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功能层厚度是影响有机电致发光器件出光效率的主要因素之一,故获得不同功能层厚度对器件出光特性的影响规律是制备高性能器件的重要基础. 本文基于薄膜光学原理、电偶极子辐射理论及Fabry-Prot微腔原理,建立了结构为glass/ITO/N,N0-bis(naphthalen-1-yl)-N,N0-bis(phenyl)-benzidine(NPB)/tris(8-hydroxyquinoline)aluminum(Alq3)/molybdenum trioxide(MoO3)/NPB/Alq3/Al的叠层有机电致发光器件的光学模型,系统地研究了各个功能层厚度对叠层有机电致发光器件出光强度的影响,得到了功能层厚度对器件出光强度影响的规律. 该模型的建立与所获得的结果可对深入了解叠层有机电致发光器件的工作机理以及制备高性能的器件提供一定的帮助.Based on the principle of thin film optics, the theory of electric dipole radiation, and the principle of Fabry-Prot microcavity, an optical model is built for the tandem organic light emitting diode (OLED) with the structure of Glass/ITO/N, N0-bis(naphthalen-1-yl)-N, N0-bis (phenyl)-benzidine(NPB)/tris(8-hydroxyquinoli-ne) aluminum (Alq3)/molybdenum trioxide (MoO3)/NPB/Alq3/LiF/Al. The influence of the functional layer thickness on the light output intensity of device is systematically studied, the laws of light output intensity for tandem OLEDs under different thickness values of functional layer are obtained. This model and the results obtained in this paper can present an in-depth understanding of the working mechanism of tandem OLED and help ones fabricate high efficiency OLED.
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Keywords:
- tandem organic light-emitting diodes /
- light output property /
- thickness /
- numerical study
[1] Reineke S, Lindner F, Schwartz G, Seidler N, Walzer K, Lussem B, Leo K 2009 Nature 459 234
[2] Chen F P, Xu B, Zhao Z J, Tian W J, Lu P, Im C 2010 Chin. Phys. B 19 037801
[3] Jiang W L, Meng Z H, Cong L, Wang J, Wang L Z, Han Q, Meng F C, Gao Y H 2010 Acta Phys. Sin. 59 6642 (in Chinese) [姜文龙, 孟昭晖, 丛林, 汪津, 王立忠, 韩强, 孟凡超, 高永慧 2010 59 6646]
[4] Chen S J, Yu J S, Wen W, Jiang Y D 2011 Acta Phys. Sin. 60 037202 (in Chinese) [陈苏杰, 于军胜, 文雯, 蒋亚东 2011 60 037202]
[5] Wu X M, Shen L Y, Hua Y L, Dong M S, Mu X, Bai J J, Bi W T, Yang X Y, Yin S G 2012 Acta Phys. Sin. 61 178502 (in Chinese) [吴晓明, 申利莹, 华玉林, 董木森, 穆雪, 白娟娟, 毕文涛, 杨小艳, 印寿根 2012 61 178502]
[6] Chen P, Zhao L, Duan Y, Cheng G, Zhao Y, Liu S Y 2011 Acta Phys. Sin. 60 097203 (in Chinese) [陈平, 赵理, 段羽, 程刚, 赵毅, 刘式墉 2011 60 097203]
[7] Zhang X W, Hu Q 2012 Acta Phys. Sin. 61 207802 (in Chinese) [张新稳, 胡琦 2012 61 207802]
[8] Chiba, T, Pu Y J, Miyazaki R, Nakayama K I, Sasabe H, Kido J 2011 Org. Electron. 12 710
[9] Liao L S, Slusarek W K, Hatwar T K, Ricks M L, Comfort D L 2008 Adv. Mater. 20 324
[10] Chen C W, Lu Y J, Wu C C, Wu E H E, Chu C W, Yang Y 2005 Appl. Phys. Lett. 87 241121
[11] Tsutsui T, Terai M 2004 Appl. Phys. Lett. 84 440
[12] Kanno H, Holmes R J, Sun Y, Kena-Cohen S, Forrest S R 2006 Adv. Mater. 18 339
[13] Chen P, Xue Q, Xie W F, Xie G H, Duan Y, Zhao Y, Liu S Y, Zhang L Y, Li B 2009 Appl. Phys. Lett. 95 123307
[14] Chang C C, Hwang S W, Chen C H, Chen J F 2004 Jpn. J. Appl. Phys. 43 6418
[15] Liao L S, Klubek K P, Tang C W 2004 Appl. Phys. Lett. 84 167
[16] Lu F P, Wang Q, Zhou X 2003 Chin. Phys. B 22 037202
[17] Wang Z B, Helander M G, Xu X F, Puzzo D P, Qiu J, Greiner M T, Lu Z H 2011 J. Appl. Phys. 109 053107
[18] Lukosz W 1979 J. Opt. Soc. Am. 69 1495
[19] Lukosz W, Kunz R E 1977 J. Opt. Soc. Am. 67 1615
[20] Peng H J 2005 Ph. D. Dissertation (Hongkang: Hongkang University of Science and Technology)
[21] Lin Y C, Lu W Q 1990 The Principle of Thin Film Optics (Beijing: National Defence Industry Press) p34 (in Chinese) [林永昌, 卢维强 1990 光学薄膜原理(北京: 国防工业出版社)第34页]
[22] Benisty H, Stanley R, Mayer M 1998 J. Opt. Soc. Am. A 15 1192
[23] Huang C H, Li F Y 2005 Introduction to Organic Light-Emitting Materials and Devices (Shanghai: Fudan University Press) p43 (in Chinese) [黄春辉, 李富友 2005 有机电致发光材料与器件导论(上海: 复旦大学出版社)第43页]
[24] Tang C W, van Slyke S A, Chen C H 1989 J. Appl. Phys. 65 3610
[25] Kumar S, Shukla V K, Tripathi A 2005 Thin Solid Films 477 240
[26] Zhang L T, Xie W F, Wang J, Zhang H Z, Zhang Y S 2006 J. Phys. D 39 2373
[27] Synowicki R A 1998 Thin Solid Films 313 394
[28] Ji W Y 2010 Ph. D. Dissertation (Changchun: Jilin university) (in Chinese) [纪文宇 2010 博士学位论文(长春: 吉林大学)]
[29] Bozano L D, Kean B W, Beinhoff M, Carter K R, Rice P M, Scott J C 2005 Adv. Func. Mates. 15 1933
[30] Ruhstaller B, Carter S A, Barth S, Riel H, Riess W, Scott J C 2001 J. Appl. Phys. 89 4575
[31] Martin S J, Verschoor G L B, Webster M A, Walker A B 2002 Org. Electron. 3 129
[32] Crone B K, Davids P S, Cambell I H, Smith D L 2000 J. Appl. Phys. 87 1974
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[1] Reineke S, Lindner F, Schwartz G, Seidler N, Walzer K, Lussem B, Leo K 2009 Nature 459 234
[2] Chen F P, Xu B, Zhao Z J, Tian W J, Lu P, Im C 2010 Chin. Phys. B 19 037801
[3] Jiang W L, Meng Z H, Cong L, Wang J, Wang L Z, Han Q, Meng F C, Gao Y H 2010 Acta Phys. Sin. 59 6642 (in Chinese) [姜文龙, 孟昭晖, 丛林, 汪津, 王立忠, 韩强, 孟凡超, 高永慧 2010 59 6646]
[4] Chen S J, Yu J S, Wen W, Jiang Y D 2011 Acta Phys. Sin. 60 037202 (in Chinese) [陈苏杰, 于军胜, 文雯, 蒋亚东 2011 60 037202]
[5] Wu X M, Shen L Y, Hua Y L, Dong M S, Mu X, Bai J J, Bi W T, Yang X Y, Yin S G 2012 Acta Phys. Sin. 61 178502 (in Chinese) [吴晓明, 申利莹, 华玉林, 董木森, 穆雪, 白娟娟, 毕文涛, 杨小艳, 印寿根 2012 61 178502]
[6] Chen P, Zhao L, Duan Y, Cheng G, Zhao Y, Liu S Y 2011 Acta Phys. Sin. 60 097203 (in Chinese) [陈平, 赵理, 段羽, 程刚, 赵毅, 刘式墉 2011 60 097203]
[7] Zhang X W, Hu Q 2012 Acta Phys. Sin. 61 207802 (in Chinese) [张新稳, 胡琦 2012 61 207802]
[8] Chiba, T, Pu Y J, Miyazaki R, Nakayama K I, Sasabe H, Kido J 2011 Org. Electron. 12 710
[9] Liao L S, Slusarek W K, Hatwar T K, Ricks M L, Comfort D L 2008 Adv. Mater. 20 324
[10] Chen C W, Lu Y J, Wu C C, Wu E H E, Chu C W, Yang Y 2005 Appl. Phys. Lett. 87 241121
[11] Tsutsui T, Terai M 2004 Appl. Phys. Lett. 84 440
[12] Kanno H, Holmes R J, Sun Y, Kena-Cohen S, Forrest S R 2006 Adv. Mater. 18 339
[13] Chen P, Xue Q, Xie W F, Xie G H, Duan Y, Zhao Y, Liu S Y, Zhang L Y, Li B 2009 Appl. Phys. Lett. 95 123307
[14] Chang C C, Hwang S W, Chen C H, Chen J F 2004 Jpn. J. Appl. Phys. 43 6418
[15] Liao L S, Klubek K P, Tang C W 2004 Appl. Phys. Lett. 84 167
[16] Lu F P, Wang Q, Zhou X 2003 Chin. Phys. B 22 037202
[17] Wang Z B, Helander M G, Xu X F, Puzzo D P, Qiu J, Greiner M T, Lu Z H 2011 J. Appl. Phys. 109 053107
[18] Lukosz W 1979 J. Opt. Soc. Am. 69 1495
[19] Lukosz W, Kunz R E 1977 J. Opt. Soc. Am. 67 1615
[20] Peng H J 2005 Ph. D. Dissertation (Hongkang: Hongkang University of Science and Technology)
[21] Lin Y C, Lu W Q 1990 The Principle of Thin Film Optics (Beijing: National Defence Industry Press) p34 (in Chinese) [林永昌, 卢维强 1990 光学薄膜原理(北京: 国防工业出版社)第34页]
[22] Benisty H, Stanley R, Mayer M 1998 J. Opt. Soc. Am. A 15 1192
[23] Huang C H, Li F Y 2005 Introduction to Organic Light-Emitting Materials and Devices (Shanghai: Fudan University Press) p43 (in Chinese) [黄春辉, 李富友 2005 有机电致发光材料与器件导论(上海: 复旦大学出版社)第43页]
[24] Tang C W, van Slyke S A, Chen C H 1989 J. Appl. Phys. 65 3610
[25] Kumar S, Shukla V K, Tripathi A 2005 Thin Solid Films 477 240
[26] Zhang L T, Xie W F, Wang J, Zhang H Z, Zhang Y S 2006 J. Phys. D 39 2373
[27] Synowicki R A 1998 Thin Solid Films 313 394
[28] Ji W Y 2010 Ph. D. Dissertation (Changchun: Jilin university) (in Chinese) [纪文宇 2010 博士学位论文(长春: 吉林大学)]
[29] Bozano L D, Kean B W, Beinhoff M, Carter K R, Rice P M, Scott J C 2005 Adv. Func. Mates. 15 1933
[30] Ruhstaller B, Carter S A, Barth S, Riel H, Riess W, Scott J C 2001 J. Appl. Phys. 89 4575
[31] Martin S J, Verschoor G L B, Webster M A, Walker A B 2002 Org. Electron. 3 129
[32] Crone B K, Davids P S, Cambell I H, Smith D L 2000 J. Appl. Phys. 87 1974
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