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深圳大学光电工程学院 光电子器件与系统(教育部/广东省)重点实验室,广东 深圳,518060
收稿日期:2013-05-09,
修回日期:2013-05-31,
纸质出版日期:2013-09-10
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武红磊, 郑瑞生, 李萌萌, 闫征, 郑伟. 碳硅共掺杂p型AlN的光电性能研究[J]. 发光学报, 2013,34(9): 1199-1202
WU Hong-lei, ZHENG Rui-sheng, LI Meng-meng, YAN Zheng, ZHENG Wei. Photoelectrical Performance of p-type AlN Crystal Codoped by Si and C[J]. Chinese Journal of Luminescence, 2013,34(9): 1199-1202
武红磊, 郑瑞生, 李萌萌, 闫征, 郑伟. 碳硅共掺杂p型AlN的光电性能研究[J]. 发光学报, 2013,34(9): 1199-1202 DOI: 10.3788/fgxb20133409.1199.
WU Hong-lei, ZHENG Rui-sheng, LI Meng-meng, YAN Zheng, ZHENG Wei. Photoelectrical Performance of p-type AlN Crystal Codoped by Si and C[J]. Chinese Journal of Luminescence, 2013,34(9): 1199-1202 DOI: 10.3788/fgxb20133409.1199.
在SiC衬底上生长了碳硅共掺杂p型AlN晶体
通过X射线衍射、X射线光电子能谱(XPS)、光致发光(PL)光谱、霍尔测试对碳硅共掺杂p型AlN晶体的结构、光学及电学性能进行了综合研究。通过XPS测试分析(尤其是对样品中Si 2p和C 1s的XPS谱分析)发现
样品中C替代N成为受主
而Si替代Al成为施主。样品的PL谱主要包括两个特征发射峰
分别来自于C、Si在AlN中形成的复合物V
N
-C
N
和C
N
-Si
Al
。
p-type AlN crystals by C and Si codoping were grown on SiC substrates by the sublimation method. The structural
optical and electronic properties of the samples were investigated by XRD
XPS
PL and Hall-effect measurement. The XPS analysis
especially about binding energies of Si 2p and C 1s peaks
reveals that in AlN crystals
C replaces N as an accepter and Si replaces Al as a donor. In PL spectroscopy
two main emission peaks are observed. Combined the structure and composition of AlN and related theoretical results
the two peaks are attributed to the complexes of V
N
-C
N
and C
N
-Si
Al
respectively.
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