Superionic conductor-mediated growth of ternary ZnCdS nanorods over a wide composition range

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• 作者：Yongliang Zhang ; Jing Cai ; Tianpei Ji ; Qiang Wu ; Yuyang Xu ; Xizhang Wang…
• 关键词：superionic conductor ; solution ; solid ; solid growth ; ternary Zn x Cd1?x S ; bandgap engineering
• 刊名：Nano Research
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：8
• 期：2
• 页码：584-591
• 全文大小：3,711 KB
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chinese Library of Science
  Chemistry
  Nanotechnology
  
• 出版者：Tsinghua University Press, co-published with Springer-Verlag GmbH
• ISSN：1998-0000

文摘

Composition regulation of semiconductors can engineer their bandgaps and hence tune their properties. Herein, we report the first synthesis of ternary Zn x Cd1?em class="a-plus-plus">x S semiconductor nanorods by superionic conductor (Ag2S)-mediated growth with [(C4H9)2NCS2]2M (M = Zn, Cd) as single-source precursors. The compositions of the Zn x Cd1?em class="a-plus-plus">x S nanorods are conveniently tuned over a wide range by adjusting the molar ratio of the corresponding precursors, leading to tunable bandgaps and hence the progressive evolution of the light absorption and photoluminescence spectra. The nanorods present well-distributed size and length, which are controlled by the uniform Ag2S nanoparticles and the fixed amount of the precursors. The results suggest the great potential of superionic conductor-mediated growth in composition regulation and bandgap engineering of chalcogenide nanowires/nanorods.