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Title: Facile photochemical synthesis of graphene-Pt nanoparticle composite for counter electrode in dye sensitized solar cell
Authors: Tjoa, Verawati
Chua, Julianto
Pramana, Stevin Snellius
Wei, Jun
Mhaisalkar, Subodh Gautam
Mathews, Nripan
Issue Date: 2012
Source: Tjoa, V., Chua, J., Pramana, S. S., Wei, J., Mhaisalkar, S. G., & Mathews, N. (2012). Facile Photochemical Synthesis of Graphene-Pt Nanoparticle Composite for Counter Electrode in Dye Sensitized Solar Cell. ACS Applied Materials & Interfaces, 4(7), 3447-3452.
Series/Report no.: ACS applied materials & interfaces
Abstract: A low temperature route to synthesize graphene oxide–Pt nanoparticle hybrid composite by light assisted spontaneous coreduction of graphene oxide and chloroplatinic acid without reducing agent is demonstrated. Analysis indicates the importance of light as energy provider and ethanol as hole scavenger in the formation of small Pt nanoparticles (3 nm) on graphene oxide as well as graphene oxide reduction. Spray coating was used to deposit the hybrid material as a counter electrode in dye sensitized solar cells (DSCs). An efficiency of 6.77% for the hybrid graphene counter electrode has been obtained, higher than the control device made by low temperature sputtered Pt as counter electrode. Compatibility of the hybrid material with flexible plastic substrates was demonstrated yielding DSCs of an efficiency of 4.05%.
ISSN: 1944-8244
DOI: 10.1021/am300437g
Rights: © 2012 American Chemical Society.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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