Selective epitaxial growth of zinc blende-derivative on wurtzite-derivative: the case of polytypic Cu2CdSn(S1−xSex)4 nanocrystals

Liang Wu; Feng-Jia Fan; Ming Gong; Jin Ge; Shu-Hong Yu

doi:10.1039/C3NR04948E

Selective epitaxial growth of zinc blende-derivative on wurtzite-derivative: the case of polytypic Cu₂CdSn(S_1−xSe_x)₄ nanocrystals†

Liang Wu,‡^a Feng-Jia Fan,‡^a Ming Gong,^b Jin Ge^a and Shu-Hong Yu*^a

* Corresponding authors

^a Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, China
E-mail: shyu@ustc.edu.cn
Fax: +86-551-63603040
Tel: +86-551-63603040

^b Engineering and Materials Science Experiment Center, University of Science and Technology of China, Hefei 230026, P.R. China

Abstract

Polytypic nanocrystals with zinc blende (ZB) cores and wurtzite (WZ) arms, such as tetrapod and octopod nanocrystals, have been widely reported. However, polytypic nanocrystals with WZ cores and ZB arms or ends have been rarely reported. Here, we report a facile, solution-based approach to the synthesis of polytypic Cu₂CdSn(S_1−xSe_x)₄ (CCTSSe) nanocrystals with ZB-derivative selectively engineered on (000±2)_WZ facets of WZ-derived cores. Accordingly, two typical morphologies, i.e., bullet-like nanocrystals with a WZ-derivative core and one ZB-derivative end, and rugby ball-like nanocrystals with a WZ-derivative core and two ZB-derivative ends, can be selectively prepared. The epitaxial growth mechanism is confirmed by the time-dependent experiments. The ratio of rugby ball-like and bullet-like polytypic CCTSSe nanocrystals can be tuned through changing the amount of Cd precursor to adjust the reactivity difference between (0002)_WZ and (000−2)_WZ facets. These unique polytypic CCTSSe nanocrystals may find applications in energetic semiconducting materials for energy conversion in the future.

Supplementary files

Article information

DOI: https://doi.org/10.1039/C3NR04948E
Article type: Paper
Submitted: 16 Sep 2013
Accepted: 15 Dec 2013
First published: 20 Dec 2013

Download Citation

Nanoscale, 2014,6, 3418-3422

Permissions

Request permissions

Selective epitaxial growth of zinc blende-derivative on wurtzite-derivative: the case of polytypic Cu₂CdSn(S_1−xSe_x)₄ nanocrystals

L. Wu, F. Fan, M. Gong, J. Ge and S. Yu, Nanoscale, 2014, 6, 3418 DOI: 10.1039/C3NR04948E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Nanoscale

Selective epitaxial growth of zinc blende-derivative on wurtzite-derivative: the case of polytypic Cu₂CdSn(S_1−xSe_x)₄ nanocrystals†

Abstract

Supplementary files

Article information

Download Citation

Permissions

Selective epitaxial growth of zinc blende-derivative on wurtzite-derivative: the case of polytypic Cu₂CdSn(S_1−xSe_x)₄ nanocrystals

Social activity

Search articles by author

Spotlight

Advertisements

Nanoscale