化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (5) : 99-102.

新材料与新技术

TiO₂分枝纳米棒阵列的制备及其在杂化太阳能电池中的应用

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Fabrication of branched TiO₂ nanorod array for organic/inorganic hybrid solar cells

Hu Ao^1,2, Xu Lingfang¹, Yang Changping¹, Qu Shaohua², Zhong Zhicheng², Wang Jingyang²

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Received		Published
2017-01-04		2018-05-20
Issue Date	Revised Date
2018-07-03	2017-01-04

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摘要

采用水热法制备了TiO₂纳米棒阵列及TiO₂分枝纳米棒阵列,利用X射线衍射仪、扫描电子显微镜观察了样品的微观结构形貌。以TiO₂纳米棒及分枝纳米棒阵列作为光阳极,组装成聚-3己基噻吩∶富勒烯衍生物/TiO₂(P3HT∶PCBM/TiO₂)杂化太阳能电池,测试了电池的光电性能。结果表明:用分枝结构纳米棒阵列制备的杂化电池效率显著高于普通TiO₂纳米棒阵列电池。由漫反射谱和电化学阻抗谱测量结果分析可知,由于分枝结构增大了TiO₂纳米棒阵列的比表面积,加快了载流子传输,减少了界面载流子复合,同时也增强了入射光散射,从而提升了杂化电池的性能。

Abstract

The TiO₂ nanorod arrays and branched TiO₂ nanorod arrays were prepared by hydrothermal method.The microstructure and morphology of samples were characterized by XRD,SEM.The organic/inorganic hybrid solar cells based P3HT∶PCBM/TiO₂ branched TiO₂ nanorod arrays were also assembled.The photoelectric performance of cells were measured.The results showed that the efficiency of hybrid cell based on branched TiO₂ nanorod arrays was significantly higher than that of conventional nanorod arrays.By the analysis of diffuse reflectance spectroscopy and electrochemical impedance spectroscopy (EIS) measurements,the branching structure not only increased the surface area of TiO₂ nanorod arrays,accelerated the carrier transport and reduced the interfacial recombination of carriers,but also enhancd the incident light scattering,so as to enhance the performance of hybrid cells.

关键词

分枝TiO₂纳米棒阵列 / 水热法 / 杂化太阳能电池 / 光电性能

Key words

branched TiO₂ nanorod array / hydrothermal method / hybrid solar cells / photoelectric performance

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TiO₂分枝纳米棒阵列的制备及其在杂化太阳能电池中的应用[J]. 化工新型材料, 2018, 46(5): 99-102 DOI:

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