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基于第一性原理的密度泛函理论对V, N单掺杂和V-N共掺杂ZnO的电子结构和光学性质进行了对比研究. 结果表明:三种掺杂均在可见光区域出现光吸收增强的现象, 其中V-N共掺最为明显; 结合能的计算发现V-N共掺的ZnO体系相对V, N单掺而言结构更稳定, 因此V-N共掺的ZnO是一种稳定而有效的光催化剂. 进一步研究表明, 阴-阳离子共掺的形式可以很好地应用于光电化学领域, 并可以制备出高性能稳定的短波光电材料.
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关键词:
- 基于ZnO的光催化剂 /
- 电子结构 /
- 光催化性质
Based on density functional theory of first-principle theory, we systematically investigate the electronic structure and optical property of V-, N- monodoping and V-N codopiong and compare with pure ZnO. The results show that the absorption in the visible light region is enhanced for the doped system, especially for V-N codoped ZnO. The calculated biding energy indicates that the V-N codoping is the most stable system, thus, V-N codoped ZnO is considered as an ideal photocatalyst. Moreover, the method of anion-cation codoping could be better used in photoelectrochemistry and also in the preparation of stable and high performance short wavelength photoelectron devices.[1] Park T Y, Choi Y S, Kim S M, Jung G Y, Park S J, Kwon B J, Cho Y H 2011 Appl. Phys. Lett. 98 251111
[2] Leung Y H, He Z B, Luo L B, Tsang C H A, Wong N B, Zhang W J, Lee S T 2010 Appl. Phys. Lett. 96 053102
[3] Wang G, Chu S, Zhan N, Lin Y, Chernyak L, Liu J L 2011 Appl. Phys. Lett. 98 041107
[4] Olad A, Nosrati R 2012 Res. Chem. Intermed. 38 323
[5] Wei S Y, Wang Z G, Yang Z X 2007 Chin. Phys. Lett. 24 800
[6] Hou Q Y, Zhao C W, Jin Y J 2009 Acta Phys. Sin. 58 7136 (in Chinese) [侯清玉, 赵春旺, 金永军 2009 58 7136]
[7] Sans J A, Sánchez-Royo J F, Segura A, Tobias G, Canadell E 2009 Phys. Rev. B 79 195105
[8] Lai H H, Kuznetsov V L, Egdell R, Edwards P P 2012 Appl. Phys. Lett. 100 072106
[9] Li L Y, Wang W H, Liu H, Liu X D, Song Q G, Ren S W 2009 J. Phys. Chem. C 113 8460
[10] Wu C, Shen L, Yu H G, Zhang Y C, Huang Q L 2012 Mater. Lett. 74 236
[11] Chen L C, Tu Y J, Wang Y S, Kan R S, Huang C M 2008 J. Photochem. Photobiol. A 199 170
[12] Shinde S S, Bhosale C H, Rajpure K Y 2012 J. Photochem. Photobiol. B 113 70
[13] Shinde S S, Rajpure K Y 2012 J. Alloys Compd. 522 118
[14] Liu W W, Yao B, Zhang Z Z, Li Y F, Li B H, Shan C X, Zhang J Y, Shen D Z, Fan X W 2011 J. Appl. Phys. 109 093518
[15] Duan M Y, Xu M, Zhou H P, Chen Q Y, Hu Z G, Dong C J 2008 Acta Phys. Sin. 57 6520 (in Chinese) [段满益, 徐明, 周海平, 陈青云, 胡志刚, 董成军 2008 57 6520]
[16] van de Pol F C M 1990 Cerarn. Bull. 69 1959
[17] Ye Y H, Lü B, Zhang W G, Huang H W, Ye Z Z 2012 Acta Phys. Sin. 61 048401 (in Chinese) [叶颖惠, 吕斌, 张维广, 黄宏文, 叶志镇 2012 61 048401]
[18] Hu X Y, Tian H W, Song L J, Zhu P W, Qiao L 2012 Acta Phys. Sin. 61 056102 (in Chinese) [胡小颖, 田宏伟, 宋立军, 朱品文, 乔靓 2012 61 056102]
[19] Xie F W, Yang P, Li P, Zhang L Q 2012 Opt. Commun. 285 2660
[20] Zhao Z Y, Liu Q J, Zhu Z Q, Zhang J 2008 Acta Phys. Sin. 57 3760 (in Chinese) [赵宗彦, 柳清菊, 朱忠其, 张瑾 2008 57 3760]
[21] Zhang X J, Gao P, Liu Q J 2010 Acta Phys. Sin. 59 4930 (in Chinese) [张学军, 高攀, 柳清菊 2010 59 4930]
[22] Liang P, Wang L, Xiong S Y, Dong Q M, Li X Y 2012 Acta Phys. Sin. 61 053101 (in Chinese) [梁培, 王乐, 熊斯雨, 董前民, 李晓艳 2012 61 053101]
[23] Wang D Y, Gao S X, Li G, Zhao M 2010 Acta Phys. Sin. 59 3473 (in Chinese) [王德义, 高书霞, 李刚, 赵鸣 2010 59 3473]
[24] Zong Y, Zhao Q 2008 Catal. Lett. 124 111
[25] Hendry E, Koeberg M, O'Regan B, Bonn M 2006 Nano Lett. 6 755
[26] Wang L W, Meng L J, Teixeira V, Song S G, Xu Z, Xu X R 2009 Thin Solid. Films 517 3721
[27] Yang X Y, Wolcott A, Wang G M, Sobo A, Fitzmorris R C, Qian F, Zhang J Z, Li Y 2009 Nano Lett. 9 2331
[28] Segall M D, Lindan P J D, Probert M J 2002 J. Phys. Cond. Matt. 14 2717
[29] Saha S, Sinha T P 2000 Phys. Rev. B 62 8828
[30] Gao G Y, Yao K L, Liu Z L, Li Y L, Li Y C, Liu Q M 2006 Solid. State. Commun. 138 494
[31] Qiu Y C, Yan K Y, Deng H, Yang S H 2012 Nano Lett. 12 407
[32] Duan X M, Stampfl C, Bilek M M M, McKenzie D R 2009 Phys. Rev. B 79 235208
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[1] Park T Y, Choi Y S, Kim S M, Jung G Y, Park S J, Kwon B J, Cho Y H 2011 Appl. Phys. Lett. 98 251111
[2] Leung Y H, He Z B, Luo L B, Tsang C H A, Wong N B, Zhang W J, Lee S T 2010 Appl. Phys. Lett. 96 053102
[3] Wang G, Chu S, Zhan N, Lin Y, Chernyak L, Liu J L 2011 Appl. Phys. Lett. 98 041107
[4] Olad A, Nosrati R 2012 Res. Chem. Intermed. 38 323
[5] Wei S Y, Wang Z G, Yang Z X 2007 Chin. Phys. Lett. 24 800
[6] Hou Q Y, Zhao C W, Jin Y J 2009 Acta Phys. Sin. 58 7136 (in Chinese) [侯清玉, 赵春旺, 金永军 2009 58 7136]
[7] Sans J A, Sánchez-Royo J F, Segura A, Tobias G, Canadell E 2009 Phys. Rev. B 79 195105
[8] Lai H H, Kuznetsov V L, Egdell R, Edwards P P 2012 Appl. Phys. Lett. 100 072106
[9] Li L Y, Wang W H, Liu H, Liu X D, Song Q G, Ren S W 2009 J. Phys. Chem. C 113 8460
[10] Wu C, Shen L, Yu H G, Zhang Y C, Huang Q L 2012 Mater. Lett. 74 236
[11] Chen L C, Tu Y J, Wang Y S, Kan R S, Huang C M 2008 J. Photochem. Photobiol. A 199 170
[12] Shinde S S, Bhosale C H, Rajpure K Y 2012 J. Photochem. Photobiol. B 113 70
[13] Shinde S S, Rajpure K Y 2012 J. Alloys Compd. 522 118
[14] Liu W W, Yao B, Zhang Z Z, Li Y F, Li B H, Shan C X, Zhang J Y, Shen D Z, Fan X W 2011 J. Appl. Phys. 109 093518
[15] Duan M Y, Xu M, Zhou H P, Chen Q Y, Hu Z G, Dong C J 2008 Acta Phys. Sin. 57 6520 (in Chinese) [段满益, 徐明, 周海平, 陈青云, 胡志刚, 董成军 2008 57 6520]
[16] van de Pol F C M 1990 Cerarn. Bull. 69 1959
[17] Ye Y H, Lü B, Zhang W G, Huang H W, Ye Z Z 2012 Acta Phys. Sin. 61 048401 (in Chinese) [叶颖惠, 吕斌, 张维广, 黄宏文, 叶志镇 2012 61 048401]
[18] Hu X Y, Tian H W, Song L J, Zhu P W, Qiao L 2012 Acta Phys. Sin. 61 056102 (in Chinese) [胡小颖, 田宏伟, 宋立军, 朱品文, 乔靓 2012 61 056102]
[19] Xie F W, Yang P, Li P, Zhang L Q 2012 Opt. Commun. 285 2660
[20] Zhao Z Y, Liu Q J, Zhu Z Q, Zhang J 2008 Acta Phys. Sin. 57 3760 (in Chinese) [赵宗彦, 柳清菊, 朱忠其, 张瑾 2008 57 3760]
[21] Zhang X J, Gao P, Liu Q J 2010 Acta Phys. Sin. 59 4930 (in Chinese) [张学军, 高攀, 柳清菊 2010 59 4930]
[22] Liang P, Wang L, Xiong S Y, Dong Q M, Li X Y 2012 Acta Phys. Sin. 61 053101 (in Chinese) [梁培, 王乐, 熊斯雨, 董前民, 李晓艳 2012 61 053101]
[23] Wang D Y, Gao S X, Li G, Zhao M 2010 Acta Phys. Sin. 59 3473 (in Chinese) [王德义, 高书霞, 李刚, 赵鸣 2010 59 3473]
[24] Zong Y, Zhao Q 2008 Catal. Lett. 124 111
[25] Hendry E, Koeberg M, O'Regan B, Bonn M 2006 Nano Lett. 6 755
[26] Wang L W, Meng L J, Teixeira V, Song S G, Xu Z, Xu X R 2009 Thin Solid. Films 517 3721
[27] Yang X Y, Wolcott A, Wang G M, Sobo A, Fitzmorris R C, Qian F, Zhang J Z, Li Y 2009 Nano Lett. 9 2331
[28] Segall M D, Lindan P J D, Probert M J 2002 J. Phys. Cond. Matt. 14 2717
[29] Saha S, Sinha T P 2000 Phys. Rev. B 62 8828
[30] Gao G Y, Yao K L, Liu Z L, Li Y L, Li Y C, Liu Q M 2006 Solid. State. Commun. 138 494
[31] Qiu Y C, Yan K Y, Deng H, Yang S H 2012 Nano Lett. 12 407
[32] Duan X M, Stampfl C, Bilek M M M, McKenzie D R 2009 Phys. Rev. B 79 235208
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