Enhanced efficiency of tri-layered dye solar cells with hydrothermally synthesized titania nanotubes as light scattering outer layer

被引：14

作者：

Mathew, Ambily ^{[1
]}

Rao, G. Mohan ^{[1
]}

Munichandraiah, N. ^{[2
]}

机构：

[1] Indian Inst Sci, Dept Instrumentat & Appl Phys, Bangalore 560012, Karnataka, India

[2] Indian Inst Sci, Dept Inorgan & Phys Chem, Bangalore 560012, Karnataka, India

来源：

THIN SOLID FILMS | 2012年 / 520卷 / 09期

关键词：

Dye sensitized solar cell; Titania nanotube; Tri-layer; Light scattering layer; Electron transport resistance; ANATASE TIO2 NANOTUBES; CONVERSION-EFFICIENCY; PERFORMANCE; FABRICATION; SIZE;

D O I：

10.1016/j.tsf.2012.01.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present study dye sensitized solar cells (DSSCs) have been fabricated with a tri-layer photo anode consisting of hydrothermally prepared titania nano tubes (TNT) having a diameter of 9-10 nm and length of several micrometers as outer layer, P25 TiO2 powder as transparent light absorbing middle layer and a compact TiO2 inner layer to improve the adhesion of different layers on a transparent conducting oxide coated substrate. In comparison to cells fabricated using TNTs or P25 alone, the tri-layer DSSCs exhibit an enhanced efficiency of 7.15% with a current density of 17.12 mA cm(-2) under AM 1.5 illumination. The enhancement is attributed to the light scattering generated by TNTs aggregates, reduction in electron transport resistance at the TiO2/dye/electrolyte interface and an improvement in electron life-time. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：3581 / 3586

页数：6

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