Soluble precursors for CuInSe2, CuIn(1-x)Ga(x)Se2, and Cu2ZnSn(S,Se)4 based on colloidal nanocrystals and molecular metal chalcogenide surface ligands

Journal of the American Chemical Society
Chengyang JiangDmitri V Talapin

Abstract

We report a new platform for design of soluble precursors for CuInSe(2) (CIS), Cu(In(1-x)Ga(x))Se(2) (CIGS), and Cu(2)ZnSn(S,Se)(4) (CZTS) phases for thin-film potovoltaics. To form these complex phases, we used colloidal nanocrystals (NCs) with metal chalcogenide complexes (MCCs) as surface ligands. The MCC ligands both provided colloidal stability and represented essential components of target phase. To obtain soluble precursors for CuInSe(2), we used Cu(2-x)Se NCs capped with In(2)Se(4)(2-) MCC surface ligands or CuInSe(2) NCs capped with {In(2)Cu(2)Se(4)S(3)}(3-) MCCs. A mixture of Cu(2-x)Se and ZnS NCs, both capped with Sn(2)S(6)(4-) or Sn(2)Se(6)(4-) ligands was used for solution deposition of CZTS films. Upon thermal annealing, the inorganic ligands reacted with NC cores forming well-crystallized pure ternary and quaternary phases. Solution-processed CIS and CZTS films featured large grain size and high phase purity, confirming the prospects of this approach for practical applications.

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Citations

Jan 23, 2016·Nature Materials·Michael A BolesDmitri V Talapin
Nov 17, 2015·The Journal of Physical Chemistry Letters·Ryan CrispNikos Kopidakis
Sep 12, 2015·ACS Applied Materials & Interfaces·Yi HouChristoph J Brabec
May 3, 2016·ACS Applied Materials & Interfaces·Panagiota ArnouJake Bowers
Aug 6, 2016·Chemical Reviews·Simanta Kundu, Amitava Patra
Apr 11, 2017·Chemical Reviews·Claudia CoughlanKevin M Ryan
Apr 6, 2017·Scientific Reports·Hyekyoung ChoiSohee Jeong
Aug 21, 2013·Nature·Brian A Korgel
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Apr 14, 2015·Chemistry, an Asian Journal·Jun XuChun-Sing Lee
Jan 29, 2021·Journal of the American Chemical Society·Jia-Ahn PanDmitri V Talapin
Apr 16, 2013·Journal of the American Chemical Society·Wenbing YangYang Yang
Apr 8, 2014·Journal of the American Chemical Society·Jian-jun WangKevin M Ryan
Jan 23, 2015·ACS Nano·Maksym V KovalenkoWolfgang Heiss
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Jun 25, 2015·Chemical Reviews·Graham H CareyEdward H Sargent

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