Formation of chelating agent driven anodized TiO2 nanotubular membrane and its photovoltaic application

被引：29

作者：

Banerjee, Subarna ^{[1
]}

Misra, Mano ^{[1
]}

Mohapatra, Susanta K. ^{[1
]}

Howard, Cameron ^{[1
]}

Mohapatra, Srikanta K. ^{[2
]}

Kamilla, Sushanta K. ^{[3
]}

机构：

[1] Univ Nevada, Reno, NV 89557 USA

[2] NM Inst Engn & Technol, Bhubaneswar 751009, Orissa, India

[3] Inst Tech Educ & Res, Bhubaneswar 751030, Orissa, India

来源：

NANOTECHNOLOGY | 2010年 / 21卷 / 14期

关键词：

SENSITIZED SOLAR-CELLS; TITANIA NANOTUBES; ARRAYS; WATER; HYDROGEN; ANODIZATION; FABRICATION; GENERATION; EFFICIENCY; TRANSPORT;

D O I：

10.1088/0957-4484/21/14/145201

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Titania (TiO2) nanotubular arrays provide an exciting material for dye sensitizing solar cells (DSSC) because of their large surface area, lower recombination losses, and fast charge transport properties along the nanotubes. In this paper, design of a next generation DSSC using a TiO2 nanotubular membrane is discussed. A single step, green process is developed to produce stable large area, free-standing TiO2 nanotubular films (in a short time, 30-60 min) by anodizing Ti using an organic electrolyte, containing disodium salt of ethylene diaminetetraacetic acid (Na-2[H(2)EDTA]) as complexing agent, and subsequent drying. Transparent, crack-free TiO2 films, 20-41 mu m thick containing ordered hexagonal TiO2 nanotubes are achieved by this process. Films having a geometrical area up to 16.5 cm(2) with pore openings of 182 nm have been obtained. These films have been etched to form membranes which provide an exciting prospect for front side illuminated DSSC with good mass and photon transport properties as well as wettability. A photovoltaic efficiency of 2.7% is achieved using a front side illuminated DSSC compared to 1.77% using back side illumination.

引用

页数：9

共 42 条

[1] Self-organized, free-standing TiO2 nanotube membrane for flow-through photocatalytic applications [J].