio Nishi;笹沼裕二;T. Morikawa;Ken Nakajima and Toshio Nishi;Daisuke Abe and Yuji Sasanuma;Takeshi Morikawa
• 通讯作者: Takeshi Morikawa