Abstract
Monodisperse nanocrystals of a new wurtzite phase of Cu 2CoSnS4 (CCTS) have been synthesized using a simple solution-based method. The wurtzite CCTS nanocrystals grow in the shape of nanorods with an average length of 32 ± 2.0 and width of 16 ± 1.5 nm. The more stable stannite phase of CCTS has also been synthesized by increasing the reaction temperature or by a post-high-temperature annealing process. The band gap of wurtzite CCTS nanocrystals is determined to be 1.58 eV. Thin films prepared from the nanocrystal suspension display photoresponse behaviour with white light from a solar simulator, suggesting the potential use of CCTS as an active layer in low-cost thin-film solar cells.
Original language | English |
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Article number | 105706 |
Journal | Nanotechnology |
Volume | 24 |
Issue number | 10 |
DOIs | |
State | Published - 15 Mar 2013 |