University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Enhanced conversion efficiency of flexible dye-sensitized solar cells by optimization of the nanoparticle size with an electrophoretic deposition technique

Xue, Zhaosheng, Zhang, Wei, Yin, Xiong, Cheng, Yueming, Wang, Long and Liu, Bin (2012) Enhanced conversion efficiency of flexible dye-sensitized solar cells by optimization of the nanoparticle size with an electrophoretic deposition technique RSC Advances, 2 (18).

[img]
Preview
Text
Enhanced conversion efficiency.pdf - Version of Record
Available under License Creative Commons Attribution.

Download (631kB) | Preview

Abstract

To optimize the conversion efficiency of plastic dye-sensitized solar cells fabricated by the electrophoretic deposition technique, anatase TiO2 nanoparticles of various sizes from 10 nm to 27 nm have been synthesized via a simple hydrothermal process. The obtained TiO2 nanoparticles have been characterized by X-ray diffraction and high resolution transmission electron microscopy, which confirmed that the synthesized nanoparticles are in the pure anatase phase. Rigid devices based on D149-sensitized TiO2 particles with a size of 19 nm showed the highest conversion efficiency of 7.0% among the four different devices, which was measured under illumination of AM 1.5G, 100 mWcm−2. The effect of the particle size on the photovoltaic performance of DSSCs has been systemically studied using photoelectrochemical characterizations, including intensity modulated photocurrent spectroscopy and intensity modulated photovoltage spectroscopy. The good photovoltaic performance for 19 nm TiO2 is ascribed to the good dye loading, an efficient electron transport and the high charge collection efficiency in the photoanode. Moreover, plastic DSSCs based on 19 nm TiO2 presented a conversion efficiency of 6.0% (AM 1.5G, 100 mWcm−2) under optimized conditions, showing about a 20% enhancement in the conversion efficiency as compared to that based on commercial Degussa P25 TiO2 (5.2%). These results demonstrate that optimization of the TiO2 nanoparticle size for devices fabricated using the EPD technique is an alternative method to achieve highly efficient plastic dye-sensitized solar cells.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Xue, ZhaoshengUNSPECIFIEDUNSPECIFIED
Zhang, Weiwz0003@surrey.ac.ukUNSPECIFIED
Yin, XiongUNSPECIFIEDUNSPECIFIED
Cheng, YuemingUNSPECIFIEDUNSPECIFIED
Wang, LongUNSPECIFIEDUNSPECIFIED
Liu, BinUNSPECIFIEDUNSPECIFIED
Date : 28 May 2012
Identification Number : 10.1039/C2RA20542D
Copyright Disclaimer : ©� The Royal Society of Chemistry 2012
Depositing User : Clive Harris
Date Deposited : 02 Jun 2017 10:01
Last Modified : 05 Jun 2017 09:33
URI: http://epubs.surrey.ac.uk/id/eprint/841275

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800