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Narrow band gap lead sulfide hole transport layers for quantum dot photovoltaics

Abstract:

The band structure of colloidal quantum dot (CQD) bilayer heterojunction solar cells is optimized using a combination of ligand modification and QD band gap control. Solar cells with power conversion efficiencies of up to 9.33 ± 0.50% are demonstrated by aligning the absorber and hole transport layers (HTL). Key to achieving high efficiencies is optimizing the relative position of both the valence band and Fermi energy at the CQD bilayer interface. By comparing different band-gap CQDs with di...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1021/acsami.6b01018

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
More by this author
Institution:
University of Oxford
Oxford college:
Linacre College
Role:
Author
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Grant:
PlatformGrantNo.EP/F048009/1
EP/J009857/1
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Funding agency for:
Zhang, N
Grant:
01508060203
Publisher:
American Chemical Society Publisher's website
Journal:
ACS Applied Materials and Interfaces Journal website
Volume:
8
Issue:
33
Pages:
21417–21422
Publication date:
2016-07-15
Acceptance date:
2016-07-15
DOI:
EISSN:
1944-8252
ISSN:
1944-8244
Source identifiers:
636336
Language:
English
Keywords:
Pubs id:
pubs:636336
UUID:
uuid:2933db86-c696-4216-bc6b-c3ce43924550
Local pid:
pubs:636336
Deposit date:
2016-08-15

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