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研究生:謝幸蓉
研究生(外文):Hsin-Jung Hsieh
論文名稱:以PDHF為發光層之高分子聚合物有機發光二極體的材料與元件之研究
論文名稱(外文):Device and material characteristics of polymer light emitting diode base on PDHF
指導教授:陳聰毅陳聰毅引用關係楊素華楊素華引用關係
指導教授(外文):Tsong-Yi ChenSu-Hua Yang
學位類別:碩士
校院名稱:國立高雄應用科技大學
系所名稱:電子與資訊工程研究所碩士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2007
畢業學年度:95
語文別:中文
論文頁數:101
中文關鍵詞:藍綠色聚合物二極體電洞數高分子
外文關鍵詞:PLEDLiF
相關次數:
  • 被引用被引用:0
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  • 下載下載:15
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本研究利用ITO/PEDOT:PSS/PDHF/LiF/Al結構成功地製作出一個藍綠色的有機發光二極體。藉由改變PEDOT:PSS旋轉塗佈的轉速,使電子電洞再結合的區域位於PDHF發光層中;改變PDHF旋轉塗佈的轉速,可將高分子鏈拉直,有利於電子的傳輸;改變PDHF熱退火溫度,可改善表面的粗糙度,有利於電子注入。最後,我們加入一層很薄的LiF幫助電子注入至PDHF發光層中,逹到平衡的電子電洞數。這個元件在13 V時之最大發光亮度為45.8 cd/m2,其CIE座標為 x = 0.23, y = 0.33。
A bluish-green polymer light-emitting diode (PLED) was successfully fabricated using ITO/PEDOT/PDHF/LiF/Al structure. By changing the spinning-rate for PEDOT:PSS coating, the electrons and holes recombination zone was in the PDHF layer; changing the spinning-rate for PDHF coating, the polymer chains would be stretched to help electrons transmission; changing the annealing temperature for PDHF film, that could improve the surface roughness to help electrons injection. Finally, we inserted a very thin LiF layer to help electrons injecting into the PDHF layer and achieve the balance of electrons and holes. When the maximum luminance was 45.8 cd/m2 at 13 V, the CIE coordinates device were x = 0.23, y = 0.33.
Abstract (in Chinese) I
Abstract (in English) II
Acknowledgement IV
Content V
Table Captions VII
Figure Captions VIII
Chapter 1 1
Introduction 1
1-1 The History of Display 1
1-2 History of Light Emitting Diode 2
1-3 Classifications of Molecular Light Emitting Diode 4
1-4 Structure of Molecular Light Emitting Diodes 5
Chapter 2 6
Theory and Material Properties 6
2-1 Energy Band and Band Gap 6
2-2 The Photoluminescence Process 7
2-3 The Electroluminescence Process 8
2-4 The Concept of Excitons 10
2-5 Theory of Hopping Transport 12
2-6 Theory of Förster Energy and Charge Transfer 13
2-7 Miscibility Effect on the Energy Transfer 16
2-8 The Quenching Phenomena 17
2-8-1 Excimer Phenomena 17
2-8-2 Exciplex Phenomena 17
Chapter 3 18
Experimental Details and Measurement System Configurations 18
3-1 Spin Coating Process Basic Description 18
3-2 Experiment Procedures 20
3-2-1 Device Compounds 20
3-2-2 Device Fabrication 23
3-3 Characteristic Measurements 24
3-3-1 Current and Voltage Characteristics 24
3-3-2 Measurement System 25
3-3-3 The Cyclic Voltammetry Measurement of PDHF 25
Chapter 4 27
Results and Discussion 27
4-1 Absorption and Photoluminescence Spectra for PDHF 27
4-2 The Effect of PDHF Spinning-rate 28
4-3 The Effect of PEDOT:PSS Spinning-rate 30
4-4 The Effect of PDHF Annealing Temperature 33
4-5 Absorption and Photoluminescence Spectra for P3HT 34
4-6 The Effect of PDHF:P3HT 35
4-7 The Effect of Alq3 37
4-8 The Effect of LiF 39
Chapter 5 41
Conclusion 41
References 42
[1]J. R. Sheats, H. Antoinadis, M. Hueschen, W. Leonard, J. Miller, R. Moon, D. Roitman, A. Stooking, “Organic electroluminescent devices,” Science 273, pp. 884-887, 1996.
[2]M. Pope, H. Kallman, P. Magnante, “Electroluminescence in organic crystals,” J. Chem. Phys., vol. 38, pp. 2042-2045, 1963.
[3]W. Helfrich and W.G. Schneider, “Recombination radiation in anthracene crystals,” Phys. Rev. Lett., vol. 14, pp. 229-231, 1965.
[4]C. W. Tang and S. A. VanSlyke, “Organic electroluminescent diodes,” Appl. Phys. Lett. vol. 51, pp. 913-915, 1987.
[5]C. W. Tang, S. A. VanSlyke, and C. H. Chen, “Electroluminescence of doped organic thin films,” J. Appl. Phys., vol. 65, pp. 3610-3616, 1989.
[6]J. H. Burroughes, D. D. C. Bradley, A. R. Brown, R. N. Marks, K. Mackay, R. H. Friend, P. L. Burn, and A. B. Holmes, “Light-emitting diodes based on conjugated polymers,” Nature, vol. 347, pp. 539-541, 1990.
[7]D. Braun and A. J. Heeger, “Visible light emission from semiconducting polymer diodes,” Appl. Phys. Lett., vol. 58, pp. 1982-1984, 1991.
[8]D. D. C. Bradley, “Conjugated polymer electroluminescence,” Synth. Met., vol. 54, pp. 401-415,1993.
[9]R. F. Pierret, “Semiconductor device fundamentals,” Addison-Wesley Publishing Company, Inc., New York, 1996.
[10]Michael Rohlfing, Steven Louie G., “Optical excitations in conjugated polymers,” Phys. Rev. Lett., vol. 82, pp. 1959-1962, 1999.
[11]J. Morgado, F. Cacialli, R. Iqbal, S. C. Moratti, A. B. Holmes, G. Yahioglu, L. R. Milgrom, and R. H. Friend, “Förster energy transfer and control of the luminescence in blends of an orange-emitting poly(p-phenylenevinylene) and a red-emitting tetraphenylporphyrin,” Journal of materials chemistry., vol. 11, pp. 278-283, 2001.
[12]S. E. Shanheen, B. Kippelen, N. Peyghambarian, J. F. Wang, J. D. Anderson, E. A. Mash, P. A. Lee, and N. R. Armstrong, “Energy and charge transfer in organic light-emitting diodes: a soluble quinacridone study,” J. Appl. Phys., vol. 85, pp. 7939-7945,1999.
[13]C. J. Chang, Y. Y. Cheng, M. H. Wang, and C. S. Tuan, “Miscibility effect on the energy transfer induced luminescence enhancement of polyimide/PVK blends,” thin solid films, vol. 477, pp. 14-18, 2005.
[14]R. Katoh, S. Sinha, S. Murate, and M. Tachiya, “Origin of the stabilization energy of perylene excimer as studied by fluorescence and near-IR transient absorption spectroscopy,” Journal of Photochemistry and Photobiology A: Chemistry, vol. 145, pp. 23-34, 2001.
[15]M. Mazzeo, J. Thompson, R.I. R.Blyth. M. Anni, G. Gigli, and R. Cingolani, “White light from blue: white emitting organic LEDs based on spin coated blends of blue-emitting molecules,” Physica E 13, pp. 1243-1246, 2002.
[16]D. H. Hwang, J. H. Lee, J. I. Lee, C. H. Lee, Y. B. Kim, “White electroluminescent devices using polymer blends,” Mol. Cryst. Liq. Cryst., vol. 405 , pp. 127-135, 2003.
[17]A. K. Agrawal and S. A. Jenekhe, “Electrochemical properties and electronic structures of conjugated polyquinolines and polyanthrazolines,” Chem., Mater. vol. 8, pp. 579-589, 1996.
[18]Gufeng He, Jie Liu, Yongfang Li, Yang Yang, “Efficient polymer light-emitting diodes using conjugated polymer blends,” Appl. Phys. Lett., vol. 80, pp. 1891-1893,2002.
[19]Andressa M. Assaka, Paula C. Rodrigues, Alfredo R. M. de Oliveira, Liming Ding, Bin Hu, Frank E. Karasz, Leni Akcelrud, “Novel fluorine containing polyfluorenes with efficient blue electroluminescence,” Polymer 45, pp. 7071-7081,2004.
[20]Chih-Hao Chang, Jin-Long Liao, Ming-Chin Hung, and Show-An Chen, “Interface formation between poly(9,9-dioctylfluorene) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonicacid),” Appl. Phys. Lett., vol. 90, pp. 063506-063509,2007.
[21]Yu-Hua Niu, Qiong Hou, and Yong Cao, “Thermal annealing below the glass transition temperature: A general way to increase performance of light-emitting diodes based on copolyfluorenes,” Appl. Phys. Lett., vol. 81, pp. 634-636, 2002.
[22]Y. Shi, J. Liu, and Y. Yang, “Device performance and polymer morphology in polymer light emitting diodes: The control of thin film morphology and device quantum efficiency,” Journal of Applied Physics, vol. 87, pp. 4254-4263, 2000.
[23]A. Dogariu, R. Gupta, A.J. Heeger, H. Wang, “Time-resolved Förster energy transfer in polymer blends,” Synth. Met., vol. 95, pp. 100-104, 1999.
[24]Tae-Woo Lee, O. Ok Park, Hyun Nam Cho, Jae-Min Hong, Chung Yup Kim, Young Chul Kim, “White emission from a ternary polymer blend by incomplete cascade energy transfer,” Synthetic Metals, vol. 122, pp. 437-441,2001.
[25] Jong-Min Kang, Moo-Jin Park, Suk-Myung Kim, Changhee Lee, Sung-Ho Jin, Do-Hoon Hwang, “Poly(arylenevinylene) blends for white light emitting diodes,” Current Applied Physics, vol. 6, pp. 756-759, 2006.
[26]Tae-Ho Kim, Hang Ken Lee, O Ok Park, Byung Doo Chin, Soo-Hyeong Lee, and Jai Kyeong Kim, “White-light-emitting diodes based on iridium complexes via efficient energy transfer from a conjugated polymer,” Adv. Funct. Mater., vol. 16, pp. 611-617, 2006.
[27]Tae-Ho Kim, Dong-Hee Yoo, Jong Hyeok Park, and O Ok Park, “Enhanced electrophorescence via highly efficient energy transfer from conjugated polymer,” Appl. Phys. Lett., vol. 86, pp. 171108-171111, 2005.
[28]R. G. Kepler, P. M. Beeson, S. J. Jacobs, M. B. Sindair, V. S. Valencia, P. A. Cahil, “Electron and hole mobility in tris(8-hydroxyquinolinolato-N1,O8) aluminum,” Appl. Phys. Lett., vol. 66, pp. 3618-3620, 1995.
[29]S. E. Shaheen, G. E. Jabbour, M. M. Morrel, Y. Kawabe, B. Kippelen, and N. Peyghambarian, “Bright blue organic light-emitting diode with improved color purity using a LiF/Al cathode,” J. Appl. Phys., vol. 84, pp. 2324-2327, 1998.
[30]X. Y. Deng, S. W. Tong, and L. S. Hung, “Role of ultra-thin Alq3 and LiF layers in conjugated polymer light-emitting diodes,” Appl. Phys. Lett., vol. 82, pp. 3104-3106, 2003.
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