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Doping Control Via Molecularly Engineered Surface Ligand Coordination
Author(s) -
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.
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma201302802
Subject(s) - materials science , doping , ligand (biochemistry) , photovoltaic system , nanotechnology , optoelectronics , electrical engineering , biochemistry , chemistry , receptor , engineering
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.