Doping Control Via Molecularly Engineered Surface Ligand Coordination

A means to control the net doping of a CQD solid is identified via the design of the bidentate ligand crosslinking the material. The strategy does not rely on implementing different atmospheres at different steps in device processing, but instead is a robust strategy implemented in a single processi...

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Bibliographic Details
Published inAdvanced materials (Weinheim) Vol. 25; no. 39; pp. 5586 - 5592
Main Authors Yuan, Mingjian, Zhitomirsky, David, Adinolfi, Valerio, Voznyy, Oleksandr, Kemp, Kyle W., Ning, Zhijun, Lan, Xinzheng, Xu, Jixian, Kim, Jin Young, Dong, Haopeng, Sargent, Edward H.
Format Journal Article
LanguageEnglish
Published Germany Blackwell Publishing Ltd 18.10.2013
Subjects
colloidal quantum dots
Construction
depleted heterojunction
Devices
Doping
Electric potential
High current
Ligands
photovoltaics
Strategy
surface ligands
Voltage
doping
depleted heterojunction
surface ligands
colloidal quantum dots
photovoltaics
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Summary:A means to control the net doping of a CQD solid is identified via the design of the bidentate ligand crosslinking the material. The strategy does not rely on implementing different atmospheres at different steps in device processing, but instead is a robust strategy implemented in a single processing ambient. We achieve an order of magnitude difference in doping that allows us to build a graded photovoltaic device and maintain high current and voltage at maximum power‐point conditions.
Bibliography:NSERC CGS D Scholarship
istex:4D9784165E637FD1F862BBF770FCD0784E0BDCF6
ark:/67375/WNG-Z3C0L64F-S
ArticleID:ADMA201302802
M.Y. and D.Z. contributed equally to this work.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0935-9648
1521-4095
DOI:10.1002/adma201302802