Issue 38, 2015

Synthesis of colloidal InSb nanocrystals via in situ activation of InCl3

Abstract

Indium antimonide (InSb), a narrow band gap III–V semiconductor is a promising infrared-active material for various optoelectronic applications. Synthetic challenge of colloidal InSb nanocrystals (NCs) lies in the limited choice of precursors. Only a few successful synthetic schemes involving highly toxic stibine (SbH3) or air- and moisture-sensitive metal silylamides (In[N(Si-(Me)3)2]3 or Sb[N(Si-(Me)3)2]3) as the precursor have been reported. We found that commercially available precursors InCl3 and Sb[NMe2]3 directly form highly crystalline colloidal InSb nanocrystals in the presence of a base such as LiN(SiMe3)2 or nBuLi. The mean size of the particles can be controlled by simply changing the activating base. This approach offers a one-pot synthesis of InSb NCs from readily available chemicals without the use of complex organometallic precursors.

Graphical abstract: Synthesis of colloidal InSb nanocrystals via in situ activation of InCl3

Supplementary files

Article information

Article type
Paper
Submitted
09 Jun 2015
Accepted
25 Aug 2015
First published
25 Aug 2015

Dalton Trans., 2015,44, 16923-16928

Synthesis of colloidal InSb nanocrystals via in situ activation of InCl3

S. Tamang, K. Kim, H. Choi, Y. Kim and S. Jeong, Dalton Trans., 2015, 44, 16923 DOI: 10.1039/C5DT02181B

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