Graded doping for enhanced colloidal quantum dot photovoltaics.
basic_science · Level V
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- Record sourced from PubMed, PMID 23381974.
- Also identified by DOI 10.1002/adma.201204502.
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Abstract
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.