High efficiency and brightness fluorescent organic light emitting diode by triplet-triplet fusion

Forrest, Stephen; Zhang, Yifan

Title: High efficiency and brightness fluorescent organic light emitting diode by triplet-triplet fusion

Patent · Tue Feb 10 00:00:00 EST 2015

OSTI ID:1169611

Forrest, Stephen; Zhang, Yifan

A first device is provided. The first device further comprises an organic light emitting device. The organic light emitting device further comprises an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer may include an organic host compound and at least one organic emitting compound capable of fluorescent emission at room temperature. Various configurations are described for providing a range of current densities in which T-T fusion dominates over S-T annihilation, leading to very high efficiency fluorescent OLEDs.

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Research Organization:: Univ. of Michigan, Ann Arbor, MI (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: SC0001013

Assignee:: The Regents of the University of Michigan (Ann Arbor, MI)

Patent Number(s):: 8,952,362

Application Number:: 13/600,651

OSTI ID:: 1169611

Country of Publication:: United States

Language:: English

References (89)

Electroluminescent device with modified thin film luminescent zone Tang, Ching W.; Chen, Chin H.; Goswami, Ramanuj https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4769292 US Patent Document 4,769,292	patent	September 1988
Electroluminescent device with organic electroluminescent medium VanSlyke, Steven A.; Tang, Ching W.; O'Brien, Michael E. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5061569 US Patent Document 5,061,569	patent	October 1991
Electroluminescent devices Friend, Richard Henry; Burroughes, Jeremy; Bradley, Donal https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5247190 US Patent Document 5,247,190	patent	September 1993
Transparent contacts for organic devices Forrest, Stephen R.; Thompson, Mark E.; Burrows, Paul E. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5703436 US Patent Document 5,703,436	patent	December 1997
Multicolor organic light emitting devices Forrest, Stephen R.; Thompson, Mark E.; Burrows, Paul E. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5707745 US Patent Document 5,707,745	patent	January 1998
High efficiency organic light emitting devices with light directing structures Bulovic, Vladimir; Forrest, Stephen R.; Burrows, Paul E. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5834893 US Patent Document 5,834,893	patent	November 1998
Vacuum deposited, non-polymeric flexible organic light emitting devices Gu, Gong; Burrows, Paul E.; Forrest, Stephen R. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5844363 US Patent Document 5,844,363	patent	December 1998
Multicolor display devices Thompson, Mark E.; Forrest, Stephen R. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6013982 US Patent Document 6,013,982	patent	January 2000
Fabrication of organic semiconductor devices using ink jet printing Sturm, James C.; Wu, Chung-Chih; Marcy, Duane https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6087196 US Patent Document 6,087,196	patent	July 2000
Displays having mesa pixel configuration Forrest, Stephen R.; Burrows, Paul E.; Garbuzov, Dmitri https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6091195 US Patent Document 6,091,195	patent	July 2000
Structure for high efficiency electroluminescent device Baldo, Marc A.; O'Brien, Diarmuid; Forrest, Stephen R. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6097147 US Patent Document 6,097,147	patent	August 2000
Method for patterning devices Kim, Changsoon; Burrows, Paul E.; Forrest, Stephen R. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6294398 US Patent Document 6,294,398	patent	September 2001
OLEDs doped with phosphorescent compounds Thompson, Mark E.; You, Yujian; Shoustikov, Andrei https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6303238 US Patent Document 6,303,238	patent	October 2001
Low pressure vapor phase deposition of organic thin films Forrest, Stephen R.; Burrows, Paul E.; Ban, Vladimir Sinisa https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6337102 US Patent Document 6,337,102	patent	January 2002
Method for patterning organic thin film devices using a die Kim, Changsoon; Burrows, Paul E.; Forrest, Stephen R. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6468819 US Patent Document 6,468,819	patent	October 2002
Material for luminescence element and luminescence element using the same Okada, Hisashi https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6528187 US Patent Document 6,528,187	patent	March 2003
Organic light emitting materials and devices Ma, Bin; Knowles, David B.; Brown, Cory S. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6687266 US Patent Document 6,687,266	patent	February 2004
Phosphorescent compounds and devices comprising the same Kwong, Raymond; Knowles, David B.; Thompson, Mark E. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6835469 US Patent Document 6,835,469	patent	December 2004
Metal coordination compound, luminescence device and display apparatus Takiguchi, Takao; Okada, Shinjiro; Tsuboyama, Akira https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6921915 US Patent Document 6,921,915	patent	July 2005
Organic light emitting devices having reduced pixel shrinkage Kwong, Raymond; Weaver, Michael S.; Ma, Bin https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7087321 US Patent Document 7,087,321	patent	August 2006
Binuclear compounds Thompson, Mark E.; Alleyne, Bert; Djurovich, Peter https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7090928 US Patent Document 7,090,928	patent	August 2006
Cyclometallated iridium carbene complexes for use as hosts Brooks, Jason; Li, Xiao-Chang; Alleyne, Bert https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7154114 US Patent Document 7,154,114	patent	December 2006
Phosphorescent compound, a phosphorescent composition and an organic light-emitting device Tokito, Shizuo; Suzuki, Mitsunori; Tanaka, Isao https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7250226 US Patent Document 7,250,226	patent	July 2007
Complexes with tridentate ligands Walters, Robert W.; Tsai, Jui-Yi; Mackenzie, Peter Borden https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7279704 US Patent Document 7,279,704	patent	October 2007
OLEDs utilizing multidentate ligand systems Ma, Bin; Walters, Robert W.; Kwong, Raymond https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7332232 US Patent Document 7,332,232	patent	February 2008
Phenyl and fluorenyl substituted phenyl-pyrazole complexes of Ir Thompson, Mark E.; Tamayo, Arnold; Djurovich, Peter https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7338722 US Patent Document 7,338,722	patent	March 2008
Luminescent compounds with carbene ligands Thompson, Mark E.; Tamayo, Arnold; Djurovich, Peter https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7393599 US Patent Document 7,393,599	patent	July 2008
Light emitting material and organic light-emitting device Takeuchi, Masataka; Naijo, Shuichi; Ito, Naoko https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7396598 US Patent Document 7,396,598	patent	July 2008
Process and apparatus for organic vapor jet deposition Shtein, Max; Forrest, Stephen R. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7431968 US Patent Document 7,431,968	patent	October 2008
Cationic metal-carbene complexes Mackenzie, Peter Borden; Walters, Robert W.; Brooks, Jason https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7445855 US Patent Document 7,445,855	patent	November 2008
Organometallic compounds for use in electroluminescent devices Lin, Chun; Tsai, Jui-Yi; Brooks, Jason https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7534505 US Patent Document 7,534,505	patent	May 2009
Organometallic complexes as phosphorescent emitters in organic LEDs Thompson, Mark; Djurovich, Peter; Lamansky, Sergey https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20020034656 US Patent Application 09/883734; 20020034656	patent-application	March 2002
Transition Metal Complex and Light-Emitting Device Igarashi, Tatsuya https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20020134984 US Patent Application 10/059109; 20020134984	patent-application	September 2002
Electronic Device Comprising Organic Compound Having P-Type Semiconducting Characteristics Son, Se-Hwan; Kim, Ok-Hee; Yoon, Seok-Hee https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20020158242 US Patent Application 09/914731; 20020158242	patent-application	October 2002
Deuterated Semi-Conducting Organic Compounds Used for Opto-Electronic Devices Li, Xiao-Chang Charles; Ueno, Kazunori https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20030138657 US Patent Application 10/347682; 20030138657	patent-application	July 2003
Organic Light-Emitting Diodes and Methods for Assembly and Enhanced Charge Injection Marks, Tobin J.; Huang, Qinglan; Cui, Ji https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20030162053 US Patent Application 10/099131; 20030162053	patent-application	August 2003
White light emitting oleds from combined monomer and aggregate emission Thompson, Mark; Brooks, Jason; Adamovich, Vadim https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20030175553 US Patent Application 10/328914; 20030175553	patent-application	September 2003
Very Low Voltage, High Efficiency Phosphorescent OLED in a p-i-n Structure Forrest, Stephen; Pfeiffer, Martin https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20030230980 US Patent Application 10/173682; 20030230980	patent-application	December 2003
Light Emitting Element Ise, Toshihiro https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040036077 US Patent Application 10/644830; 20040036077	patent-application	February 2004
Organic Electroluminescent Device Igarashi, Tatsuya; Ise, Toshihiro https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040137268 US Patent Application 10/743023; 20040137268	patent-application	July 2004
Transparent electrodes Lu, Min-Hao Michael; Weaver, Michael https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040174116 US Patent Application 09/931948; 20040174116	patent-application	September 2004
Materials and Structures for Enhancing the Performance of Organic Light Emitting Devices Thompson, Mark E.; Kwong, Raymond; Tung, Yeh-Jiun https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050025993 US Patent Application 10/785287; 20050025993	patent-application	February 2005
Organic Electroluminescent Device Ogasawara, Jun; Igarashi, Tatsuy a.; Sano, Satoshi https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050112407 US Patent Application 10/990463; 20050112407	patent-application	May 2005
Organic Light Emitting Materials and Devices Lin, Chun; Ma, Bin; Knowles, David B. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20060008670 US Patent Application 10/886098; 20060008670	patent-application	January 2006
Stability OLED materials and devices Lin, Chun; Mackenzie, Peter B.; Walter, Robert W. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20060251923 US Patent Application 11/241981; 20060251923	patent-application	November 2006
Organic electroluminescent device Ise, Toshihiro https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20060263635 US Patent Application 11/416113; 20060263635	patent-application	November 2006
Metal complexes of cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1',2'-c]quinazoline ligands and isoelectronic and benzannulated analogs thereof Knowles, David B.; Lin, Chun; MacKenzie, Peter Borden https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070190359 US Patent Application 11/704585; 20070190359	patent-application	August 2007
Organic electroluminescent device having a hole conductor as an emitting layer Adachi, Chihaya; Tsutsui, Tetsuo; Saito, Shogo Applied Physics Letters, Vol. 55, Issue 15 https://doi.org/10.1063/1.101586	journal	October 1989
Nearly 100% internal phosphorescence efficiency in an organic light-emitting device Adachi, Chihaya; Baldo, Marc A.; Thompson, Mark E. Journal of Applied Physics, Vol. 90, Issue 10 https://doi.org/10.1063/1.1409582	journal	November 2001
High-efficiency red electrophosphorescence devices Adachi, Chihaya; Baldo, Marc A.; Forrest, Stephen R. Applied Physics Letters, Vol. 78, Issue 11 https://doi.org/10.1063/1.1355007	journal	March 2001
Material design of hole transport materials capable of thick-film formation in organic light emitting diodes Aonuma, Masaki; Oyamada, Takahito; Sasabe, Hiroyuki Applied Physics Letters, Vol. 90, Issue 18 https://doi.org/10.1063/1.2733627	journal	April 2007
Highly efficient phosphorescent emission from organic electroluminescent devices Baldo, M. A.; O'Brien, D. F.; You, Y. Nature, Vol. 395, Issue 6698, p. 151-154 https://doi.org/10.1038/25954	journal	September 1998
Very high-efficiency green organic light-emitting devices based on electrophosphorescence Baldo, M. A.; Lamansky, S.; Burrows, P. E. Applied Physics Letters, Vol. 75, Issue 1, p. 4-6 https://doi.org/10.1063/1.124258	journal	July 1999
Bright-blue electroluminescence from a silyl-substituted ter-(phenylene–vinylene) derivative Gao, Zhiqiang; Lee, C. S.; Bello, I. Applied Physics Letters, Vol. 74, Issue 6 https://doi.org/10.1063/1.123392	journal	February 1999
High Luminance in Organic Electroluminescent Devices with Bis(10-hydroxybenzo[h]quinolinato)beryllium as an Emitter Hamada, Yuji; Sano, Takeshi; Fujita, Masayuki Chemistry Letters, Vol. 22, Issue 5 https://doi.org/10.1246/cl.1993.905	journal	May 1993
Blue organic electrophosphorescence using exothermic host–guest energy transfer Holmes, R. J.; Forrest, S. R.; Tung, Y. -J. Applied Physics Letters, Vol. 82, Issue 15 https://doi.org/10.1063/1.1568146	journal	April 2003
Novel high Tg hole-transport molecules based on indolo[3,2-b]carbazoles for organic light-emitting devices Hu, Nan-Xing; Xie, Shuang; Popovic, Zoran D. Synthetic Metals, Vol. 111-112, p. 421-424 https://doi.org/10.1016/S0379-6779(99)00387-2	journal	June 2000
Highly Efficient Red-Emission Polymer Phosphorescent Light-Emitting Diodes Based on Two Novel Tris(1-phenylisoquinolinato-C2,N)iridium(III) Derivatives Huang, J.; Watanabe, T.; Ueno, K. Advanced Materials, Vol. 19, Issue 5, p. 739-743 https://doi.org/10.1002/adma.200601040	journal	March 2007
Highly Phosphorescent Bis-Cyclometalated Iridium Complexes Containing Benzoimidazole-Based Ligands Huang, Wei-Sheng; Lin, Jiann T.; Chien, Chin-Hsing Chemistry of Materials, Vol. 16, Issue 12 https://doi.org/10.1021/cm0498943	journal	June 2004
Anode modification in organic light-emitting diodes by low-frequency plasma polymerization of CHF3 Hung, L. S.; Zheng, L. R.; Mason, M. G. Applied Physics Letters, Vol. 78, Issue 5 https://doi.org/10.1063/1.1331639	journal	January 2001
Highly efficient phosphorescence from organic light-emitting devices with an exciton-block layer Ikai, Masamichi; Tokito, Shizuo; Sakamoto, Youichi Applied Physics Letters, Vol. 79, Issue 2 https://doi.org/10.1063/1.1385182	journal	July 2001
P-185: Low-Drive-Voltage OLEDs with a Buffer Layer Having Molybdenum Oxide Ikeda, Hisao; Sakata, Junichiro; Hayakawa, Masahiko SID Symposium Digest of Technical Papers, Vol. 37, Issue 1 https://doi.org/10.1889/1.2433672	journal	January 2006
Highly efficient and stable red phosphorescent organic light-emitting device using bis[2-(2-benzothiazoyl)phenolato]zinc(II) as host material Kanno, Hiroshi; Ishikawa, Kaori; Nishio, Yoshitaka Applied Physics Letters, Vol. 90, Issue 12 https://doi.org/10.1063/1.2643908	journal	March 2007
1,2,4-Triazole Derivative as an Electron Transport Layer in Organic Electroluminescent Devices Kido, Junji; Ohtaki, Chikau; Hongawa, Kenichi Japanese Journal of Applied Physics, Vol. 32, Issue Part 2, No. 7A https://doi.org/10.1143/JJAP.32.L917	journal	July 1993
Thermally stable multilared organic electroluminescent devices using novel starburst molecules, 4,4′,4″-Tri(N-carbazolyl)triphenylamine (TCTA) and 4,4′,4″-Tris(3-methylphenylphenylamino)triphenylamine (m-MTDATA), as hole-transport materials Kuwabara, Yoshiyuki; Ogawa, Hiromitsu; Inada, Hiroshi Advanced Materials, Vol. 6, Issue 9, p. 677-679 https://doi.org/10.1002/adma.19940060913	journal	September 1994
High operational stability of electrophosphorescent devices Kwong, Raymond C.; Nugent, Matthew R.; Michalski, Lech Applied Physics Letters, Vol. 81, Issue 1 https://doi.org/10.1063/1.1489503	journal	July 2002
Synthesis and Characterization of Phosphorescent Cyclometalated Iridium Complexes Lamansky, Sergey; Djurovich, Peter; Murphy, Drew Inorganic Chemistry, Vol. 40, Issue 7 https://doi.org/10.1021/ic0008969	journal	March 2001
Polymer phosphorescent light-emitting devices doped with tris(2-phenylpyridine) iridium as a triplet emitter Lee, Chang-Lyoul; Lee, Kyung Bok; Kim, Jang-Joo Applied Physics Letters, Vol. 77, Issue 15 https://doi.org/10.1063/1.1315629	journal	October 2000
Blue Phosphorescence from Iridium(III) Complexes at Room Temperature Lo, Shih-Chun; Shipley, Christopher P.; Bera, Raghu N. Chemistry of Materials, Vol. 18, Issue 21 https://doi.org/10.1021/cm061173b	journal	October 2006
Triplet luminescent dinuclear-gold( I ) complex-based light-emitting diodes with low turn-on voltage Ma, Yuguang; Zhou, Xuemei; Shen, Jiacong Applied Physics Letters, Vol. 74, Issue 10 https://doi.org/10.1063/1.123550	journal	March 1999
Thermally Stable Hole-Transporting Material for Organic Light-Emitting Diode: an Isoindole Derivative Mi, Bao-Xiu; Wang, Peng-Fei; Liu, Man-Wah Chemistry of Materials, Vol. 15, Issue 16 https://doi.org/10.1021/cm030292d	journal	August 2003
Highly Efficient Electrophosphorescent Devices with Saturated Red Emission from a Neutral Osmium Complex Niu, Yu-Hua; Tung, Yung-Liang; Chi, Yun Chemistry of Materials, Vol. 17, Issue 13 https://doi.org/10.1021/cm047709f	journal	June 2005
5,5‘-Bis(dimesitylboryl)-2,2‘-bithiophene and 5,5‘‘-Bis(dimesitylboryl)-2,2‘:5‘,2‘‘-terthiophene as a Novel Family of Electron-Transporting Amorphous Molecular Materials Noda, Tetsuya; Shirota, Yasuhiko Journal of the American Chemical Society, Vol. 120, Issue 37 https://doi.org/10.1021/ja9817343	journal	September 1998
Green fluorescent organic light-emitting device with external quantum efficiency of nearly 10% Okumoto, Kenji; Kanno, Hiroshi; Hamaa, Yuji Applied Physics Letters, Vol. 89, Issue 6 https://doi.org/10.1063/1.2266452	journal	August 2006
High efficiency molecular organic light-emitting diodes based on silole derivatives and their exciplexes Palilis, Leonidas C.; Murata, Hideyuki; Uchida, Manabu Organic Electronics, Vol. 4, Issue 2-3, p. 113-121 https://doi.org/10.1016/j.orgel.2003.08.006	journal	September 2003
Realizing Green Phosphorescent Light-Emitting Materials from Rhenium(I) Pyrazolato Diimine Complexes Ranjan, Sudhir; Lin, Shen-Yi; Hwang, Kuo-Chu Inorganic Chemistry, Vol. 42, Issue 4 https://doi.org/10.1021/ic0259181	journal	February 2003
Synthesis, Characterization, and Electron-Transport Property of Perfluorinated Phenylene Dendrimers Sakamoto, Youichi; Suzuki, Toshiyasu; Miura, Atsushi Journal of the American Chemical Society, Vol. 122, Issue 8 https://doi.org/10.1021/ja994083z	journal	March 2000
Starburst molecules based on π-electron systems as materials for organic electroluminescent devices Shirota, Yasuhiko; Kuwabara, Yoshiyuki; Okuda, Daisuke Journal of Luminescence, Vol. 72-74, p. 985-991 https://doi.org/10.1016/S0022-2313(96)00396-1	journal	June 1997
Efficient organic light-emitting diodes with phosphorescent platinum complexes containing N∧C∧N-coordinating tridentate ligand Sotoyama, Wataru; Satoh, Tasuku; Sawatari, Norio Applied Physics Letters, Vol. 86, Issue 15 https://doi.org/10.1063/1.1901826	journal	April 2005
High-efficiency white organic light emitting devices with three separate phosphorescent emission layers Sun, Yiru; Forrest, Stephen R. Applied Physics Letters, Vol. 91, Issue 26 https://doi.org/10.1063/1.2827178	journal	December 2007
Langmuir—Blodgett light-emitting diodes of poly(3-hexylthiophene) : electro-optical characteristics related to structure Östergård, T.; Paloheimo, J.; Pal, A. J. Synthetic Metals, Vol. 88, Issue 2, p. 171-177 https://doi.org/10.1016/S0379-6779(97)03856-3	journal	May 1997
Organic electroluminescent diodes Tang, C. W.; VanSlyke, S. A. Applied Physics Letters, Vol. 51, Issue 12 https://doi.org/10.1063/1.98799	journal	September 1987
Organic Light-Emitting Diodes based on Charge-Neutral Ru^II Phosphorescent Emitters Tung, Y.-L.; Lee, S.-W.; Chi, Y. Advanced Materials, Vol. 17, Issue 8, p. 1059-1064 https://doi.org/10.1002/adma.200401806	journal	April 2005
Organic electroluminescent devices with improved stability Van Slyke, S. A.; Chen, C. H.; Tang, C. W. Applied Physics Letters, Vol. 69, Issue 15 https://doi.org/10.1063/1.117151	journal	October 1996
Highly efficient electroluminescent materials based on fluorinated organometallic iridium compounds Wang, Y.; Herron, N.; Grushin, V. V. Applied Physics Letters, Vol. 79, Issue 4 https://doi.org/10.1063/1.1384903	journal	July 2001
Multifunctional Iridium Complexes Based on Carbazole Modules as Highly Efficient Electrophosphors Wong, Wai-Yeung; Ho, Cheuk-Lam; Gao, Zhi-Qiang Angewandte Chemie International Edition, Vol. 45, Issue 46, p. 7800-7803 https://doi.org/10.1002/anie.200602906	journal	November 2006
Preparation, Characterization, and Electroluminescence Characteristics of α-Diimine-type Platinum(II) Complexes with Perfluorinated Phenyl Groups as Ligands Nishida, Jun-ichi; Maruyama, Akihiro; Iwata, Takeshi Chemistry Letters, Vol. 34, Issue 4 https://doi.org/10.1246/cl.2005.592	journal	April 2005
First Examples of Alkenyl Pyridines as Organic Ligands for Phosphorescent Iridium Complexes Paulose, B. M. J. S.; Rayabarapu, D. K.; Duan, J.-P. Advanced Materials, Vol. 16, Issue 22, p. 2003-2007 https://doi.org/10.1002/adma.200400149	journal	November 2004
Phosphorescent Iridium Complexes Based on 2-Phenylimidazo[1,2- a ]pyridine Ligands: Tuning of Emission Color toward the Blue Region and Application to Polymer Light-Emitting Devices Takizawa, Shin-ya; Nishida, Jun-ichi; Tsuzuki, Toshimitsu Inorganic Chemistry, Vol. 46, Issue 10 https://doi.org/10.1021/ic0624322	journal	May 2007

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