A new inorganic-organic composite of CuS/pyridine with unique sub-nanostructures.
Bur-like microspheres and microwires of CuS/pyridine composites were synthesized by a solvothermal method. The spheres or wires composed of a large number of nanoflakes with thickness of 10-20 nm and length of hundreds nanometers. Sub-nanostructures can be observed in the nanoflakes by the high-resolution transmission electron microscopy (HR-TEM) patterns. A large blue shift of band-gap absorption of CuS was observed in the composites, which was attributed to quantum confinement effect (QCE) induced by the sub-nanostructures. Pure Cu9S5 microspheres and CuS/Cu9S5 microwires were obtained by extracting the inorganic-organic composites with ethylene glycol. Possible formation mechanisms were discussed.
Key Laboratory of Excited State Physics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 16 Eastern South-Lake Road, Changchun 130033, PR China.
Libo
L
Fan
Hongwei
H
Song
Lina
L
Liu
Haifeng
H
Zhao
Guohui
G
Pan
Jiuxing
J
Jiang
Biao
B
Dong
Xue
X
Bai