| 研究生: |
古哲安 Ku, Che-An |
|---|---|
| 論文名稱: |
應用新型銥金屬錯合物之高效率
紅色磷光有機電激發光元件 The research on high-efficiency red organic electro phosphorescent devices using a novel iridium complex |
| 指導教授: |
朱聖緣
Chu, Sheng-Yuan |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 微機電系統工程研究所 Institute of Micro-Electro-Mechancial-System Engineering |
| 論文出版年: | 2006 |
| 畢業學年度: | 94 |
| 語文別: | 中文 |
| 論文頁數: | 94 |
| 中文關鍵詞: | 磷光 、紅光 、有機電激發光 、銥金屬錯合物 |
| 外文關鍵詞: | red organic electro phosphorescent, oled, iridium complex |
| 相關次數: | 點閱:63 下載:2 |
| 分享至: |
| 查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
在本研究中,我們使用新型紅色磷光材料(4-mpiq)2Ir(acac) (R-05)和(7-mpiq)2Ir(acac) (R-21),以共蒸著的方式摻雜在發光層中,首先利用不同的Host材料並將客發光體材料摻雜其中,設計出較合適的元件結構,找出較好之元件發光效率,使元件發出紅色光。其次,在最佳結構下進行摻雜濃度之調變,來探討此元件的特性,從濃度調變中找出高效率以及高亮度的最佳摻雜濃度。
本研究比較在不同主發光體材料下摻雜的時候,對於摻雜物R-05系統所得到的元件特性影響很大,並且嘗試將R-05摻雜在CBP中,藉由調變摻雜濃度以探討是否能達到白光元件的目的,而其最終實驗結果紅光在CIE圖上的位置(0.66,0.32)和在CIE圖上的位置為(0.38,0.37)的白光區域內。另外,我們也試著將另一支化學式相似的紅光材料R-21來取代最佳結構中的R-05材料,來觀察此兩種客發光體材料中的差異之處。
本研究可獲得之紅光元件特性數據有:(R-05)最大輝(12540cd/m2)
最大元件效率(15.3cd/A)和(R-21) ,最大輝度值(9108cd/m2),最大件效率(10.8cd/m2),白光區域元件特性數據有:最大輝度(331cd/ m2) ,元件效率(2.5cd/A);本研究可提供OLED應用一基礎之研究。
In this reserch, we use the novel red phosphorescence dopant, (4’-mpiq)2Ir(acac) (R-05)and (7-mpiq)2Ir(acac) (R-21),to dope into emission layer by co-evaporation. First, we design the different structure by selecting different host materials to obtain the better luminescence efficiency and red emission .Secend, adjust the concentration of the emission layer in the perferred structure, and then investigate the characteristics of the devices .
The research shows clearly the control of the R-05 dopant concentration is very important and sensitivity to characteristics of the device. We obtain the nearly pure white emission with CIE coordinates (0.38,0.37)and pure red emission with CIE coordinates (0.66,0.32) in the dopant system. We observe the difference between R-05 and R-21 in addition.
The research attains the characteristic data , the maxima luminescence (12540cd/ m2) and maxima device efficiency (15.3cd/A) in R-05, the maxima luminescence (9108cd/m2) and maxima device efficiency (10.8cd/A) in R-21 and the maxima luminescence (331cd/m2) and maxima device efficiency (2.5cd/A) in white emission device.
[1] M. Pope, H. Kallmann, P. Magnante, J. Chem. Phys. 38 , 2042 (1963).
[2] W. Helfrich and W.G. Schneider, Phys. Rev. Lett. 14, 229 (1965).
[3] M. J. Flynn, J. Kanicki, A. Badano, and W. R. Eyler, Imaging & Therapeutic Technology, 19, 1653 (1999).
[4] J.H. Burroughes, D. D. C. Bradley, A. R. Brown, R. N. Marks, K. Mackay, R. H. Friend, P. L. Burns, and A. B. Holmes, Nature, 347, 539 (1990).
[5] J. H. Burroughes, D. D. C. Bradley, A. R. Brown, R. N. Marks,K. Mackay, R. H. Friend, P. L. Burns, and A. B. Holmes, Nature,347 ,539 (1990).
[6] Y. Ohmore, and K. YoShino, Jap. J. Appl. Phys. 30, L1938(1991).
[7] Y. Ohmore, and K. YoShino, Jap. J. Appl. Phys. 30, L1941(1991).
[8] G. Mueller, Electroluminescence I-Semiconductor and Semimetals Vol. 64,Academic Press, San Diego, CA USA, 209 (2000).
[9] N. J. Turro, Modern Molecular Photochemistry, University science books, Mill Valley, California, USA, 18 (1991).
[10] N. J. Turro, Modern Molecular Photochemistry, University science books,Mill Valley, California, USA, 18 (1991).
[11] C. W. Tang, S. A. VanSlyke, and C. H. Chen, J. Appl. Phys., 65, 361(1989).
[12] C.H. Chen, C.W. Tang, J. Shi, and K.P. Klubek, Thin Solid Films, 363, 327 (2000).
[13] Y. Hamada, H. Kanno, T. Tsujioka, H. Takahashi, and T. Usuki, Appl.
Phys.Lett., 75, 1682 (1999).
[14] X. H. Zhang, B. J. Chen, X. Q. Lin, O. Y. Wong, C. S. Lee, H. L. Kwong,S. T. Lee, and S. K. Wu, Chem. Mater., 13, 1565 (2001).
[15] K. R. J. Thomas, J. T. Lin, Y. T. Tao, C. H. Chuen, Adv. Mater., 14, 822 (2002).
[16] C. H. Chen, J. Shi, Coord. Chem. Rev., 171, 161 (19989).
[17] C. H. Chen, C. W. Tang, Appl. Phys. Lett., 79, 3711 (2001).
[18] Y. Kijima, N. Asai, and S. I. Tamura, Jpn. J. Appl. Phys., 38, 5274 (1999).
[19] C. Hosokawa, H. Higashi, H. Nakamura, and T. Kusumoto, Appl. Phys. Lett.,67, 3853 (1995).
[20] Y. Li, M. K. Fung, Z. Xie, S. T. Lee, L. S. Hung, and J. Shi, Adv.Mater., 14, 1317 (2002).
[21] X. Y. Jiang, Z. L. Zhang, X. Y. Zheng, Y. Z. Wu, and S. H. Xu, Thin Solid Films, 401, 251 (2001).
[22] L. M. Leung, W. Y. Lo, S. K. So, K. M. Lee, and W. K. Choi, J. Am. Chem.Soc., 122, 5640 (2000).
[23] Y. Liu, J. Guo, J. Feng, H. Zhang, Y. Li, and Y. Wang, Appl. Phys. Lett.,78, 1200 (2001).
[24] Y. Kim, J. G. Lee, and S. Kim, Adv. Mater., 11, 1463 (1999).
[25] Z. Gao, C. S. Lee, I. Bello, S. T. Lee, R. M. Chen, T. Y. Luh, J. Shi and C. W. Tang, Appl. Phys. Lett., 74, 865 (1999).
[26] H. T. Shih, C. H. Lin, H. H. Shih, and C. H. Cheng, Adv. Mater., 14, 1409 (2002).
[27] C. C. Wu, Y. T. Lin, H. H. Chiang, T. Y. Cho, C. W. Chen, K. T. Wong, Y.L. Liao, G. H. Lee, and S. M. Peng, Appl. Phys. Lett., 81, 577 (2002).
[28] P. K. H. HO, J. S. Kim, J. H. Burroughes, H. Becker, S. F. Y. Li, T. M. Brown, F. Cacialli, and R. H. Friend, Nature, 404, 481 (2000).
[29] Y. Cao, I. D. Parker, G. Yu, C. Zhang, and A. J. Heeger, Nature, 397, 414 (1999).
[30] M. A. Baldo, D. F. O’Brien, Y. You, A. Shoustikov, S. Sibley, M. E.Thompson, and S. R. Forrest, Nature, 395, 151 (1998).
[31] D. F. O’Brien, M. A. Baldo, M. E. Thompson, and S. R. Forrest, Appl. Phys. Lett., 74, 442 (1999). 64
[32] M. A. Baldo, S. Lamansky, P. E. Burrows, M. E. Thompson, and S. R.Forrest, Appl. Phys. Lett., 75, 4 (1999).
[33] C. Adachi, M. A. Baldo, M. E. Thompson, and S. R. Forrest, J. Appl.Phys., 90, 5048 (2001).
[34] A. A. Shoustikov, Y. You, and M. E. Thompson, IEEE Journal on Selected Topics in Quantum Electronics. 4, 3, (1998).
[35] 顧鴻壽著,光電有機電激發光顯示器,新文京開發出版社,台北,中華民國93年2月20日
[36] H. Murata, Charles D. Merritt, and Zakya H. Kafafi, IEEE Journal on Selected Topics in Quantum Electronics. Vol. 4, NO 1,119 (1998).
[37] T.-H. Liu, S.-F. Hsu,M.-H. Ho,C.-H. Lao,Y.-S. Wu,and C. –H Chenc,APPLIED PHYSICS LETTERS 88, 063508 _2006