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Priya Kush, Sanjeev Kumar Ujjain, Dr. Navin Chand Mehra, Dr. Pika Jha, Dr. Raj Kishore Sharma and Dr. Sasanka Deka Development and Properties of Surfactant-Free Water-Dispersible Cu2ZnSnS4 Nanocrystals: A Material for Low-Cost Photovoltaics ChemPhysChem 14

Article first published online: 25 JUN 2013 | DOI: 10.1002/cphc.201300290

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Low-cost photovoltaics: Surfactant-free water-soluble Cu2ZnSnS4 nanocrystals are synthesized and characterized. The hydrothermal method employed is easy and inexpensive, and the environmentally friendly p-type semiconductor particles (nanocrystal ink) are stable for weeks in water. The high optical absorption (see picture), ease of annealing, and electrical properties suggest the Cu2ZnSnS4 nanocrystals could be a low-cost efficient absorbing material for use in solid-state solar cells.

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