Dramatically enhanced photoresponse of reduced graphene oxide with linker-free anchored CdSe nanoparticles.
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.
Lin
Yue
Y
Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
Zhang
Kun
K
Chen
Wufeng
W
Liu
Yiding
Y
Geng
Zhigang
Z
Zeng
Jie
J
Pan
Nan
N
Yan
Lifeng
L
Wang
Xiaoping
X
Hou
J G
JG
D019187:Cadmium Compounds / Q000737:chemistry* / Q000528:radiation effects; D003460:Crystallization / Q000379:methods*; D006108:Graphite / Q000737:chemistry* / Q000528:radiation effects; D008027:Light; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure; D036103:Nanotechnology / Q000379:methods; D010087:Oxides / Q000737:chemistry / Q000528:radiation effects; D010316:Particle Size; D012666:Semiconductors; D013440:Sulfides / Q000737:chemistry* / Q000528:radiation effects; D013499:Surface Properties
D019187:Cadmium Compounds; D046911:Macromolecular Substances; D010087:Oxides; D013440:Sulfides; C034939:cadmium sulfide; D006108:Graphite