Document Detail

Preparation and properties of a carbon nanotube-based nanocomposite photoanode for dye-sensitized solar cells.
MedLine Citation:
PMID:  21832549     Owner:  NLM     Status:  In-Data-Review    
This study fabricates dye-sensitized solar cells (DSSCs) based on TiO(2)/multi-walled carbon nanotube (MWCNT) nanocomposite photoanodes obtained by the modified acid-catalyzed sol-gel procedure. Results show that incorporating MWCNTs into a TiO(2)-based electrode efficiently improves the physicochemical properties of the solar cell. The results of dye adsorption and cell performance measurements indicate that introducing MWCNTs would improve the roughness factor (from 834 to 1267) of the electrode and the charge recombination of electron/hole (e(-)/h(+)) pairs. These significant changes could lead to higher adsorbed dye quantities, photocurrent and DSSC cell performance. Nevertheless, a higher loading of MWCNTs causes light-harvesting competition that affects the light adsorption of the dye-sensitizer, and consequently reduces the cell efficiency. This study suggests an optimum MWCNT loading in the electrode of 0.3 wt%, and proposes a sol-gel synthesis procedure as a promising method of preparing the TiO(2)-based nanocomposite.
Chuan-Yu Yen; Yu-Feng Lin; Shu-Hang Liao; Cheng-Chih Weng; Ching-Chun Huang; Yi-Hsiu Hsiao; Chen-Chi M Ma; Min-Chao Chang; Hsin Shao; Ming-Chi Tsai; Chien-Kuo Hsieh; Chuen-Horng Tsai; Fang-Bor Weng
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Publication Detail:
Type:  Journal Article     Date:  2008-08-05
Journal Detail:
Title:  Nanotechnology     Volume:  19     ISSN:  0957-4484     ISO Abbreviation:  Nanotechnology     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2011-08-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  England    
Other Details:
Languages:  eng     Pagination:  375305     Citation Subset:  -    
Department of Chemical Engineering, National Tsing-Hua University, Hsin-Chu 30043, Taiwan, Republic of China.
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