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A New Microstructured DSC Photoelectrode for Potential High Power Conversion Efficiency
Author(s) -
Zhang QiFeng,
Park Kwangsuk,
Cao GuoZhong
Publication year - 2010
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201000159
Subject(s) - energy conversion efficiency , chemistry , adsorption , nanotechnology , dye sensitized solar cell , molecule , optoelectronics , chemical engineering , materials science , organic chemistry , electrode , engineering , electrolyte
This paper includes an overview of general approaches and efforts to enhance the power conversion efficiency in dye‐sensitized solar cells (DSC) and then the recent development of hierarchically structured photoelectrodes for DSC. Hierarchically structured photoelectrodes are made of submicron‐sized aggregates of ZnO nanocrystallites. Such structured photoelectrodes retain the desired large surface area and crystal facets for dye molecule adsorption and possess the ability to scatter the visible light within the photoelectrodes, so as to enhance light adsorption and thus lead to more efficient photon capturing. In ZnO DSC, hierarchically structured photoelectrodes demonstrated over 200% enhancement in power conversion efficiency.