Colloidal synthesis of ternary AgFeS2 nanocrystals and their transformation to Ag2S-Fe7S8 heterodimers

Shi-Kui Han; Chao Gu; Ming Gong; Ze-Ming Wang; Shu-Hong Yu

doi:10.1002/smll.201300268

Colloidal synthesis of ternary AgFeS2 nanocrystals and their transformation to Ag2S-Fe7S8 heterodimers

Small. 2013 Nov 25;9(22):3765-9. doi: 10.1002/smll.201300268. Epub 2013 May 5.

Authors

Shi-Kui Han¹, Chao Gu, Ming Gong, Ze-Ming Wang, Shu-Hong Yu

Affiliation

¹ Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Lab of Mechanical and Material Science, School of Engineering Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China, Fax: +86 551 63603040.

PMID: 23650281
DOI: 10.1002/smll.201300268

Abstract

Ternary-/hetero-nanocrystals: a facile one-pot colloidal route for controlled synthesis of ternary AgFeS2 nanocrystals, which have a band gap of 1.21 eV, is presented for the first time. Such ternary AgFeS2 nanocrystals can transform to Ag2 S-Fe7 S8 heterodimers by internal thermal reaction at elevated temperature, providing a new route to synthesize semiconductor hetero-nanostructures.

Keywords: Ag2S; AgFeS2; Fe7S8; hetero-nanostructures; internal thermal reaction.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Colloids / chemistry*
Nanoparticles / chemistry*
Nanostructures / chemistry*
Silver Compounds / chemistry*

Substances

Colloids
Silver Compounds
silver sulfide