Aqueous Synthesis of Cu2ZnSnSe4 Nanocrystals
Cameron Ritchie, Anthony Sidney Richard Chesman, Jacek Jasieniak, Paul Mulvaney
CHEMISTRY OF MATERIALS | AMER CHEMICAL SOC | Published : 2019
Copper zinc tin selenide (CZTSe) nanocrystal inks show promise as a candidate for developing cheap, scalable, efficient, and nontoxic photovoltaic devices. They also present an important opportunity to controllably mix copper zinc tin sulfide (CZTS) with CZTSe to produce directly spectrally tunable Cu 2 ZnSn(S/Se) 4 (CZTSSe) solid-solutions using low-temperature processes. Herein, we describe a one-pot, low-temperature, aqueous-based synthesis that employs simultaneous redox and crystal formation reactions to yield CZTSe nanocrystal inks stabilized by Sn 2 Se 76- and thiourea. This versatile CZTSe synthesis is understood through the use of inductively coupled plasma mass spectrometry, Raman ..View full abstract
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Awarded by ARC Centre of Excellence in Exciton Science
The authors thank the ARC Centre of Excellence in Exciton Science (CE170100026) for support. Electron microscopy was carried out at the Bio21 Advanced Microscopy Facility. PXRD was performed at the Materials Characterisation and Fabrication Platform (MCFP) at the University of Melbourne and the Victorian Node of the Australian National Fabrication Facility (ANFF).