Journal
ADVANCED MATERIALS
Volume 25, Issue 12, Pages 1719-1723Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201204502
Keywords
colloidal nanoparticles; CQDs; photovoltaics; optoelectronic materials
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Funding
- King Abdullah University of Science and Technology (KAUST) [KUS-11-009-21]
- Ontario Research Fund Research Excellence Program
- Natural Sciences and Engineering Research Council (NSERC) of Canada
- NSERC CGS D scholarship
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A novel approach to improving all-inorganic colloidal quantum dot (CQD) homojunction solar cells by engineering the doping spatial profile to produce a doping gradient within the n-type absorber is presented. The doping gradient greatly improves carrier collection and enhances the voltages attainable by the device, leading to a 1 power point power conversion efficiency (PCE) improvement over previous inorganic CQD solar cells. [GRAPHICS] .
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