Mn高掺杂浓度对ZnO禁带宽度和吸收光谱影响的第一性原理研究

侯清玉; 董红英; 迎春; 马文

doi:10.7498/aps.62.037101

摘要

采用密度泛函理论框架下的第一性原理平面波超软赝势方法, 建立了未掺杂与不同浓度的Mn原子取代Zn原子的三种Zn1-xMnxO超胞模型, 分别对模型进行了几何结构优化、态密度分布、能带分布和吸收光谱的计算. 结果表明: 电子非自旋极化处理的条件下, Mn掺杂浓度越小, ZnO形成能越小, 掺杂越容易, 晶体结构越稳定; Mn的掺入使得ZnO体系的杂质能带和导带发生简并化, 并且导带底和价带底同时向低能方向移动, 掺杂后的导带比价带下降得少导致禁带宽度变宽, ZnO吸收光谱明显出现蓝移现象, 计算结果和实验结果相一致. 同时, 电子自旋极化处理的条件下, 体系有磁性, 吸收光谱发生红移现象. 计算结果与相关实验结果相符合.

关键词:

Abstract

According to the density functional theory, using first-principles plane-wave ultrasoft pseudopotential method, we set three different concentration Mn doped ZnO models, and perform the geomertry optimizations for the three modes. The total density of states, the band structures and the optical absorption are also calculated. The results show that in the case of non-spin state, the smaller the doping concentration of Mn is, the smaller the formation energy of ZnO is and the easier the Mn doping is, thus the stabler the crystal struetuer is; the Mn doping leads to the degenerations of the impurity energy band and the conduction band, and also to the optical absorption blue-shift. These calculation results accord with the experimental results. Moreover, the magnetism exists in the system under the situation of spin polarization, the absorption spectrum has a red-shift, which is consistent with the experimental result.

Keywords:

作者及机构信息

1.
内蒙古工业大学理学院物理系, 呼和浩特 010051;

2.
内蒙古工业大学化工学院, 呼和浩特 010051;

3.
内蒙古工业大学材料学院, 呼和浩特 010051

基金项目: 国家自然科学基金 (批准号: 51062012)、教育部春晖计划和内蒙古自治区自然科学基金 (批准号: 2010MS0801, 2010BS0604) 资助的课题.

Authors and contacts

1.
College of Sciences, Inner Mongolia University of Technology, Hohhot 010051, China;

2.
Schooe of Chemistry Engineering, Hohhot 010051, China;

3.
Material Science, Inner Mongolia University of Technology, Hohhot 010051, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 51062012), the Natural Science Foundation of Inner Mongolia Autonomous Region, China (Grant Nos. 2010MS0801, 2010BS0604), and the Natural Inner Mongolia Autonomous Region of College of Science and Technology Research Project China (Grant No. NJ10073)

参考文献

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[2]	Razali R, Zak A K, Majid W H A, Darroudi M 2011 Ceram Int. 37 3657
[3]	Vinodkumar R, Lethy K J, Beena D, Detty A P, Navas I, Nayar U V, Pillai V P M, Ganesan V, Reddy V R 2010 Sol. Energy Mater. Sol. Cells 94 68
[4]	Karamdel J, Dee C F, Majlis B Y 2010 Appl. Surf. Sci. 256 6164
[5]	Ye N, Chen C C 2012 Opt. Mater. 34 753
[6]	Mera J, Doria J, Co'rdoba C, Paredes O, Go'mez A, Paucar C, Fuchs D, Mora'n O 2010 Physica B 405 3463
[7]	Cheng X M, Chien C L 2003 J. Appl. Phys. 93 7876
[8]	Yan X L, Hu D, Li H S, Li L X, Chong X Y, Wang Y D 2011 Physica B 406 3956
[9]	Shinde V R, Gujar T P, Lokhande C D, Mane R S, Han S H 2006 Mater. Chem. Phys. 96 326
[10]	Yun S Y, Cha G B, Kwon Y, Cho S, Hong S C 2004 J. Magn. Mater. 272-276 1563
[11]	Mounkachi O, Benyoussef A, Kenz A E, Saidi E H, Hlil E K 2008 J. Magn. Mater. 320 2760
[12]	Wang Q, Jena P 2004 Appl. Phys. Lett. 84 4170
[13]	Chen K, Fan G H, Zhang Y 2008 Acta Phys. Sin. 57 1054 (in Chinese) [陈琨, 范广涵, 章勇 2009 57 1054]
[14]	Osuch K, Lombardi E B, Gebicki W 2006 Phys. Rev. B 73 75202
[15]	Clark S J, Segall M D, Pickard C J, Hasnip P J, Probert M I J, Refson K, Payne M C 2005 Z. Kristallogr. 220 567
[16]	Cui X Y, Medvedeva J E, Delley B, Freeman A J, Newman N, Stampfl C 2005 Phys. Rev. Lett. 95 256404
[17]	Deng S H, Duan M Y, Xu M, He L 2011 Physica B 406 2314
[18]	Schleife A, Fuchs F, Furthmüller J 2006 J. Phys. Rev. B 73 245212
[19]	Robertson J, Xiong K, Clark S J 2006 Phys. Status Solidi (b) 243 2054
[20]	Lu J G, Fujita S, Kawaharamura T, Nishinaka H, Kamada Y, Ohshima T, Ye Z Z, Zeng Y J, Zhang Y Z, Zhu L P, He H P, Zhao B H 2007 J. Appl. Phys. 101 083705
[21]	Lu J G, Fujita S, Kawaharamura T T, Nishinaka H, Kamada Y, Ohshima T 2006 Appl. Phys. Lett. 89 262107
[22]	Gu X Q, Zhu L P, Ye Z Z, Ma Q B, He H P, Zhang Y Z, Zhao B H 2008 Sol. Energy Mater. Sol. Cells 92 343
[23]	Hossain F M, Sheppard L, Nowotny J, Murch G E 2008 J. Phys. Chem. Sol. 69 182
[24]	Xu H Y, Liu Y C, Xu C S, Liu Y X, Shao C L, Mu R 2006 J. Chem. Phys. 124 074707
[25]	Zhao Y Z, Chen C L, Gao G M, Yang X G, Yuan X, Song Z M 2006 Acta. Phys. Sin. 55 3132 (in Chinese) [赵跃智, 陈长乐, 高国棉, 杨晓光, 袁孝, 宋宙模 2006 55 3132]
[26]	Sharma P, Gupta A, Owens F J, Inoue A, Rao K V 2004 J. Magn. Magn. Mater. 282 115
[27]	Kwang J K, Young R P 2003 J. Appl. Phys. 94 2
[28]	Kim K J, Park Y R 2003 J. Appl. Phys. 94 867

施引文献

[1]	Yu A, Qian J S, Pan H, Cui Y M, Xu M G, Tu L, Chai Q L, Zhou X F 2011 Sensor Actuat. B 158 9
[2]	Razali R, Zak A K, Majid W H A, Darroudi M 2011 Ceram Int. 37 3657
[3]	Vinodkumar R, Lethy K J, Beena D, Detty A P, Navas I, Nayar U V, Pillai V P M, Ganesan V, Reddy V R 2010 Sol. Energy Mater. Sol. Cells 94 68
[4]	Karamdel J, Dee C F, Majlis B Y 2010 Appl. Surf. Sci. 256 6164
[5]	Ye N, Chen C C 2012 Opt. Mater. 34 753
[6]	Mera J, Doria J, Co'rdoba C, Paredes O, Go'mez A, Paucar C, Fuchs D, Mora'n O 2010 Physica B 405 3463
[7]	Cheng X M, Chien C L 2003 J. Appl. Phys. 93 7876
[8]	Yan X L, Hu D, Li H S, Li L X, Chong X Y, Wang Y D 2011 Physica B 406 3956
[9]	Shinde V R, Gujar T P, Lokhande C D, Mane R S, Han S H 2006 Mater. Chem. Phys. 96 326
[10]	Yun S Y, Cha G B, Kwon Y, Cho S, Hong S C 2004 J. Magn. Mater. 272-276 1563
[11]	Mounkachi O, Benyoussef A, Kenz A E, Saidi E H, Hlil E K 2008 J. Magn. Mater. 320 2760
[12]	Wang Q, Jena P 2004 Appl. Phys. Lett. 84 4170
[13]	Chen K, Fan G H, Zhang Y 2008 Acta Phys. Sin. 57 1054 (in Chinese) [陈琨, 范广涵, 章勇 2009 57 1054]
[14]	Osuch K, Lombardi E B, Gebicki W 2006 Phys. Rev. B 73 75202
[15]	Clark S J, Segall M D, Pickard C J, Hasnip P J, Probert M I J, Refson K, Payne M C 2005 Z. Kristallogr. 220 567
[16]	Cui X Y, Medvedeva J E, Delley B, Freeman A J, Newman N, Stampfl C 2005 Phys. Rev. Lett. 95 256404
[17]	Deng S H, Duan M Y, Xu M, He L 2011 Physica B 406 2314
[18]	Schleife A, Fuchs F, Furthmüller J 2006 J. Phys. Rev. B 73 245212
[19]	Robertson J, Xiong K, Clark S J 2006 Phys. Status Solidi (b) 243 2054
[20]	Lu J G, Fujita S, Kawaharamura T, Nishinaka H, Kamada Y, Ohshima T, Ye Z Z, Zeng Y J, Zhang Y Z, Zhu L P, He H P, Zhao B H 2007 J. Appl. Phys. 101 083705
[21]	Lu J G, Fujita S, Kawaharamura T T, Nishinaka H, Kamada Y, Ohshima T 2006 Appl. Phys. Lett. 89 262107
[22]	Gu X Q, Zhu L P, Ye Z Z, Ma Q B, He H P, Zhang Y Z, Zhao B H 2008 Sol. Energy Mater. Sol. Cells 92 343
[23]	Hossain F M, Sheppard L, Nowotny J, Murch G E 2008 J. Phys. Chem. Sol. 69 182
[24]	Xu H Y, Liu Y C, Xu C S, Liu Y X, Shao C L, Mu R 2006 J. Chem. Phys. 124 074707
[25]	Zhao Y Z, Chen C L, Gao G M, Yang X G, Yuan X, Song Z M 2006 Acta. Phys. Sin. 55 3132 (in Chinese) [赵跃智, 陈长乐, 高国棉, 杨晓光, 袁孝, 宋宙模 2006 55 3132]
[26]	Sharma P, Gupta A, Owens F J, Inoue A, Rao K V 2004 J. Magn. Magn. Mater. 282 115
[27]	Kwang J K, Young R P 2003 J. Appl. Phys. 94 2
[28]	Kim K J, Park Y R 2003 J. Appl. Phys. 94 867

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