Academic Journals Database
Disseminating quality controlled scientific knowledge

Investigation into Photoconductivity in Single CNF/TiO2-Dye Core–Shell Nanowire Devices

ADD TO MY LIST
 
Author(s): Li Zhuangzhi | Rochford Caitlin | Javier Baca F | Liu Jianwei | Li Jun | Wu Judy

Journal: Nanoscale Research Letters
ISSN 1931-7573

Volume: 5;
Issue: 9;
Start page: 1480;
Date: 2010;
Original page

Keywords: Photoconductivity | Nanowire | Titanium dioxide | Dye-sensitized solar cell | Core–shell

ABSTRACT
Abstract A vertically aligned carbon nanofiber array coated with anatase TiO2 (CNF/TiO2) is an attractive possible replacement for the sintered TiO2 nanoparticle network in the original dye-sensitized solar cell (DSSC) design due to the potential for improved charge transport and reduced charge recombination. Although the reported efficiency of 1.1% in these modified DSSC’s is encouraging, the limiting factors must be identified before a higher efficiency can be obtained. This work employs a single nanowire approach to investigate the charge transport in individual CNF/TiO2 core–shell nanowires with adsorbed N719 dye molecules in dark and under illumination. The results shed light on the role of charge traps and dye adsorption on the (photo) conductivity of nanocrystalline TiO2 CNF’s as related to dye-sensitized solar cell performance.
Save time & money - Smart Internet Solutions     

Tango Rapperswil
Tango Rapperswil