Microwave-Enhanced Synthesis of Cu3Se2 Nanoplates and Assembly of Photovoltaic CdTe-Cu3Se2 Clusters

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• 作者：Xuebo Cao ; Cui Zhao ; Xianmei Lan ; Geijian Gao ; Wenhu Qian ; Yang Guo
• 刊名：Journal of Physical Chemistry C
• 出版年：2007
• 出版时间：May 10, 2007
• 年：2007
• 卷：111
• 期：18
• 页码：6658 - 6662
• 全文大小：379K
• 年卷期：v.111,no.18(May 10, 2007)
• ISSN：1932-7455

文摘

High-quality Cu₃Se₂ nanoplates were synthesized in a large scale through microwave-enhanced reaction betweenselenium and copper(I) oleate. The nanoplates are approximately round with thickness of 17 nm and thediameter in the range of 700~1000 nm. The distinct shape of the nanoplates provides an ideal site for combiningfunctional units, and as an example, carboxyl-terminated CdTe quantum dots were adsorbed onto Cu₃Se₂nanoplates to form Cu₃Se₂-CdTe nanocluster by the chemical linkage of carboxyl to Cu. The fabricatednanoclusters exhibit an enhanced photovoltaic property (i.e., large photocurrent and short response time).Furthermore, this work provides a rational method to the design and fabrication of quantum dots decoratedsemiconductor nanocomposites.