Effect of the residual template on surface photoelectric characteristics of structurally-ordered macroporous nanocrystalline TiO2

摘要：

The macroporous nanocrystalline TiO2 thin film was prepared by dipping-coating method. Polystyrene (PS) microspheres template was used as pore-forming assistant and TiO2 sol was used as precursor. The photoelectric characteristics of the samples were studied using surface photovoltage (SPV) and photoacoustic (PA) techniques. The presence of a small amount of residual template damages the integrity of the porous TiO2 film with inverse opal structure, and TiO2 may be restricted in certain application fields as photonic crystals. A small amount of residual template changes the surface photovoltaic properties of the porous TiO2 film, resulting mainly in the broadened scope and the increased intensity of SPV response.

关键词： macroporous nanocrystalline TiO2 thin film PS template SPV PA residual template

作者: Sailing Wei Kuiying Li Weiyong Yang Chunmei Wang Jian Zhang

作者单位: State Key Lab of Metastable Materials Science and Technology, Yanshan University,Qinhuangdao Hebei Province 066004, China

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 20-25

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）