Document Detail


Long-lived charge separated states in nanostructured semiconductor photoelectrodes for the production of solar fuels.
MedLine Citation:
PMID:  23023269     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The efficient use of sunlight to drive the production of solar fuels requires the photogeneration of suitably long-lived charge separated states capable of driving the multi-electron chemistry of fuel synthesis. Here we discuss a range of promising material design approaches to increasing charge carrier lifetimes, focusing upon semiconductor photoelectrodes for water photolysis and carbon dioxide reduction. Parallels are drawn between the strategies deployed in the development of such artificial systems and those found in natural photosynthesis. We address the use of a range of junctions, including electrolyte/semiconductor, semiconductor/semiconductor and dye sensitized interfaces to provide the spatial separation of charges. A key consideration of the review is the design of such interfaces to achieve a sufficient increase in charge carrier lifetime with a high quantum yield, whilst minimising the energy loss associated with this lifetime gain.
Authors:
Alexander J Cowan; James R Durrant
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-28
Journal Detail:
Title:  Chemical Society reviews     Volume:  -     ISSN:  1460-4744     ISO Abbreviation:  Chem Soc Rev     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-10-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0335405     Medline TA:  Chem Soc Rev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, UK. a.cowan@imperial.ac.uk j.durrant@imperial.ac.uk.
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