All‐Inorganic Colloidal Quantum Dot Photovoltaics Employing Solution‐Phase Halide Passivation

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12 September 2012

journal article
research article
Published by Wiley in Advanced Materials

Vol. 24 (47) , 6295-6299
https://doi.org/10.1002/adma.201202942

Abstract

A new solution-phase halide passivation strategy to improve the electronic properties of colloidal quantum dot films is reported. We prove experimentally that the approach leads to an order-of-magnitude increase in mobility and a notable reduction in trap state density. We build solar cells having the highest efficiency (6.6%) reported using all-inorganic colloidal quantum dots. The improved photocurrent results from increased efficiency of collection of infrared-generated photocarriers.

Keywords

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