无机材料学报2011，Vol.26Issue(8)：819-822,4.DOI:10.3724/SP.J.1077.2011.00819
锂掺杂二氧化钛致密层对染料敏化太阳电池性能的影响
Effect of Li-doped TiO2 Compact Layers for Dye Sensitized Solar Cells
摘要
Abstract
Both TiO2 compact layer (d-TiO2) and Li-doped TiO2 compact layer (d-Li-TiO2) were deposited between nano-TiO2 and transparent conductive oxide (TCO) for dye sensitized solar cells (DSSC) by the technique of pulsed laser deposition (PLD). XRD pattern shows the compact layers are crystallized in anatase structure. Compared with FTO-based DSSC without compact layer, the open voltage decay measurement shows the novel structure can slow the decay of the open circuit voltage, indicating an effective suppression of back electrons transfer from TCO to the electrolyte by the dense buffer layers. In addition, the interface resistance between the nano-TiO2 and the TCO falls down due to the reduced energy band-gap of Li-doped TiO2, which makes it easier to transfer the generated electrons from conducting band of nano-TiO2 to TCO surface, leading an enlarged short current from 4.2 mA/cm of FTO-based to 4.8 mA/cm2 for that with d-TiO2 and 6.1 mA/cm2 for d-Li-TiO2, respectively. Thus, the photovoltaic energy conversion efficiency of DSSC based on the Li-doped TiO2 compact layer enhances as much as 42% compared with that FTO-based DSSC without TiO2 compact layer.关键词
染料敏化太阳能电池/掺锂二氧化钛/致密层/界面电阻Key words
dye-sensitized solar cell/Li-doped TiO2/compact layer/interface resistance分类
物理学引用本文复制引用
周文谦,鲁玉明,陈昌兆,刘志勇,蔡传兵..锂掺杂二氧化钛致密层对染料敏化太阳电池性能的影响[J].无机材料学报,2011,26(8):819-822,4.基金项目
国家自然科学基金(10774098,50702033) （10774098,50702033）
上海市科委项目(0752nm017,08521101502) （0752nm017,08521101502）
上海市重点学科项目(S30105) （S30105）
