碘化铟晶体本征缺陷的第一性原理研究

张伟; 徐朝鹏; 王海燕; 陈飞鸿; 何畅

doi:10.7498/aps.62.243101

摘要

采用基于密度泛函理论的第一性原理方法，对正交碘化铟（InI）晶体可能存在的6种本征点缺陷（碘空位、铟空位、碘占铟位、铟占碘位、碘间隙、铟间隙）结构进行优化. 通过缺陷形成能的计算，得出各缺陷在生长过程中形成的难易程度；通过态密度的计算，分析出各种缺陷能级位置及其对载流子传输的影响. 结果表明：最主要的低能缺陷铟间隙会引入复合中心和深空穴陷阱，前者降低少数载流子的寿命，后者俘获价带的空穴而降低空穴的迁移率-寿命积. 计算结果为实验中提高InI 晶体载流子的迁移率-寿命积提供理论指导，对获得性能优异的InI核辐射探测材料有重要帮助.

关键词:

Abstract

The structures of six possible native point defects (I and In vacancies, I and In antisites, I and In interstitials) that maybe exist in the orthorhombic indium iodide (InI) crystal are optimized and investigated by the first-principles calculations based on density functional theory. The levels of difficulty in forming defects in their growth processes are obtained by calculating the defect energy levels; the position of each kind of energy level of native point defect and its effect on carrier transport are analyzed via calculating the density of states. The results show that the dominant low-energy defect of In interstitial induces a recombination center and a deep hole trap: the former shortens the lifetime of the minority carriers and the latter captures the holes from the valence band, thereby reducing the mobility-lifetime product of the hole. The calculation results provide a theoretical guidance for improving the mobility-lifetime product of carriers in InI crystal and also are helpful in obtaining the excellent materials for detecting the nuclear radiation of InI crystal.

Keywords:

作者及机构信息

1.
燕山大学信息科学与工程学院, 河北省特种光纤与光纤传感重点实验室, 秦皇岛 066004;

2.
燕山大学环境与化学工程学院, 河北省应用化学重点实验室, 秦皇岛 066004;

3.
圣路易斯大学工业工程学院电子与计算机工程系, 美国圣路易斯 63103

基金项目: 河北省应用基础研究计划重点基础研究项目（批准号：13961103D）和中国电子科技集团公司第四十六研究所创新基金（批准号：CJ20120208）资助的课题.

Authors and contacts

1.
Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, College of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China;

2.
Key Laboratory of Applied Chemistry of Hebei Province, College of Environmental Science and Engineering, Yanshan University, Qinhuangdao 066004, China;

3.
Parks College of Engineering, Aviation and Technology, Electrical and Computer Engineering Department, Saint Louis University, Saint Louis 63103, U.S.A

Funds: Project supported by the Key Basic Research Project of the Applied Basic Research Programs of Hebei Province, China (Grant No. 13961103D) and the Innovation Project of the 46th Research Institute of China Electronics Technology Group Corporation, China (Grant No. CJ20120208).

参考文献

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[2]	Du M H, Singh D J 2010 Phys. Rev. B 82 045203
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[6]	Peretti E A 1956 J. Am. Chem. Soc. 78 5745
[7]	Levy F, Mooser E 1972 Helv. Phys. Acta 3 69
[8]	Ohno N, Fujita M, Nakai Y, Nakamura K 1978 Solid State Commun. 28 137
[9]	Nakamura K, Nobuhito O, Masami F, Yoshio N 1979 J. Lumin. 18-19 381
[10]	Shah K S, Moy L P, Zhang J, Misra M M, Moses W W 1992 SPIE 1734 161
[11]	Kolinko M I 1994 J. Phys. 6 183
[12]	Oondera T, Hitomi K, Shoji T 2006 IEEE Trans. Nucl. Sci. 50 3055
[13]	Nicoara I, Dicoara N, Bertorello C, Slack G A, Ostrogorsky A G, Groza M, Burger A 2011 Mater. Res. Soc. Symp. Proc. 1341 95
[14]	Jie W Q 2010 Principle and Technology of Crystal Growth (Beijing: Science Press) p577 (in Chinese) [介万奇2010晶体生长原理与技术(北京: 科学出版社) 第577页]
[15]	Zhukovskii Y F, Kotomin E A, Fuks D, Dorfman S 2004 Surf. Sci. 566 122
[16]	Chahed A, Benhelal O, Laksari S, Abbar B, Bouhafs B, Aourag H 2005 Physica B 367 142
[17]	Li G Q, Zhang X C, Ding G Y, Fan C M, Liang Z H, Han P D 2013 Acta Phys. Sin. 62 127301 (in Chinese) [李国旗, 张小超, 丁光月, 樊彩梅, 梁振海, 韩培德 2013 物理学报 62 127301]
[18]	Ye H G, Chen G D, Zhu Y Z, Zhang J W 2007 Acta Phys. Sin. 56 5376 (in Chinese) [耶红刚, 陈光德, 竹有章, 张俊武 2007 物理学报 56 5376]
[19]	Bourgoin J C, von Bardeleben H J, Stie-venard D 1988 J. Appl. Phys. 64 65
[20]	Zhang M, Zhang C H, Shen J 2011 Chin. Phys. B 20 017101
[21]	Wang A L, Wu Z M, Wang C, Hu A Y, Zhao R Y 2013 Acta Phys. Sin. 62 137101 (in Chinese) [王爱玲, 毋志民, 王聪, 胡爱元, 赵若禺 2013 物理学报 62 137101]
[22]	van de Walle C G, Neugebauer J 2004 J. Appl. Phys. Rev. 95 3851
[23]	Haynes W M 2011 Handbook of Chemistry and Physics (Boca Raton: CRC Press) pp5–14
[24]	Ding S F, Fan G H, Li S T, Xiao B 2007 Acta Phys. Sin. 56 4062 (in Chinese) [丁少锋, 范广涵, 李述体, 肖冰 2007物理学报 56 4062]
[25]	Biswas K, Du M H 2011 Appl. Phys. 109 113

施引文献

[1]	Runkle R C, Smith L E, Peurrung A J 2009 J. Appl. Phys. 106 041101
[2]	Du M H, Singh D J 2010 Phys. Rev. B 82 045203
[3]	Jin F, Itoh T, Goto T 1989 J. Phys. Soc. Jpn. 58 2586
[4]	Jones R E, Templeton D H 1955 Acta Crystallogr. 8 847
[5]	Zhang M G, Yan H Y, Zhang G T, Wei Q, Wang H 2011 Physica B 407 398
[6]	Peretti E A 1956 J. Am. Chem. Soc. 78 5745
[7]	Levy F, Mooser E 1972 Helv. Phys. Acta 3 69
[8]	Ohno N, Fujita M, Nakai Y, Nakamura K 1978 Solid State Commun. 28 137
[9]	Nakamura K, Nobuhito O, Masami F, Yoshio N 1979 J. Lumin. 18-19 381
[10]	Shah K S, Moy L P, Zhang J, Misra M M, Moses W W 1992 SPIE 1734 161
[11]	Kolinko M I 1994 J. Phys. 6 183
[12]	Oondera T, Hitomi K, Shoji T 2006 IEEE Trans. Nucl. Sci. 50 3055
[13]	Nicoara I, Dicoara N, Bertorello C, Slack G A, Ostrogorsky A G, Groza M, Burger A 2011 Mater. Res. Soc. Symp. Proc. 1341 95
[14]	Jie W Q 2010 Principle and Technology of Crystal Growth (Beijing: Science Press) p577 (in Chinese) [介万奇2010晶体生长原理与技术(北京: 科学出版社) 第577页]
[15]	Zhukovskii Y F, Kotomin E A, Fuks D, Dorfman S 2004 Surf. Sci. 566 122
[16]	Chahed A, Benhelal O, Laksari S, Abbar B, Bouhafs B, Aourag H 2005 Physica B 367 142
[17]	Li G Q, Zhang X C, Ding G Y, Fan C M, Liang Z H, Han P D 2013 Acta Phys. Sin. 62 127301 (in Chinese) [李国旗, 张小超, 丁光月, 樊彩梅, 梁振海, 韩培德 2013 物理学报 62 127301]
[18]	Ye H G, Chen G D, Zhu Y Z, Zhang J W 2007 Acta Phys. Sin. 56 5376 (in Chinese) [耶红刚, 陈光德, 竹有章, 张俊武 2007 物理学报 56 5376]
[19]	Bourgoin J C, von Bardeleben H J, Stie-venard D 1988 J. Appl. Phys. 64 65
[20]	Zhang M, Zhang C H, Shen J 2011 Chin. Phys. B 20 017101
[21]	Wang A L, Wu Z M, Wang C, Hu A Y, Zhao R Y 2013 Acta Phys. Sin. 62 137101 (in Chinese) [王爱玲, 毋志民, 王聪, 胡爱元, 赵若禺 2013 物理学报 62 137101]
[22]	van de Walle C G, Neugebauer J 2004 J. Appl. Phys. Rev. 95 3851
[23]	Haynes W M 2011 Handbook of Chemistry and Physics (Boca Raton: CRC Press) pp5–14
[24]	Ding S F, Fan G H, Li S T, Xiao B 2007 Acta Phys. Sin. 56 4062 (in Chinese) [丁少锋, 范广涵, 李述体, 肖冰 2007物理学报 56 4062]
[25]	Biswas K, Du M H 2011 Appl. Phys. 109 113

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