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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 2
BKCSDE 35(2)
February 20, 2014 
 
Title
 Surface Modification of TiO2 Nanoparticles with Phenyltrimethoxysilane in Dye-sensitized Solar Cells
Author
 Yong-June Chang, Byung-Gon Kum, Yoon-Cheol Park, Eui-Hyun Kong, Hyun Myung Jang*
Keywords
 Dye-sensitized solar cells, Surface modification, TiO2
Abstract
 Phenyltrimethoxysilane (PTMS) was anchored onto the sensitized TiO2 nanoparticles. This insulating molecular layer effectively inhibited the charge recombination at the interface of TiO2/electrolyte in the dye–sensitized solar cells (DSCs) without sacrificing the dye-loading capacity of the nanocrystalline TiO2. DSCs using PTMSmodified TiO2 exhibited a short-circuit current (JSC) of 15.9 mA/cm2, an open-circuit voltage (VOC) of 789 mV, and a fill factor (FF) of 68.2%, yielding an overall conversion efficiency () of 8.55% under 100 mW/cm2 illumination. The resulting cell efficiency was improved by ~10% as compared with the reference cell.
Page
 415 - 418
Full Text
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