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直流磁控溅射厚度对Cu(Inx,Ga1-x)Se2背接触Mo薄膜性能的影响

田晶 杨鑫 刘尚军 练晓娟 陈金伟 王瑞林

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直流磁控溅射厚度对Cu(Inx,Ga1-x)Se2背接触Mo薄膜性能的影响

田晶, 杨鑫, 刘尚军, 练晓娟, 陈金伟, 王瑞林

Effect of thickness on the properties of Cu(Inx,Ga1-x)Se2 back conduct Mo thin films prepared by DC sputtering

Tian Jing, Yang Xing, Liu Shang-Jun, Lian Xiao-Juan, Chen Jin-Wei, Wang Rui-Lin
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  • 采用直流磁控溅射工艺, 在一定条件下通过控制溅射时间, 在钠钙玻璃上制备了不同厚度的用于Cu(Inx, Ga1-x)Se2薄膜太阳电池背接触材料的Mo薄膜, 并利用X射线衍射 (XRD)、场发射扫描电子显微镜 (SEM)、四探针测试仪、台阶仪研究了厚度对溅射时间、薄膜微结构、电学性能及力学性能的交互影响. Mo薄膜的厚度与溅射时间呈线性递增关系; 随厚度的增大, Mo薄膜 (110) 和 (211) 面峰强均逐渐增大, 择优生长从(110)方向逐渐向 (211)方向转变, 方块电阻值只随 (110) 方向上的生长而急剧减小直到一特定值约2 Ω/⇑, 电导率随薄膜的 (110) 择优取向程度的降低而线性减小直到一特定值约0.96×10-4 Ω·cm; Mo薄膜内部是一种多孔的长形簇状颗粒和颗粒间隙交织的结构, 并处于拉应力态, 其内部应变随薄膜厚度的增大而减小.
    In this study, Mo thin films which used in Cu(Inx Ga1-x)Se2 (CIGS) thin film solar cells as back conduct were deposited on soda-lime glass substrates via DC magnetron sputtering under certain conditions. A series of Mo thin films prepared of various thicknesses was obtained in different sputtering deposition times. The microstructure, electrical resistivity and mechanical strain property of Mo thin films, which may be varied by controlling the thickness, were investigated by XRD, SEM, four probes technology and Scotch tape test. As the results showed, the thicknesses of the films increased linearly with the sputtering time. With increasing thickness, the films' crystal growth showed a change from (110) preferred orientation to (211) preferred orientation. The sheet resistance sharply reduced to 2 Ω/⇑ with the increase of (110) peak height and the resistivity linearly decreased to 0.96×10-4 Ω·cm due to the level of (110) preferred orientation. The films surface has porous (fish-like) grain morphology and intergranular voids. All the films are in a tensile state, and the inner strain decreased with the increase of the thickness.
    • 基金项目: 高等学校博士学科点专项科研基金 (批准号: 20110181110003)、成都市科技局攻关计划 (批准号: 10GGYB380GX-023, 10GGYB828GX-023)、中物院-四川大学协同创新基金 (批准号: XTCX2011001)和四川省科技厅科技支撑项目(批准号: 2013FZ0034)资助的课题.
    • Funds: Project supported by the Doctoral Program of Higher Education, China (Grant No. 20110181110003), the Chengdu Natural Science Foundation, China (Grant Nos. 10GGYB380GX-023, 10GGYB828GX-023), the Collaborative Innovation Funding by China Academy of Engineering Physics and Sichuan University (Grant No. XTCX2011001), and the Sichuan Provincial Department of Science and Technology R&D Program (Grant No. 2013FZ0034).
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    Kohara N, Nishiwaki S, Hashimoto Y, Negami T, Wada T 2001 Sol. Energy Mater. Sol. Cells 67 209

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    Assmann L, Bernéde J C, Drici A, Amory C, Halgand E, Morsli M 2005 Appl. Surf. Sci. 246 159

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    Jackson P, Hariskos D, Lotter E, Paetel S, Wuerz R, Menner R, Wischmann W, Powalla M 2011 Prog. Photovolt: Res. Appl. 19 894

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    Repins I, Contreras M A, Egaas B, DeHart C, Scharf J, Perkins C L., To B, Noufi R 2008 Prog. Photovolt: Res. Appl. 16 235

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    Scofield J H, Duda A, Albin D, Ballardb B L, Predecki P K 1995 Thin Solid Films 260 26

    [8]

    Jubault M, Ribeaucourt L, Chassaing E, Renou G, Lincot D, Donsanti F 2011 Sol. Energy Mater. Sol. Cells 95 26

    [9]

    Li Z H, Cho E S, Kwon S J 2011 Appl. Surf. Sci. 257 9682

    [10]

    Wu H M, Liang S C, Lin Y L, Ni C Y, Bor H Y, Tsai D C, Shieu F S 2012 Vacuum 86 1916

    [11]

    Su C Y, Liao K H, Pan C T, Peng P W 2012 Thin. Solid Films 520 5936

    [12]

    Li W, Ao J P, He Q, Liu F F, Li F Y 2007 Acta Phys. Sin. 56 5009 (in Chinese) [李微, 敖建平, 何青, 刘芳芳, 李凤岩, 李长健, 孙云 2007 物理学报 56 2009]

    [13]

    Ji H, Zhao T X, Wang X P, Dong Y 1993 Acta Phys. Sin. 42 1340 (in Chinese) [季航, 赵特秀, 王晓平, 董诩 1993 物理学报 42 1340]

    [14]

    Salomé P M P, Malaquias J, Fernandes P A, Cunha A F da 2010 J. Phys. D: Appl. Phys. 43 345501

    [15]

    Zhang L, He Q, Jiang W L, Liu F F, Li C J, Sun Y 2008 Chin. Phys. Lett. 25 345

  • [1]

    Orgassa K, Schock H W, Werner J H 2003 Thin Solid Films 431 387

    [2]

    Wada T, Koharab N, Nishiwaki S, Negami T 2001 Thin Solid Films 387 118

    [3]

    Kohara N, Nishiwaki S, Hashimoto Y, Negami T, Wada T 2001 Sol. Energy Mater. Sol. Cells 67 209

    [4]

    Assmann L, Bernéde J C, Drici A, Amory C, Halgand E, Morsli M 2005 Appl. Surf. Sci. 246 159

    [5]

    Jackson P, Hariskos D, Lotter E, Paetel S, Wuerz R, Menner R, Wischmann W, Powalla M 2011 Prog. Photovolt: Res. Appl. 19 894

    [6]

    Repins I, Contreras M A, Egaas B, DeHart C, Scharf J, Perkins C L., To B, Noufi R 2008 Prog. Photovolt: Res. Appl. 16 235

    [7]

    Scofield J H, Duda A, Albin D, Ballardb B L, Predecki P K 1995 Thin Solid Films 260 26

    [8]

    Jubault M, Ribeaucourt L, Chassaing E, Renou G, Lincot D, Donsanti F 2011 Sol. Energy Mater. Sol. Cells 95 26

    [9]

    Li Z H, Cho E S, Kwon S J 2011 Appl. Surf. Sci. 257 9682

    [10]

    Wu H M, Liang S C, Lin Y L, Ni C Y, Bor H Y, Tsai D C, Shieu F S 2012 Vacuum 86 1916

    [11]

    Su C Y, Liao K H, Pan C T, Peng P W 2012 Thin. Solid Films 520 5936

    [12]

    Li W, Ao J P, He Q, Liu F F, Li F Y 2007 Acta Phys. Sin. 56 5009 (in Chinese) [李微, 敖建平, 何青, 刘芳芳, 李凤岩, 李长健, 孙云 2007 物理学报 56 2009]

    [13]

    Ji H, Zhao T X, Wang X P, Dong Y 1993 Acta Phys. Sin. 42 1340 (in Chinese) [季航, 赵特秀, 王晓平, 董诩 1993 物理学报 42 1340]

    [14]

    Salomé P M P, Malaquias J, Fernandes P A, Cunha A F da 2010 J. Phys. D: Appl. Phys. 43 345501

    [15]

    Zhang L, He Q, Jiang W L, Liu F F, Li C J, Sun Y 2008 Chin. Phys. Lett. 25 345

计量
  • 文章访问数:  4814
  • PDF下载量:  599
  • 被引次数: 0
出版历程
  • 收稿日期:  2012-12-27
  • 修回日期:  2013-01-31
  • 刊出日期:  2013-06-05

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