Excitation Intensity Dependence of Photoluminescence in a-C:H and a-C Films
LI Qingshan1, GUO Hua, MA Yurong, FANG Rongchuan, XU Cunyi2
Department of Physics, University of Science and Technology of China, Hefei 230026
1On leave from Qufu Normal University.
2Center of Structure and Element Analysis, University of Science and Technology of China, Hefei 230026
Excitation Intensity Dependence of Photoluminescence in a-C:H and a-C Films
LI Qingshan1;GUO Hua;MA Yurong;FANG Rongchuan;XU Cunyi2
Department of Physics, University of Science and Technology of China, Hefei 230026
1On leave from Qufu Normal University.
2Center of Structure and Element Analysis, University of Science and Technology of China, Hefei 230026
Abstract： We present the novel results of excitation intensity dependent photoluminescence (PL) in a-C:H and a-C thin films. Sublinear and superlinear phenomena of PL have been observed for a-C:H films. There are two PL bands in a-C films under lower excitation intensity. These results are qualitatively explained in the light of band tail state saturation and the contribution of gap states.
(Methods of deposition of films and coatings; film growth and epitaxy)
引用本文:
LI Qingshan;GUO Hua;MA Yurong;FANG Rongchuan;XU Cunyi. Excitation Intensity Dependence of Photoluminescence in a-C:H and a-C Films
[J]. 中国物理快报, 1991, 8(1): 48-51.
LI Qingshan, GUO Hua, MA Yurong, FANG Rongchuan, XU Cunyi. Excitation Intensity Dependence of Photoluminescence in a-C:H and a-C Films
. Chin. Phys. Lett., 1991, 8(1): 48-51.
1991, Vol. 8 
