Effects of 200MeV silver ion irradiation on the optical properties of gallium phosphide

被引：3
|
作者：
Jadhav, Vidya [1 ]
Kirkire, M. D. [1 ]
Dubey, S. K. [1 ]
Yadav, A. D. [1 ]
Singh, A. [1 ]
Singh, F. [2 ]
Kanjilal, D. [2 ]
机构：
[1] Univ Bombay, Dept Phys, Bombay 400098, Maharashtra, India
[2] Inter Univ Accelerator Ctr, New Delhi 110067, India
来源：
RADIATION EFFECTS AND DEFECTS IN SOLIDS | 2013年 / 168卷 / 7-8期
关键词：
swift silver ion; gallium phosphide; spectroscopic ellipsometry; atomic force microscopy; RAMAN-SCATTERING; GAP;
D O I：
10.1080/10420150.2013.789028
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The effects of irradiation of 200MeV silver ions on gallium phosphide with various fluences varying from 1x10(11) to 2x10(13)ionscm(-2) were investigated with spectroscopic ellipsometry and atomic force microscopy (AFM) measurements. The refractive index and extinction coefficient measured in ultraviolet, visible and infrared regimes were found to vary with ion fluence. The optical energy band gaps of the irradiated samples estimated from the absorption coefficient were found to vary from 2.27 to 2.19eV with increase in ion fluence. The surface morphology of non-irradiated and samples irradiated with various fluences was examined using AFM. As ion fluence increases, the nano-size hills were developed on the surface of gallium phosphide. The shape, size, density of hills and r.m.s. roughness of the samples irradiated with various ion fluences were found to depend on the ion fluence.
引用
收藏
页码：564 / 570
页数：7
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