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

作者：Lin Yue; Zhang Kun; Chen Wufeng; Liu Yiding; Geng Zhigang; Zeng Jie; Pan Nan^*; Yan Lifeng; Wang Xiaoping; Hou J G

来源：ACS Nano, 2010, 4(6): 3033-3038.

DOI：10.1021/nn100134j

• reduced graphene oxide
• semiconductor nanoparticles
• nanocomposite
• charge transfer
• photoresponse
• optoelectronic

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.

• 出版日期2010-6
• 单位中国科学技术大学