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Quantum‐Dot‐Sensitized Solar Cells
Author(s) -
Rühle Sven,
Shalom Menny,
Zaban Arie
Publication year - 2010
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201000069
Subject(s) - quantum dot , materials science , nanotechnology , nanorod , solar cell , energy conversion efficiency , optoelectronics , absorbance , dye sensitized solar cell , nanowire , mesoporous material , photovoltaic system , monolayer , quantum dot solar cell , photocurrent , electrolyte , electrode , polymer solar cell , optics , chemistry , ecology , biochemistry , biology , catalysis , physics
Quantum‐dot‐sensitized solar cells (QDSCs) are a promising low‐cost alternative to existing photovoltaic technologies such as crystalline silicon and thin inorganic films. The absorption spectrum of quantum dots (QDs) can be tailored by controlling their size, and QDs can be produced by low‐cost methods. Nanostructures such as mesoporous films, nanorods, nanowires, nanotubes and nanosheets with high microscopic surface area, redox electrolytes and solid‐state hole conductors are borrowed from standard dye‐sensitized solar cells (DSCs) to fabricate electron conductor/QD monolayer/hole conductor junctions with high optical absorbance. Herein we focus on recent developments in the field of mono‐ and polydisperse QDSCs. Stability issues are adressed, coating methods are presented, performance is reviewed and special emphasis is given to the importance of energy‐level alignment to increase the light to electric power conversion efficiency.