Colloidal Cu2ZnSn(SSe)4 (CZTSSe) Nanocrystals: Shape and Crystal Phase Control to Form Dots, Arrows, Ellipsoids, and Rods

被引：53
作者：
Singh, Shalini [1 ,2 ]
Liu, Pai [1 ,2 ]
Singh, Ajay [1 ,2 ]
Coughlan, Claudia [1 ,2 ]
Wang, Jianjun [1 ,2 ]
Lusi, Matteo [1 ,2 ]
Ryan, Kevin M. [1 ,2 ]
机构：
[1] Univ Limerick, Mat & Surface Sci Inst, Limerick, Ireland
[2] Univ Limerick, Dept Chem & Environm Sci, Limerick, Ireland
来源：
CHEMISTRY OF MATERIALS | 2015年 / 27卷 / 13期
基金：
爱尔兰科学基金会;
关键词：
CU2ZNSNSE4; NANOCRYSTALS; NANORODS; TERNARY; CUINSE2; GROWTH; RATIO;
D O I：
10.1021/acs.chemmater.5b01399
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Herein, we report shape control in the CZTSSe nanocrystal system by tuning the occurrence of polytypism between wurtzite and zinc-blende phases. We have isolated the key control factors in this system and show that the choice of solvents/surfactants and precursors and how they are introduced can allow shape control from dots to ellipsoids to arrows and rods. The shape evolution is dictated by independently controlling the respective growth rates of either the zinc-blende or wurtzite regions in the polytypic system. We further show the extension of this synthetic control to eliminate polytypism while retaining anisotropy allowing for single-phase wurtzite nanorods of CZTSSe.
引用
收藏
页码：4742 / 4748
页数：7
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