NDLI: CdS quantum dot-sensitized solar cells based on nano-branched TiO2 arrays.

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CdS quantum dot-sensitized solar cells based on nano-branched TiO2 arrays.

Content Provider	Europe PMC
Author	Liu, Chang Li, Yitan Wei, Lin Wu, Cuncun Chen, Yanxue Mei, Liangmo Jiao, Jun
Copyright Year	2014
Abstract	Nano-branched rutile TiO2 nanorod arrays were grown on F:SnO2 conductive glass (FTO) by a facile, two-step wet chemical synthesis process at low temperature. The length of the nanobranches was tailored by controlling the growth time, after which CdS quantum dots were deposited on the nano-branched TiO2 arrays using the successive ionic layer adsorption and reaction method to make a photoanode for quantum dot-sensitized solar cells (QDSCs). The photovoltaic properties of the CdS-sensitized nano-branched TiO2 solar cells were studied systematically. A short-circuit current intensity of approximately 7 mA/cm2 and a light-to-electricity conversion efficiency of 0.95% were recorded for cells based on optimized nano-branched TiO2 arrays, indicating an increase of 138% compared to those based on unbranched TiO2 nanorod arrays. The improved performance is attributed to a markedly enlarged surface area provided by the nanobranches and better electron conductivity in the one-dimensional, well-aligned TiO2 nanorod trunks.
ISSN	19317573
Journal	Nanoscale Research Letters
Volume Number	9
PubMed Central reference number	PMC3975883
Issue Number	1
PubMed reference number	24597830
e-ISSN	1556276X
DOI	10.1186/1556-276x-9-107
Language	English
Publisher	Springer
Publisher Date	2014-03-04
Access Restriction	Open
Rights License	This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. Copyright © 2014 Liu et al.; licensee Springer.
Subject Keyword	TiO2 CdS Nanobranch Solar cells
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Condensed Matter Physics Materials Science

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