BaSO_(4)修饰N3敏化纳米晶TiO_(2)电极的光电性能研究  

Study on the Photoelectric Properties of N3 Sensitized Nanocrystalline TiO_(2)Electrode Modified with BaSO_(4)

作　　者：王纪超 潘琳琳 WANG Jichao;PAN Linlin(Henan Chemical Industry Research Institute Co.,Ltd.,Zhengzhou 450052,China)

机构地区：[1]河南省化工研究所有限责任公司,河南郑州450052

出　　处：《河南化工》2023年第10期27-31,共5页Henan Chemical Industry

摘　　要：采用一种简便方法制备了BaSO_(4)修饰N3敏化纳米晶TiO_(2)电极,研究了BaSO_(4)修饰层厚度对电极电化学的影响及BaSO_(4)修饰N3敏化纳米晶TiO_(2)电极的光电化学性能。用光谱电化学研究了BaSO_(4)修饰层对N3敏化纳米晶TiO_(2)电极平带电势的影响。实验结果表明,用BaSO_(4)修饰过的电极与未修饰的电极比较,Efb基本没有变化,用BaSO_(4)修饰后,电极的陷阱态浓度减小。二层BaSO_(4)修饰层的N3敏化纳米晶TiO_(2)太阳能电池在100 mW/cm 2白光照射下的光电转化效率最高(7.40%)。BaSO_(4)modified N3 sensitized nanocrystalline TiO_(2)electrode is prepared by a simple method.The effect of the thickness of BaSO_(4)modified layer on the electrochemistry of the electrode the photoelectrochemical properties of N3 sensitized nanocrystalline TiO_(2)electrode modified by BaSO_(4)are studied.The effect of BaSO_(4)modified layer on the flat band potential of N3 sensitized nanocrystalline TiO_(2)electrode is studied by spectroelectrochemistry.The experimental results show that the Efb of the BaSO_(4)modified electrode is basically unchanged compared with the unmodified electrode.After modified with BaSO_(4),the trap state concentration of the electrode decreases.The N3-sensitized nanocrystalline TiO_(2)solar cell with two layers of BaSO_(4)modified layer has the highest photoelectric conversion efficiency of 7.40%under 100 mW/cm^(2)white light irradiation.

关 键 词：染料敏化纳米晶TiO_(2)电极 BaSO_(4) 表面修饰 光谱电化学 能带结构 

分 类 号：TB383[一般工业技术—材料科学与工程] TQ152[化学工程—电化学工业]