Citation: XU Ning, KONG Fan-Jie, WANG Yan-Zong. Electronic Transport in Z-Shaped Graphene-Nanoribbons: Shape and Size Effects[J]. Acta Physico-Chimica Sinica, ;2011, 27(03): 559-563. doi: 10.3866/PKU.WHXB20110305 shu

Electronic Transport in Z-Shaped Graphene-Nanoribbons: Shape and Size Effects

1.
1. Department of Physics, Yancheng Institute of Technology, Yancheng 224051, Jiangsu Province, P. R. China;
2. Department of Physics, Huaiyin Institute of Technology, Huaiyin 223003, Jiangsu Province, P. R. China

Received Date: 12 October 2010
Available Online: 21 January 2011
Fund Project: 国家自然科学基金(10874052) (10874052)全国优秀博士学位论文基金(200726)资助项目 (200726)

Based on the Green′s function method and the Landauer-Büttiker formula, we studied the electronic transport properties of a graphene heterojunction. This was a Z-shaped graphene nanoribbon (GNR), which was connected by zigzag graphene nanoribbon leads. We show that the conductance of the Z-shaped GNRs is highly sensitive to the shape and size of the heterojunctions. The charge density is strongly localized on the zigzag edge sites of the leads and thereby a conductance dip or gap results at the Fermi energy. By varying the width of the graphene ribbons between the junctions, we found many more resonant peaks in the conduction because of the quasi-bound states. The number of resonant peaks has little to do with the length of the graphene ribbons between the junctions. Importantly, we show that in the low-energy region the electrons retain their ballistic transport characteristic in the width uniformity of Z-shaped GNRs with included angle θ of 60° or 150° turns. These findings show that the Z-shaped GNRs can be selected for future ballistic device applications.
- Tight-binding model,
- Green′s function,
- Graphene-nanoribbon,
- Conductance
1. [1]
  
  (1) Hiura, H. Appl. Surf. Sci. 2004, 222, 374.
2. [2]
  (2) Zhang, Y.; Tan, Y. W.; Stormer, H. L.; Kim, P. Nature 2005, 438, 201.
3. [3]
  (3) Berger, C.; Song, Z. M.; Li, X. B.; Wu, X. S.; Brown, N.; Naud, C.; Mayou, D.; Li, T. B.; Hass, J.; Marchenkov, A. N.; Conrad, E. H.; First, P. N.; de Heer, W. A. Science 2006, 312, 1191.
4. [4]
  (4) Berger, C.; Song, Z. M.; Li, T. B.; Li, X. B.; Ogbazghi, A. Y.; Feng, R.; Dai, Z.; Marchenkov, A. N.; Conrad, E. H.; First, P. N.; de Heer, W. A. J. Phys. Chem. B 2004, 108, 19912.
5. [5]
  (5) Nakada, K.; Fujita, M.; Dresselhaus, G.; Dresselhaus, M. S. Phys. Rev. B 1996, 54, 17954.
6. [6]
  (6) Ezawa, M. Phys. Rev. B 2006, 73, 045432.
7. [7]
  (7) Brey, L.; Fertig, H. A. Phys. Rev. B 2006, 73, 195408.
8. [8]
  (8) Li, T. C.; Lu, S. P. Phys. Rev. B 2008, 77, 085408.
9. [9]
  (9) Ponomarenko, L. A.; Schedin, F.; Katsnelson, M. I.; Yang, R.; Hill, E. W.; Novolevov, K. S.; Geim, A. K. Science 2008, 320, 356.
10. [10]
  (10) Schnez, S.; Molitor, F.; Stampfer, C.; Guttinger, J.; Shorubalko, I.; Ihn, T.; Ensslin, K. Appl. Phys. Lett. 2009, 94, 012107.
11. [11]
  (11) Bahamon, D. A.; Pereira, A. L. C.; Schulz, P. A. Phys. Rev. B 2009, 79, 125414.
12. [12]
  (12) Novoselov, K. S.; Geim, A. K.; Morozov, S. V.; Jiang, D.; Zhang, Y.; Dubonos, S. V.; Gri rieva, I. V.; Firsov, A. A. Science 2004, 306, 666.
13. [13]
  (13) Echtermeyer, T. J.; Lemme, M. C.; Bolten, J.; Baus, M.; Ramsteiner, M.; Kurz, H. Eur. Phys. J. Spec. Top. 2007, 148, 19.
14. [14]
  (14) Russo, S.; Oostinga, J. B.; Wehenkel, D.; Heersche, H.; Sobhani, S. S.; Vandersypen, L. M. K.; Morpur , A. F. Phys. Rev. B 2008, 77, 085413.
15. [15]
  (15) Recher, P.; Trauzettel, B.; Rycerz, A.; Blanter, Y. M.; Beenakker, C. W. J.; Morpur , A. F. Phys. Rev. B 2007, 76, 235404.
16. [16]
  (16) Shen, T.; Wu, Y. Q.; Capano, M. A.; Robickinson, L. P.; Engel, L. W.; Ye, P. D. Appl. Phys. Lett. 2008, 93, 122102.
17. [17]
  (17) Xu, N.; Wang, B. L.; Sun, H. Q.; Ding, J. W. Chin. Phys. Lett. 2010, 27, 107303.
18. [18]
  [徐宁, 王保林, 孙厚谦, 丁建文. 物理快报, 2010, 27, 107303.]
19. [19]
  (18) Xu, N.; Wang, B. L.; Sun, H. Q.; Kong, F. J. Physica B in press, DOI:10.1016/j.physb.2010.11.065.
20. [20]
  (19) Areshkin, D. A.; White, C. T. Nano Lett. 2007, 7, 3253.
21. [21]
  (20) Datta, S. Electronic Transport in Mesoscopic Systems; Cambridge University Press: Cambridge, England, 1997.
22. [22]
  (21) Xu, N.; Ding, J. W.; Xing, D. Y. J. Appl. Phys. 2008, 103, 083710.
23. [23]
  (22) Xu, N.; Ding, J. W. J. Phys.: Condens. Matter 2008, 48, 485213.
24. [24]
  (23) Xu, N.; Wang, B. L.; Sun, H. Q.; Kong, F. J. Chin. Phys. B 2010, 19, 117201.
25. [25]
  [徐宁, 王保林, 孙厚谦, 孔凡杰. 中国物理B, 2010, 19, 117201.]
26. [26]
  (24) Rosales, L.; Pacheco, M.; Barticevic, Z.; latgé, A.; Orellana, P. A. Nanotechnology 2008, 19, 065402.
27. [27]
  (25) Areshkin, D. A.; Gunlycke, D.; White, C. T. white Nano Lett. 2007, 7, 204.
1. [1]
  Ruilin Han , Xiaoqi Yan . Comparison of Multiple Function Methods for Fitting Surface Tension and Concentration Curves. University Chemistry, 2024, 39(7): 381-385. doi: 10.3866/PKU.DXHX202311023
2. [2]
  Ruming Yuan , Pingping Wu , Laiying Zhang , Xiaoming Xu , Gang Fu . Patriotic Devotion, Upholding Integrity and Innovation, Wholeheartedly Nurturing the New: The Ideological and Political Design of the Experiment on Determining the Thermodynamic Functions of Chemical Reactions by Electromotive Force Method. University Chemistry, 2024, 39(4): 125-132. doi: 10.3866/PKU.DXHX202311057
3. [3]
  Fei Xie , Chengcheng Yuan , Haiyan Tan , Alireza Z. Moshfegh , Bicheng Zhu , Jiaguo Yu . d带中心调控过渡金属单原子负载COF吸附O₂的理论计算研究. Acta Physico-Chimica Sinica, 2024, 40(11): 2407013-. doi: 10.3866/PKU.WHXB202407013
4. [4]
  Yunting Shang , Yue Dai , Jianxin Zhang , Nan Zhu , Yan Su . Something about RGO (Reduced Graphene Oxide). University Chemistry, 2024, 39(9): 273-278. doi: 10.3866/PKU.DXHX202306050
5. [5]
  Zhihuan XU , Qing KANG , Yuzhen LONG , Qian YUAN , Cidong LIU , Xin LI , Genghuai TANG , Yuqing LIAO . Effect of graphene oxide concentration on the electrochemical properties of reduced graphene oxide/ZnS. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1329-1336. doi: 10.11862/CJIC.20230447
6. [6]
  Junqiao Zhuo , Xinchen Huang , Qi Wang . Symbol Representation of the Packing-Filling Model of the Crystal Structure and Its Application. University Chemistry, 2024, 39(3): 70-77. doi: 10.3866/PKU.DXHX202311100
7. [7]
  Shule Liu . Application of SPC/E Water Model in Molecular Dynamics Teaching Experiments. University Chemistry, 2024, 39(4): 338-342. doi: 10.3866/PKU.DXHX202310029
8. [8]
  Zhuo WANG , Junshan ZHANG , Shaoyan YANG , Lingyan ZHOU , Yedi LI , Yuanpei LAN . Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1708-1718. doi: 10.11862/CJIC.20240067
9. [9]
  Zhenlin Zhou , Siyuan Chen , Yi Liu , Chengguo Hu , Faqiong Zhao . A New Program of Voltammetry Experiment Teaching Based on Laser-Scribed Graphene Electrode. University Chemistry, 2024, 39(2): 358-370. doi: 10.3866/PKU.DXHX202308049
10. [10]
  Rui Li , Jiayu Zhang , Anyang Li . Two Levels of Understanding of Chemical Bonds: a Case of the Bonding Model of Hypervalent Molecules. University Chemistry, 2024, 39(2): 392-398. doi: 10.3866/PKU.DXHX202308051
11. [11]
  Wenliang Wang , Weina Wang , Sufan Wang , Tian Sheng , Tao Zhou , Nan Wei . “Schrödinger Equation – Approximate Models – Core Concepts – Simple Applications”: Constructing a Logical Framework and Knowledge Graph of Atom and Molecule Structures. University Chemistry, 2024, 39(8): 338-343. doi: 10.3866/PKU.DXHX202312084
12. [12]
  Limei CHEN , Mengfei ZHAO , Lin CHEN , Ding LI , Wei LI , Weiye HAN , Hongbin WANG . Preparation and performance of paraffin/alkali modified diatomite/expanded graphite composite phase change thermal storage material. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 533-543. doi: 10.11862/CJIC.20230312
13. [13]
  Zeyu XU , Anlei DANG , Bihua DENG , Xiaoxin ZUO , Yu LU , Ping YANG , Wenzhu YIN . Evaluation of the efficacy of graphene oxide quantum dots as an ovalbumin delivery platform and adjuvant for immune enhancement. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1065-1078. doi: 10.11862/CJIC.20240099
14. [14]
  Hao BAI , Weizhi JI , Jinyan CHEN , Hongji LI , Mingji LI . Preparation of Cu₂O/Cu-vertical graphene microelectrode and detection of uric acid/electroencephalogram. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1309-1319. doi: 10.11862/CJIC.20240001
15. [15]
  Zhengyu Zhou , Huiqin Yao , Youlin Wu , Teng Li , Noritatsu Tsubaki , Zhiliang Jin . Synergistic Effect of Cu-Graphdiyne/Transition Bimetallic Tungstate Formed S-Scheme Heterojunction for Enhanced Photocatalytic Hydrogen Evolution. Acta Physico-Chimica Sinica, 2024, 40(10): 2312010-. doi: 10.3866/PKU.WHXB202312010
16. [16]
  Yan LIU , Jiaxin GUO , Song YANG , Shixian XU , Yanyan YANG , Zhongliang YU , Xiaogang HAO . Exclusionary recovery of phosphate anions with low concentration from wastewater using a CoNi-layered double hydroxide/graphene electronically controlled separation film. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1775-1783. doi: 10.11862/CJIC.20240043
17. [17]
  Gaofeng Zeng , Shuyu Liu , Manle Jiang , Yu Wang , Ping Xu , Lei Wang . Micro/Nanorobots for Pollution Detection and Toxic Removal. University Chemistry, 2024, 39(9): 229-234. doi: 10.12461/PKU.DXHX202311055
18. [18]
  Jiao CHEN , Yi LI , Yi XIE , Dandan DIAO , Qiang XIAO . Vapor-phase transport of MFI nanosheets for the fabrication of ultrathin b-axis oriented zeolite membranes. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 507-514. doi: 10.11862/CJIC.20230403
19. [19]
  Hong LI , Xiaoying DING , Cihang LIU , Jinghan ZHANG , Yanying RAO . Detection of iron and copper ions based on gold nanorod etching colorimetry. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 953-962. doi: 10.11862/CJIC.20230370
20. [20]
  Guimin ZHANG , Wenjuan MA , Wenqiang DING , Zhengyi FU . Synthesis and catalytic properties of hollow AgPd bimetallic nanospheres. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 963-971. doi: 10.11862/CJIC.20230293

Get Citation

PDF

XML

Metrics

PDF Downloads(1528)
Abstract views(2573)
HTML views(49)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142