Giant enhancement of band edge emission in ZnO and SnO nanocomposites.
ZnO/SnO nanocomposites have been designed to enhance the band edge emission and suppress the defect emission of ZnO nanorods simultaneously. It is found that the intensity ratio between the band edge and defect emission can be improved by up to 4 orders of magnitude. The underlying mechanism is interpreted in terms of surface modification as well as carrier transfer from SnO nanoparticles to ZnO nanorods. Our approach is very useful for creating highly efficient optoelectronic devices.
Lin
Jian Ming
JM
Department of Physics, National Taiwan University, Taipei 106, Taiwan.
Cheng
Chung Liang
CL
Lin
Hsia Yu
HY
Chen
Yang Fang
YF