不同形貌结构的Cu_3ZnInSnSe_6纳米晶的可控合成
详细信息 查看官网全文
- 英文论文题名：Facile synthesis of Cu_3ZnInSnSe_6 nanocrystals with different structures and shapes
- 论文作者：李德慧 ; 孙健 ; 赵雪 ; 马逍 ; 杨秀荣
- 英文论文作者：Dehui Li ; Jian Sun ; Xue Zhao ; Xiao Ma ; Xiurong Yang ; State Key Laboratory of Electroanalytical Chemistry ; Changchun Institute of Applied Chemistry ; Chinese Academy of Sciences ; University of Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院长春应用化学研究所;中国科学院大学;
- 论文关键词：Cu_3ZnInSnSe_6 ; 纳米晶 ; 可控合成
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十六分会：纳米材料合成与组装
- 语种：中文
- 分类号：TB383.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十六分会 ; 纳米材料合成与组装
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：163k
- 原文格式：D
- 会议级别：全国
摘要
可控合成半导体纳米晶一直是一个富有吸引力和挑战性的课题~1。最近,我们首次可控的合成了具有立方闪锌矿和六方纤锌矿结构的五元Cu_3ZnInSn Se_6纳米晶。在闪锌矿结构和纤锌矿结构中,金属离子无序的分布在阳离子的晶格上,这为化学计量控制提供了更大的灵活性,因此能够在更大范围调整费米能级,而这对于制作光伏电池是非常有利的~2。在实验中,我们发现向阳离子反应前驱体中加入Se源的顺序在决定产物的结构和形貌方面起着重要的作用。此外,纳米晶的光电性质表现出明显的结构依赖性。这项工作发展了一种可控合成亚稳结构含硒多元半导体纳米晶的新方法。
Controllable synthesis of semiconductor nanocrystals is an attractive issue yet still remains challenging. Here, we describe our recent effort toward this direction by a simple colloidal method to engineer quinary Cu_3 ZnInSnSe_6(CZITSe) nanocrystals with different crystal phases and shapes for the first time. In our synthesis of CZITSe nanocrystals, the order of addition of the Se precursor to metal reactants solution plays a major role in the resulting crystal structure of the final product. Furthermore, the morphology of the CZITSe nanocrystals also changes from bullet to triangle shape when it undergoes the alternation of crystal structure. In addition, the optical and electrical behavior of the resultant nanocrystals exhibits obvious structure-dependent properties. This work will open exciting new avenues to explore the controllable synthesis of multicomponent semiconductor nanocrystals containing Se with metastable structures.
Controllable synthesis of semiconductor nanocrystals is an attractive issue yet still remains challenging. Here, we describe our recent effort toward this direction by a simple colloidal method to engineer quinary Cu_3 ZnInSnSe_6(CZITSe) nanocrystals with different crystal phases and shapes for the first time. In our synthesis of CZITSe nanocrystals, the order of addition of the Se precursor to metal reactants solution plays a major role in the resulting crystal structure of the final product. Furthermore, the morphology of the CZITSe nanocrystals also changes from bullet to triangle shape when it undergoes the alternation of crystal structure. In addition, the optical and electrical behavior of the resultant nanocrystals exhibits obvious structure-dependent properties. This work will open exciting new avenues to explore the controllable synthesis of multicomponent semiconductor nanocrystals containing Se with metastable structures.
引文
[1]Zhang,J.;Huang,F.;Lin,Z.Nanoscale.2010,2:18.
[2]Connor,S.T.;Hsu,C.M.;Weil,B.D.;Aloni,S.;Cui,Y.J.Am.Chem.Soc.2009,131,4962.
[2]Connor,S.T.;Hsu,C.M.;Weil,B.D.;Aloni,S.;Cui,Y.J.Am.Chem.Soc.2009,131,4962.