高度有序的TiO₂纳米管阵列在柔性染料敏化太阳能电池中的应用

Application of highly ordered TiO2 nanotube arrays in flexible dye-sensitized solar cells.

作者信息

Kuang Daibin, Brillet Jérémie, Chen Peter, Takata Masakazu, Uchida Satoshi, Miura Hidetoshi, Sumioka Kohichi, Zakeeruddin Shaik M, Grätzel Michael

机构信息

Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, CH-1015 Lausanne, Switzerland.

出版信息

ACS Nano. 2008 Jun;2(6):1113-6. doi: 10.1021/nn800174y.

DOI:10.1021/nn800174y

PMID:19206327

Abstract

TiO(2) nanotube arrays prepared by electrochemical anodization of Ti foils show impressive light to electricity conversion efficiency in the dye-sensitized solar cells (DSCs). The length of the TiO(2) nanotube arrays (5-14 microm) was controlled by varying the anodization time from 2 to 20 h. The influence of nanotube lengths on the photovoltaic performance of DSCs was investigated by impedance. A flexible DSC using TiO(2) nanotube arrays on a Ti foil as a working electrode and polyethylene naphthalate (ITO/PEN) as counterelectrode in combination with solvent-free ionic liquid electrolyte achieved 3.6% photovoltaic conversion efficiency under simulated AM 1.5 sunlight.

摘要

通过对钛箔进行电化学阳极氧化制备的TiO₂纳米管阵列，在染料敏化太阳能电池（DSC）中展现出令人瞩目的光电转换效率。通过将阳极氧化时间从2小时变化到20小时，控制了TiO₂纳米管阵列的长度（5 - 14微米）。通过阻抗研究了纳米管长度对DSC光伏性能的影响。一种柔性DSC，使用钛箔上的TiO₂纳米管阵列作为工作电极，聚萘二甲酸乙二醇酯（ITO/PEN）作为对电极，并结合无溶剂离子液体电解质，在模拟AM 1.5太阳光下实现了3.6%的光伏转换效率。