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This paper focuses on the piezoelectric properties of zigzag graphene nanoribbons with hydrogen selective modifications by first-principles calculations. The structures of hydrogen modified graphene nanoribbons are optimized and the calculated hydrogen binding energies indicate that these structures are very stable. Owing to the hydrogen atom selective adsorption, the adjacent carbon atoms have different charge states and breaking inversion symmetries of nonpiezoelectric graphene. So, the positive charge centers and the negative charge centers of the hexatomic carbon ring in these structures separate from each other under uniaxial tensile strain, inducing the macroscopical electric polarization. Furthermore, the gradient of strain induced dipole moment density is related to ribbon width, i.e., the wider the ribbon, the better the piezoelectric property is. Besides, the dipole moment density of hydrogen selective modified graphene nanoribbons without strain could be controlled by changing the edge modification configuration of hydrogen atoms effectually.
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Keywords:
- graphene nanoribbons /
- first-principles calculation /
- piezoelectric properties /
- modification
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[1] Brown C S, Taylor R, Thomas L A 1962 Proc. IEEE B 43 193
[2] Philippot E, Goiffon A, Ibanez A 1994 J. Solid State Chem. 110 356
[3] King-Smith R D, Vanderbilt D 1993 Phys. Rev. B 47 1651
[4] Xin J, Zheng Y Q, Shi E W 2007 Appl. Phys. Lett. 91 112902
[5] Majdoub M S, Sharma P, Cagin T 2008 Phys. Rev. B 77 125424
[6] Kholkin A, Amdursky N, Bdikin I, Gazit E, Rosenman G 2010 ACS Nano. 4 610
[7] Qi Y, Kim J, Nguyen T D, Lisko B, Purohit P K, McAlpine M C 2011 Nano Lett. 11 1331
[8] Agrawal R, Espinosa H D 2011 Nano Lett. 11 786
[9] Qi J S, Qian X, Qi L, Feng J, Shi D, Li J 2012 Nano Lett. 12 1224
[10] Morozov S V, Novoselov K S, Schedin F, Jiang D, Firsov A A, Geim A K 2005 Phys. Rev. B 72 201401
[11] Garcia-Sanchez D, van der Zande A M, Paulo A S, Lassagne B, McEuen P L, Bachtold A 2008 Nano Lett. 8 1399
[12] Hu H X, Zhang Z H, Liu X H, Qiu M, Ding K H 2009 Acta Phys. Sin. 58 7165 (in Chinese) [胡海鑫, 张振华, 刘新海, 邱明, 丁开和 2009 物理学报 58 7165]
[13] Santos J E, Peres N M R, dos Santos J, Neto A H C 2011 Phys. Rev. B 84 085430
[14] Wu J B, Qian Y, Guo X J, Cui X H, Miao L, Jiang J J 2012 Acta Phys. Sin. 61 073601 (in Chinese) [吴江滨, 钱耀, 郭小杰, 崔先慧, 缪灵, 江建军 2012 物理学报 61 073601]
[15] Miwa R H, Schmidt T M, Scopel W L, Fazzio A 2011 Appl. Phys. Lett. 99 163108
[16] Kang Y J, Kang J, Chan K J 2008 Phys. Rev. B 78 115404
[17] Yan J Y, Zhang P, Sun B, Lu H Z, Wang Z G, Duan S Q, Zhao X G 2009 Phys. Rev. B 79 115403
[18] Lusk M T, Carr L D 2008 Phys. Rev. Lett. 100 175503
[19] Wang Z Y, Hu H F, Gu L, Wang W, Jia J F 2011 Acta Phys. Sin. 60 017102 (in Chinese) [王志勇, 胡慧芳, 顾林, 王巍, 贾金凤 2011 物理学报 60 017102]
[20] Denis P A 2010 Chem. Phys. Lett. 492 251
[21] Akturk O U, Tomak M 2010 Appl. Phys. Lett. 96 081914
[22] Lin Q, Chen Y X, Wu J B, Kong Z M 2011 Acta Phys. Sin. 60 097103 (in Chinese) [林琦, 陈余行, 吴建宝, 孔宗敏 2011 物理学报 60 097103]
[23] Elias D C, Nair R R, Mohiuddin T M G 2009 Science 323 610
[24] Balog R, Jorgensen B, Nilsson L, Andersen M, Rienks E 2010 Nat. Mater. 9 315
[25] Subrahmanyam K S, Kumar P, Maitra U, Govindaraj A, Hembram K P P S, Waghmare U V, Rao C N R 2011 Proc. Natl. Acad. Sci. 108 2674
[26] Hohenberg P, Kohn W 1964 Phys. Rev. B 136 864
[27] Kohn W, Sham L J 1965 Phys. Rev. A 140 1133
[28] Portal D S, Ordejón P, Artacho E, Soler J M 1997 J. Quantum. Chem. 65 453
[29] Kohn W, Sham L J 1965 Phys. Rev. A 137 1697
[30] Perdew J P, Zunger A 1981 Phys. Rev. B 23 5048
[31] Pauling L 1932 J. Am. Chem. Soc. 54 3570
[32] Allred A L 1961 J. Inorg. Nucl. Chem. 17 215
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