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By using the first-principles calculation based on density functional theory, we propose some approaches to improving the efficiency for the photocatalyst Ag2ZnSnS4 from a theoretical aspect. Comparing its band edge positions with those of other similar compounds, we find that Cu, Ge codoping can adjust both the band gaps and band edge positions of Ag2ZnSnS4 at the same time, which can optimize its band structure for water splitting. In addition, Ag2ZnSnS4 has a type-Ⅱ band offset with another photocatalyst CuGaSe2. Preparation of its homojunction can also improve their efficiencies of photocatalysis hydrolyzation.
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Keywords:
- photocatalyst /
- Ag2ZnSnS4 /
- band offset /
- electronic structure optimization
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[2] Tong H, Ouyang S X, Bi Y P, Umezawa N, Oshikiri M, Ye J H 2012 Adv. Mater. 24 229
[3] Ping Y, Rocc D, Galli G 2013 Chem. Soc. Rev. 42 2437
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[40] Chen S Y, Walsh A, Gong X G, Wei S H 2013 Adv. Mater. 25 1522
[41] Chen S Y, Gong X G, Walsh A, Wei S H 2010 Appl. Phys. Lett. 96 021902
[42] Shi L, Yin P Q 2013 Dalton Trans. 42 13607
[43] Khyzhun O Y, Ocheretova V A, Fedorchuk A O, Parasyuk O V 2014 Opt. Mater. 36 1396
[44] Marsen B, Cole B, Miller E L 2008 Sol. Energy Mater. Sol. Cells 92 1054
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[1] Chen X B, Shen S H, Guo L J, Mao S S 2010 Chem. Rev. 110 6503
[2] Tong H, Ouyang S X, Bi Y P, Umezawa N, Oshikiri M, Ye J H 2012 Adv. Mater. 24 229
[3] Ping Y, Rocc D, Galli G 2013 Chem. Soc. Rev. 42 2437
[4] van de Walle C G, Neugebauer J 2003 Nature 423 626
[5] Gai Y Q, Li J B, Li S S, Xia J B, Wei S H 2009 Phys. Rev. Lett. 102 036402
[6] Khaselev O, Turner J A 1998 Science 280 425
[7] Yin W J, Tang H W, Wei S H, Al-Jassim M M, Turner J, Yan Y F 2010 Phys. Rev. B 82 045106
[8] Chen X B, Mao S S 2007 Chem. Rev. 107 2891
[9] Li Z B, Wang X, Fan S W 2014 Acta Phys. Sin. 63 157102 (in Chinese) [李宗宝, 王霞, 樊帅伟 2014 物理学报 63 157102]
[10] Li Z B, Wang X, Jia L C 2013 Acta Phys. Sin. 62 203103 (in Chinese) [李宗宝, 王霞, 贾礼超 2013 物理学报 62 203103]
[11] Zheng S K, Wu G H, Liu L 2013 Acta Phys. Sin. 62 043102 (in Chinese) [郑树凯, 吴国浩, 刘磊 2013 物理学报 62 043102]
[12] Li W, Wei S H, Duan X M 2014 Chin. Phys. B 23 027305
[13] Wang Q, Liang J F, Zhang R H, Li Q, Dai J F 2013 Chin. Phys. B 22 057801
[14] Zhang K, Guo L J 2013 Catal. Sci. Technol. 3 1672
[15] Wang C H, Cheng K W, Tseng C J 2011 Sol. Energy Mater. Sol. Cells 95 453
[16] Tseng C J, Wang C H, Cheng K W 2012 Sol. Energy Mater. Sol. Cells 96 33
[17] Wang H L, Zhang L S, Chen Z G, Hu J Q, Li S J, Wang Z H, Liu J S, Wang X C 2014 Chem. Soc. Rev. 43 5234
[18] Cheng K W, Liu P H 2011 Sol. Energy Mater. Sol. Cells 95 1859
[19] Cheng Q, Peng X H, Chan C K 2013 Chem. Sus. Chem. 6 102
[20] Huang D, Persson C 2014 Chem. Phys. Lett. 591 189
[21] Li K, Chai B, Peng T Y, Mao J, Zan L 2013 RSC Adv. 3 253
[22] Sasamura T, Osaki T, Kameyama T, Shibayama T, Kudo A, Kuwabata S, Torimoto T 2012 Chem. Lett. 41 1009
[23] Yeh L Y, Cheng K W 2014 Thin Solid Films 558 289
[24] Tsuji I, Shimodaira Y, Kato H, Kobayashi H, Kudo A 2010 Chem. Mater. 22 1402
[25] Ikeda S, Nakamura T, Harada T, Matsumura M 2010 Phys. Chem. Chem. Phys. 12 13943
[26] Kresse G, Hafner J 1993 Phys. Rev. B 47 558
[27] Kresse G, Furthmller J 1996 Phys. Rev. B 54 11169
[28] Perdew J P, Burke K 1996 Phys. Rev. Lett. 77 3865
[29] Kresse G, Joubert D 1999 Phys. Rev. B 59 1758
[30] Monkhorst H J, Pack J D 1976 Phys. Rev. B 13 5188
[31] Chen S Y, Gong X G, Walsh A, Wei S H 2011 Physics 40 248 (in Chinese) [陈时友, 龚新高, Aron Walsh, 魏苏淮 2011 物理 40 248]
[32] Walsh A, Chen S Y, Wei S H, Gong X G 2012 Adv. Energy Mater. 2 400
[33] Chen S Y, Gong X G, Walsh A, Wei S H 2009 Appl. Phys. Lett. 94 041903
[34] Scanlon D O, Watson G W 2011 Phys. Chem. Chem. Phys. 13 9667
[35] Walsh A, Da Silva J L F, Wei S H 2008 Phys. Rev. B 78 075211
[36] Burton L A, Walsh A 2013 Appl. Phys. Lett. 102 132111
[37] Dandrea R G, Duke C B, Zunger A 1992 J. Vac. Sci. Technol. B 10 1744
[38] Zhao Y J, Zunger A 2004 Phys. Rev. B 69 104422
[39] Zhang S B, Wei S H, Zunger A 2000 Phys. Rev. Lett. 84 1232
[40] Chen S Y, Walsh A, Gong X G, Wei S H 2013 Adv. Mater. 25 1522
[41] Chen S Y, Gong X G, Walsh A, Wei S H 2010 Appl. Phys. Lett. 96 021902
[42] Shi L, Yin P Q 2013 Dalton Trans. 42 13607
[43] Khyzhun O Y, Ocheretova V A, Fedorchuk A O, Parasyuk O V 2014 Opt. Mater. 36 1396
[44] Marsen B, Cole B, Miller E L 2008 Sol. Energy Mater. Sol. Cells 92 1054
[45] Moriya M, Minegishi T, Kumagai H, Katayama M, Kubota J, Domen K 2013 J. Am. Chem. Soc. 135 3733
[46] Glatzel Th, Fuertes Marrón D, Schedel-Niedrig Th, Sadewasser S, Lux-Steiner M Ch 2002 Appl. Phys. Lett. 81 2017
[47] Arushanov E, Siebentritt S, Schedel-Niedrig T, Lux-Steiner M Ch 2006 J. Appl. Phys. 100 063715
[48] Jaffe J E, Zunger A 1984 Phys. Rev. B 29 1882
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