通过掺杂二氧化钛纳米颗粒设计用于染料敏化太阳能电池的多孔隙层。

Design of multi-porous layer for dye-sensitized solar cells by doping with TiO2 nanoparticles.

作者信息

Hsieh Tung-Li, Chu Ann-Kuo, Huang Wen-Yao

机构信息

Department of Photonics, Institute of Electro-Optical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan, R.O.C.

出版信息

J Nanosci Nanotechnol. 2013 Jan;13(1):365-9. doi: 10.1166/jnn.2013.6721.

DOI:10.1166/jnn.2013.6721

PMID:23646739

Abstract

We propose a multi-layer dye-sensitized solar cell (DSSC). Conventional DSSC components use a singular TiO2 particle size and a mono-layer active layer, but we demonstrate a multi-layer and multi-scale TiO2 particle based DSSC. Doping with large TiO2 particles can produce light scattering inside the DSSC component. Light scattering effects reduce TiO2 absorption at wavelengths of 200-300 nm. The unabsorbed light zig-zags between the Pt back electrode layer and the substrate, and enhances the Ru-dye absorption. To enhance the scattering, we doped the active layer with 20 wt% of large diameter TiO2. The multi-layer DSSC increases efficiency by about 15% compared with standard DSSCs.

摘要

我们提出了一种多层染料敏化太阳能电池（DSSC）。传统的DSSC组件使用单一的二氧化钛粒径和单层活性层，但我们展示了一种基于多层和多尺度二氧化钛颗粒的DSSC。用大尺寸二氧化钛颗粒进行掺杂可在DSSC组件内部产生光散射。光散射效应会降低二氧化钛在200-300纳米波长处的吸收。未被吸收的光在铂背电极层和基板之间曲折传播，并增强钌染料的吸收。为了增强散射，我们在活性层中掺杂了20重量%的大直径二氧化钛。与标准DSSC相比，多层DSSC的效率提高了约15%。