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旋涂方式对有机发光显示屏发光均匀性及性能的影响

刘南柳 艾娜 胡典钢 余树福 彭俊彪 曹镛 王坚

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旋涂方式对有机发光显示屏发光均匀性及性能的影响

刘南柳, 艾娜, 胡典钢, 余树福, 彭俊彪, 曹镛, 王坚

Effect of spin-coating process on the performance of passive-matrix organic light-emitting display

Liu Nan-Liu, Ai Na, Hu Dian-Gang, Yu Shu-Fu, Peng Jun-Biao, Cao Yong, Wang Jian
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  • 采用旋转涂布法制备空穴传输层聚二氧乙基噻吩/聚对苯乙烯磺酸过程中,设置高低转速相结合的方式,调转基片方向实施二次旋涂干燥成膜,有效改善了材料因基片开口设计而引起的单双行薄膜厚度不均匀现象. 由于增加了功能层薄膜的均匀性,从而改善了显示屏的整体发光均匀性与发光效率. 改进工艺后制备的绿光显示屏电流效率提高了近40%,并得到了电流效率达1.25 cd/A的96×64的3.81 cm全彩高分子发光点阵显示屏,发光亮度提高了近25%.
    By improving the spin-coating process during the deposition of hole transport layer poly(3,4-ethylenedioxythiophene)-poly(styrene-sulfonate)(PEDOT:PSS), high efficient monochrome passive-matrix organic light-emitting display is fabricated. The PEDOT:PSS film is spin-coated with a two-step spin-coating process, in which the substrate is turned 180° during the spin-coating, forcing the piled-up materials to move reversely. By introducing the second spin-coating step, the film thickness difference between single and double lines significantly reduces, leading to a more uniform light emission and a larger fill factor for the 3.81 cm monochrome polymer light-emitting diode display. Green light-emitting display with a peak current efficiency of 17 cd/A is successfully fabricated, and the efficiency is improved by 40 percent compared with that made by traditional spin-coating method. A 3.81 cm 96×64 full color display with a current efficiency of 1.25 cd/A is also successfully made.
    • 基金项目: 国家高新技术研究发展计划(批准号:2008AA03A311)、国家重点基础研究发展计划(批准号:2009CB623604)和中央高等学校基本科研基金 (批准号:20092M0111)资助的课题.
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  • [1]

    Pope M, Kallmann H P, Mangnante P 1963 J. Chem. Phys. 38 2042

    [2]

    [邹建华、兰林峰、徐瑞霞、杨 伟、彭俊彪 2010 物理学报 59 1275]

    [3]

    Tang C W, Van Slyke S A 1987 Appl. Phys. Lett. 51 913

    [4]

    Niu Q L, Shao Y X, Xu W, Wang L, Han S H, Liu N L, Peng J B, Cao Y, Wang J 2008 Org. Electron. 9 95

    [5]

    Stephen F R 2004 Nature 428 911

    [6]

    Yimsiri P, Mackley M R 2007 Thin Solid Films 515 3787

    [7]

    Pschenitzka F, Sturm J C 1999 Appl. Phys. Lett. 74 1913

    [8]

    Pardo D A, Jabbour G E, Peyghambarian N 2000 Adv. Mater. 12 1249

    [9]

    Chang S C, Bharathan J, Yang Y, Helgeson R, Wudl F, Ramey M B, Reynolds J R 1998 Appl. Phys. Lett. 73 2561

    [10]

    van der Vaart N C, Lifka H, Budzelaar F P M, Rubingh J E J M, Hoppenbrouwers J J L, Dijksman J F, Verbeek R G F A, van Woudenberg R, Vossen F J, Hiddink M G H, Rosink J J W M, Bernards T N M, Giraldo A, Young N D, Fish D A, Childs M J, Steer W A, Lee D, George D S 2005 J. Soc. Inform. Display 13 9

    [11]

    Braun D, Heeger A J 1991 Appl. Phys. Lett. 58 1982

    [12]

    Gustafsson G, Cao Y, Treacy G M, Klavetter F, Colaneri N, Heeger A J 1992 Nature 357 477

    [13]

    Chang Y G, Nam S H, Kim N K, Kook Y H, Kim J, Yoo S S, Kim C D, Kang I, Chung I J 2008 Soc. Inform. Display 39 637

    [14]

    Hamer J W, Cok R S, Parrett G J, Winters D, Primerano B 2009 Soc. Inform. Display 40 947

    [15]

    Partridge R H 1983 Polymer 24 748

    [16]

    Burroughes J H, Bradleyd D D C, Brown A R, Marks R N, Mackay K, Friend R H, Burns P L, Holmes A B 1990 Nature 347 539

    [17]

    Charlie M, Anzlowar M, Innocenzo J, Kolosov D, Lehr W, O’Regan M, Sant P, Stainer M, Sysavat S, Venkatesh S 2003 Soc. Inform. Display 34 1191

    [18]

    Rahul G, Andrew I, Natarajan S, Franky S 2004 Soc. Inform. Display 35 1281

    [19]

    Saafir A K, Chung J, Joo I, Huh J, Rhee J, Park S, Choi B, Ko C, Koh B, Jung J, Choi J, Kim N, Chung K 2005 Soc. Inform. Display 36 968

    [20]

    Hou L T, Hou Q, Peng J B,Cao Y 2005 Acta Phys. Sin. 54 5377 (in Chinese) [侯林涛、侯 琼、彭俊彪、曹 镛 2005 物理学报 54 5377]

    [21]

    Huang W B, Peng J B 2007 Acta Phys. Sin. 56 2974(in Chinese) [黄文波、彭俊彪 2007 物理学报 56 2974]

    [22]

    Okutani S, Kamiura N, Sano H, Sawatani T, Fujita D, Takehara T, Sunohara K, Kobayashi M 2007 Soc. Inform. Display 38 173

    [23]

    Zou J H, Tao H, Wu H B, Peng J B 2009 Acta Phys. Sin. 58 1224 (in Chinese) [邹建华、陶 洪、吴宏斌、彭俊彪 2009 物理学报 58 1224 Zou J H, Lan L F, Xu R X, Yang W, Peng J B 2010 Acta Phys. Sin. 59 1275 (in Chinese)

    [24]

    Ogi T, Modesto-Lopez L B, Iskandar F, Okuyama K 2007 Colloids Surf. A 297 71

    [25]

    Li Y Y, Wu H B, Zou J H, Ying L, Yang W, Cao Y 2009 Org. Electron. 10 901

    [26]

    Hou Q, Zhou Q M, Zhang Y, Yang W, Yang R Q, Cao Y 2004 Macromolecules 37 6299

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出版历程
  • 收稿日期:  2010-09-14
  • 修回日期:  2011-03-09
  • 刊出日期:  2011-04-05

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