Open AccessSilver Nanoparticle-Doped Titanium Oxide Thin Films for Intermediate Layers in Organic Tandem Solar Cell
Author(s) -
Wanyi Nie,
Robert C. Coffin,
David Carroll
Publication year - 2013
Publication title -
international journal of photoenergy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.426
H-Index - 51
eISSN - 1687-529X
pISSN - 1110-662X
DOI - 10.1155/2013/829463
Subject(s) - tandem , materials science , doping , nanoparticle , trapping , pedot:pss , organic solar cell , open circuit voltage , solar cell , charge carrier , nanotechnology , layer (electronics) , work function , optoelectronics , chemical engineering , polymer , voltage , composite material , ecology , physics , quantum mechanics , engineering , biology
In this work we investigate the Ag nanoparticle doping of TiOx used as an intermediate layer between subcells of a tandem organic photovoltaic. We use a model polymer cell structure of P3HT:TiOx:PEDOT:P3HT to observe charge-trapping effects as a function of nanoparticle content in the TiOx, as determined by the shape of the dark and illuminated current voltage curves of the devices. There is a direct correlation between the amount of Ag nanoparticles in the TiOx, and interfacial charge buildup, and charge trapping being completely mitigated at around 0.2% mol. This suggests that such doping schemes might provide a simple approach to the creation and use of TiOx layers for tandem cells
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