Ion implantation of Cd and Ag into AlN and GaN

被引：11
|
作者：
Miranda, S. M. C. [1 ]
Kessler, P. [2 ]
Correia, J. G. [1 ,3 ]
Vianden, R. [2 ]
Johnston, K. [4 ]
Alves, E. [1 ,3 ]
Lorenz, K. [1 ,3 ]
机构：
[1] Inst Tecnol & Nucl, Estr Nacl 10, P-2686953 Sacavem, Portugal
[2] Univ Bonn, Helmholtz Inst Strahlen Kernphysik, D-53115 Bonn, Germany
[3] Centro Fis Nucl Univ Lisbo, P-1649003 Lisbon, Portugal
[4] Univ Saarland, Technische Phys, D-66041 Saarbrucken, Germany
来源：
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 9, NO 3-4 | 2012年 / 9卷 / 3-4期
关键词：
III-nitrides; ion implantation; perturbed angular correlation; Rutherford backscattering/channelling; X-ray diffraction; SEMICONDUCTORS; TEMPERATURE;
D O I：
10.1002/pssc.201100203
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
GaN and AlN thin films were implanted with cadmium (Cd) or silver (Ag), to fluences ranging from 1x10(13) to 1.7 x 10(15) at/cm(2). The implanted samples were annealed at 950 degrees C under flowing nitrogen. While implantation damage could be fully removed for the lowest fluences, for higher fluences the crystal quality was only partially recovered. For the high fluence samples the lattice site location of the ions was studied by Rutherford Backscattering/channelling (RBS/C). Cd ions are found to be incorporated in substitutional cation sites (Al or Ga) while Ag is slightly displaced from this position. To further investigate the incorporation sites, Perturbed Angular Correlation (PAC) measurements were performed and the electric field gradients at the site of the probe nuclei were determined. (C) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：1060 / 1064
页数：5
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