Full spectrum enhancement of the light harvesting efficiency of dye sensitized solar cells by including colloidal photonic crystal multilayers

被引：87

作者：

Mihi, A. ^{[1
]}

Lopez-Alcaraz, F. J. ^{[1
]}

Miguez, H. ^{[1
]}

机构：

[1] CSIC, Inst Ciencia Mat Sevilla, Seville 41092, Spain

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 19期

关键词：

D O I：

10.1063/1.2200746

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Herein we report a theoretical analysis of the efficiency of dye sensitized solar cells in which colloidal crystals are introduced in different configurations. We find that piling up different lattice constant crystals leads to light harvesting enhancement in the whole dye absorption range. We provide the optimum structural features of such photonic crystal multilayer needed to achieve a photocurrent efficiency enhancement of around 60% with respect to standard dye sensitized solar cells. We demonstrate that this improvement is the result of the optical absorption amplification effect of slow photon resonant modes partially confined within the absorbing part of the cell by the mirror behavior of the colloidal superlattice. (c) 2006 American Institute of Physics.

引用

页数：3

共 15 条

[1] A PROGRAM FOR CALCULATING PHOTONIC BAND STRUCTURES AND TRANSMISSION COEFFICIENTS OF COMPLEX STRUCTURES [J].