期刊论文

Tang, YW（唐一文）

中文

无机材料学报

1000-324X

2006

21

2

453-458

10.3321/j.issn:1000-324X.2006.02.032

国家自然科学基金（20207002） 教育部留学回国人员科研启动基金

本校为第一且通讯机构

通过阴极还原在纳米TiO2膜上电沉积Cu2O,获得了p-Cu2O/n-TiO2异质结电极.研究了沉积温度对Cu2O膜厚、纯度和形貌的影响,制备出纯度较高、粒径为40～50nm的Cu2O薄膜.纳米Cu2O膜在200℃烧结后透光性最好,禁带宽度为2.06eV.光电化学测试表明纳米p-Cu2O/n-TiO2异质结电极呈现较强的n-型光电流响应并且能够提高光电转换效率.

This paper introduced the electrochemical deposition of Cu2O thin films on TiO2 films by cathodic reduction to form p-Cu2O/n-TiO2 heterostructure electrode. The effects of bath temperature on film thickness, purity and morphology of Cu2O films were studied. Pure spherically shaped Cu2O grains with 40-50 nm diameter were obtained. It is found that annealing at 200°C can improve the spectral transmittance of the Cu2O film and the film has a band gap of 2.06 eV. The measurements of photoelectrochemical behavior of the nanocrystalline p-Cu2O/n-TiO2 heterostructure electrode show that such hete...