Scalable Heating-Up Synthesis of Monodisperse Cu2ZnSnS4 Nanocrystals

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• 作者：Alexey Shavel ; Maria Ibá?ez ; Zhishan Luo ; Jonathan De Roo ; Alex Carrete ; Mirjana Dimitrievska ; Aziz Gen? ; Michaela Meyns ; Alejandro Pérez-Rodr??guez ; Maksym V. Kovalenko ; Jordi Arbiol ; Andreu Cabot
• 刊名：Chemistry of Materials
• 出版年：2016
• 出版时间：February 9, 2016
• 年：2016
• 卷：28
• 期：3
• 页码：720-726
• 全文大小：500K
• ISSN：1520-5002

文摘

Monodisperse Cu₂ZnSnS₄ (CZTS) nanocrystals (NCs), with quasi-spherical shape, were prepared by a facile, high-yield, scalable, and high-concentration heat-up procedure. The key parameters to minimize the NC size distribution were efficient mixing and heat transfer in the reaction mixture through intensive argon bubbling and improved control of the heating ramp stability. Optimized synthetic conditions allowed the production of several grams of highly monodisperse CZTS NCs per batch, with up to 5 wt?% concentration in a crude solution and a yield above 90%.