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  1. Highly crystalline Fe2GeS4 nanocrystals: green synthesis and their structural and optical characterization
  2. High-density Cu–In intermetallic nanocrystal layers: towards high-efficiency printable CuInSe2 solar cells
  3. Solvent-free synthesis of Cu2ZnSnS4 nanocrystals: a facile, green, up-scalable route for low cost photovoltaic cells