Issue 7, 2011
From the journal:

CrystEngComm

Synthesis of CdS nanorods and nanospheres: shape tuning by the controlled addition of a sulfide precursor at room temperature†

T. Shanmugapriya,a   R. Vinayakan,b   K. George Thomasb  and  P. Ramamurthy*a  

* Corresponding authors

a National Centre for Ultrafast Processes, University of Madras, Taramani Campus, Chennai, India
E-mail: prm60@hotmail.com

b Photosciences and Photonics, National Institute for Interdisciplinary Science and Technology (CSIR), Trivandrum, India

Abstract

Shape tuning of CdS nanocrystals (NCs) by controlled growth and stabilization by tetraoctyl ammonium bromide ligands in non-aqueous medium is thoroughly investigated in this report. CdS nanorods and nanospheres were synthesized by manipulating the addition rate of the sulfide precursor. A higher addition rate (10 mL min−1) of the precursor yields nanorods and a lower addition rate (1 mL min−1) of the precursor yields nanospheres whereas an addition rate (7 mL min−1) in between these two addition rate yields a mixture of nanorods and nanospheres. The investigation further revealed that an optimum concentration of stabilising agent decides the shape, whereas the precursor mole ratio does not play any significant role in shape tuning. The band edge and trap state emission of the NCs synthesized were analysed by time resolved emission studies.

Graphical abstract: Synthesis of CdS nanorods and nanospheres: shape tuning by the controlled addition of a sulfide precursor at room temperature

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Article information

DOI
https://doi.org/10.1039/C0CE00374C
Article type
Paper
Submitted
05 Jul 2010
Accepted
29 Nov 2010
First published
27 Jan 2011

CrystEngComm, 2011,13, 2340-2345

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Synthesis of CdS nanorods and nanospheres: shape tuning by the controlled addition of a sulfide precursor at room temperature

T. Shanmugapriya, R. Vinayakan, K. G. Thomas and P. Ramamurthy, CrystEngComm, 2011, 13, 2340 DOI: 10.1039/C0CE00374C

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