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

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 t...

Full description

Saved in:
Bibliographic Details
Published inAdvanced materials (Weinheim) Vol. 24; no. 47; pp. 6295 - 6299
Main Authors Ning, Zhijun, Ren, Yuan, Hoogland, Sjoerd, Voznyy, Oleksandr, Levina, Larissa, Stadler, Philipp, Lan, Xinzheng, Zhitomirsky, David, Sargent, Edward H.
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 11.12.2012
WILEY‐VCH Verlag
Subjects
colloidal nanoparticles
CQDs
optoelectronic materials
photovoltaics
Online AccessGet full text

Cover

More Information
Summary: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.
Bibliography:ArticleID:ADMA201202942
istex:94FAF06C1DCA6EEE989B71EFD1882A1117ED9AD1
ark:/67375/WNG-CH3ZGWMS-H
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201202942