Dramatically Enhanced Photoresponse of Reduced Graphene Oxide with Linker-Free Anchored CdSe Nanoparticles

被引：214

作者：

Lin, Yue ^{[1
]}

Zhang, Kun ^{[1
]}

Chen, Wufeng ^{[2
]}

Liu, Yiding ^{[3
]}

Geng, Zhigang ^{[1
]}

Zeng, Jie ^{[1
]}

Pan, Nan ^{[1
]}

Yan, Lifeng ^{[1
]}

Wang, Xiaoping ^{[1
,4
]}

Hou, J. G. ^{[1
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China

[3] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China

[4] Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China

来源：

ACS NANO | 2010年 / 4卷 / 06期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

reduced graphene oxide; semiconductor nanoparticles; nanocomposite; charge transfer; photoresponse; optoelectronic; PHOTOINDUCED CHARGE-TRANSFER; NONLINEAR-OPTICAL-PROPERTIES; CARBON; NANOCRYSTALS; FILMS; NANOCOMPOSITES; TRANSPARENT; ASSEMBLIES; REDUCTION; NANOTUBES;

D O I：

10.1021/nn100134j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A linker-free connected reduced graphene oxide/CdSe nanoparticle (R-GO/CdSe NP) nanocomposite was produced by directly anchoring CdSe NPs onto R-GO. The morphological and structural characterizations evidence that the single-crystal CdSe NPs with the size of a few tens of nanometers can be efficiently decorated on the R-GO. The photoresponse of this nanocomposite is drastically enhanced compared with that of the pure CdSe NPs, the bare R-GO, and the physically mixed R-GO/CdSe NPs, while the photoluminescence of the CdSe NPs in the composite is much quenched, indicating that the photoinduced carriers generated from the CdSe NPs can be transferred to the R-GO effectively and separately. This ability makes the R-GO/CdSe NP nanocomposite a great promise for wide potential applications in optoelectronics.

引用

页码：3033 / 3038

页数：6

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