Colloidal synthesis of wurtzite Cu2CoSnS4 nanocrystals and the photoresponse of spray-deposited thin films

Xiaoyan Zhang, Ningzhong Bao, Baoping Lin, Arunava Gupta

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

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 languageEnglish
Article number105706
JournalNanotechnology
Volume24
Issue number10
DOIs
StatePublished - 15 Mar 2013

Fingerprint

Dive into the research topics of 'Colloidal synthesis of wurtzite Cu2CoSnS4 nanocrystals and the photoresponse of spray-deposited thin films'. Together they form a unique fingerprint.

Cite this