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低温热处理对电子辐照直拉硅中V(O缺陷的影响

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Abstract:

采用能量为1.5MeV、辐照温度为100℃、辐照剂量为1.8×1018e/cm2电子辐照直拉单晶硅;然后对电子辐照样品进行不同温度和时间的低温(200~600℃)热处理。通过辐照样品的Fourier变换红外光谱研究了热处理后样品中的空位-氧相关缺陷的转化情况。结果表明未经热处理的电子辐照的硅样品中出现了空位-双氧复合体(VO2)缺陷的889cm-1吸收峰,这是由于辐照温度较高所致。经低温热处理后,在氧含量较低的辐照样品中的VO和VO2缺陷会相互转化,而氧含量较高的样品中VO、VO2吸收峰强度几乎不变。VO2和空位-三氧复合体(VO3)缺陷在450℃热处理30min后呈现出一定的稳定性。

References

[1]  ANTONOVA I V, GULYEV M B, SAFRONOV L N, et al. Competition between thermal donors and thermal acceptors in electron-irradiated silicon annealed at 400-700 ℃[J]. Microelectron Eng, 2003, 66: 385-391. [2] CROITORU N, GUBBINI E, RATTAGGI M. Radiation damage induced in n-type silicon by ions and neutrons [J]. Nucl Phys B, 1999, 78: 657-661. [3] CUI Can, YANG Deren, MA Xiangyang, et al. Oxygen precipitation in neutron-irradiated Czochralski silicon annealed at elevated temperature [J]. Phys Status Solidi A, 2005, 202: 2442-2447. [4] 马巧云, 陈贵锋, 马晓薇, 等. 快中子辐照直拉硅中的氧沉淀及诱生缺陷[J]. 硅酸盐学报, 2010, 38(10): 73-76. MA Qiaoyun, CHEN Guifeng, Ma Xiaowei, et al. J Chin Ceram Soc (in Chinese), 2010, 38(10): 73-76. [5] GEBAUER J, EICHLER S, KRAUSE-REHBERG R, et al. Characterization of vacancy-like defects in boron-implanted silicon with slow positrons [J]. Appl Surf Sci, 1997, 116: 215-221. [6] KUHNKE M, FRETWURST E, LINDSTROEM G. Defect generation in crystalline silicon irradiated with high energy particles [J]. Nucl Instrum Methods Phys Res B, 2002, 186: 144-151. [7] YANG Shuai, LI Yangxian, MA Qiaoyun, et al. Infrared absorption spectrum studies of the VO defect in fast-neutron-irradiated Czochralski silicon [J]. J Cryst Growth, 2005, 280: 60-65. [8] VORONKOV V V, FALSTER R. Effect of vacancies on nucleation of oxide precipitates in silicon [J]. Mater Sci Semicond Process, 2003, 5: 387-390. [9] LINDSTROM J L, MURIN L I. Defect engineering in Czochralski silicon by electron irradiation at different temperatures [J]. Nucl Instrum Methods Phys Res B, 2002, 186: 121-125. [10] CORBETT J W, WATKINS G D, MCDONALD R S. New oxygen infrared bands in annealed irradiated silicon [J]. Phys Rev A, 1964, 135: 1381-1385.

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