[1] | Chiang C K, Fincher C R, Jr, et al. Electrical Conductivity in Doped Polyacetylene[J]. Phys Rev Lett, 1977, 39:1098-1101. | [2] | Tang C W, Vanslyke S A. Organic Electroluminescent Diodes[J]. Appl Phys Lett, 1987, 51:913-915. | [3] | Baldo M A, O'Brien D F, You Y, et al. Highly Efficient Phosphorescent Emission from Organic Electroluminescent Devices[J]. Nature, 1998, 395:151-154. | [4] | Burroughes J H, Bradley D C, Brown A R, et al.Light-Emitting Diodes Based on Conjugated Polymers[J]. Nature, 1990, 347:539-541. | [5] | Gu G, Shen Z, Burrows P E, et al.Transparent Flexible Organic Light-Emitting Devices[J]. Adv Mater, 1997, 9(9):725-728. | [6] | Kido J, Nagai K. Organic Electroluminescent Devices Using Lanthanide Complexes[J]. J Alloys Compd, 1993, 192:30-33. | [7] | Vincett P S, Barlow W A, Hann R A, et al.Electrical Conduction and Low Voltage Blue Electroluminescence in Vacuum-Deposited Organic Films[J]. Thin Solid Films, 1982, 94:171-183. | [8] | Adachi C, Tsutsui T, Saito S. Organic Electroluminescent Device Having a Hole Conductor as an Emitting Layer[J]. Appl Phys Lett, 1989, 55:1489-1491. | [9] | Gao Z Q, Li Z H, Xia P F, et al.Efficienct Deep-Blue Organic Light-Emitting Diodes:Arylamine-Substituted Oligofluorenes[J]. Adv Funct Mater, 2007, 17(16):3194-3199. | [10] | Lee M T, Liao C H, Tsai C H, et al.Deep-Blue Doped Organic Light-Emitting Devices[J]. Adv Mater, 2005, 17(20):2493-2497. | [11] | Lee S J, Park J S, Yoon K J, et al.High-Efficiency Deep-Blue Light-Emitting Diodes Based on Phenylquinoline/Carbazole-Based Compounds[J]. Adv Funct Mater, 2008, 18(24):3922-3930. | [12] | Chou H H, Cheng C H. A Highly Efficient Universal Bipolar Host for Blue, Green, and Red Phosphorescent OLEDs[J]. Adv Mater, 2010, 22(22):2468-2471. | [13] | Chen D C, Su S J, Cao Y. Nitrogen Heterocycle-Containing Materials for Highly Efficient Phosphorescent OLEDs with Low Operating Voltage[J]. J Mater Chem C, 2014, 2:9565-9578. | [14] | Jou J H, Kumar S, Fang P H, et al.Highly Efficient Ultra-Deep Blue Organic Light-Emitting Diodes with a Wet- and Dry-Process Feasible Cyanofluorene Acetylene Based Emitter[J]. J Mater Chem C, 2015, 3:2182-2194. | [15] | Kim R, Lee S, Kim K H, et al.Extremely Deep Blue and Highly Efficient Non-Doped Organic Light Emitting Diodes Using an Asymmetric Anthracene Derivative with a Xylene Unit[J]. Chem Commun, 2013, 49:4664-4666. | [16] | Wu C L, Chang C H, Chang Y T, et al.High Efficiency Non-Dopant Blue Organic Light-Emitting Diodes Based on Anthracene-Based Fluorophores with Molecular Design of Charge Transport and Red-Shifted Emission Proof[J]. J Mater Chem C, 2014, 2:7188-7200. | [17] | Hu J Y, Pu Y J, Saroh F, et al.Bisanthracene-Based Donor-Acceptor-type Light-Emitting Dopants:Highly Efficient Deep-Blue Emission in Organic Light-Emitting Devices[J]. Adv Funct Mater, 2014, 24(14):2064-2071. | [18] | Yu Y, Wu Z X, Li Z F, et al.Highly Efficient Deep-Blue Organic Electroluminescent Devices(CIEy≈0.08) Doped with Fluorinated 9, 9'-Bianthracene Derivatives(Fluorophores)[J]. J Mater Chem C, 2013, 1:8117-8127. | [19] | Cho I, Kim S H, Kim J H, et al.Highly Effcient and Stable Deep-Blue Emitting Anthracene-Derived Molecular Glass for Versatile Types of Non-Doped OLED Appications[J]. J Mater Chem, 2012, 22:123-129. | [20] | Mu F Y, Zhuang S Q, Zhang W Z, et al.Efficient Blue Organic Light-Emitting Diodes Based on Triphenylimidazole Substituted Anthracene Derivatives[J]. Organic Electronics, 2015, 21:9-18. | [21] | Chou H H, Chen Y H, Hsu H P, et al.Synthesis of Diimidazolylstilbenes as n-Type Blue Fluorophores:Alternative Dopant Materials for Highly Efficient Electroluminescent Devices[J]. Adv Mater, 2012, 24(43):5867-5871. | [22] | Gao Z, Liu Y L, Wang Z M, et al.High-Efficiency Violet-Light-Emitting Materials Based on Phenanthro [9, 10-d]imidazole[J]. Chem Eur J, 2013, 19:2602-2605. | [23] | Zhang S, Yao L, Peng Q M, et al.Achieving a Significantly Increased Efficiency in Nondoped Pure Blue Fluorescent OLED:A Quasi-Equivalent Hybridized Excited State[J]. Adv Funct Mater, 2015, 25(11):1755-1762. | [24] | Chou P Y, Chou H H, Chen Y H, et al.Efficient Delayed Fluorescence via Triplet-Triplet Annihilation for Deep-Blue Electroluminescence[J]. Chem Commun, 2014, 50:6869-6870. | [25] | Uoyama H, Goushi K, Shizu K, et al.Highly Efficient Organic Light-Emitting Diodes from Delayed Fluorescence[J]. Nature, 2012, 492:234-238. | [26] | Higuchi T, Nakanotani H, Adachi C. High-Efficiency White Organic Light-Emitting Diodes Based on a Blue Thermally Activated Delayed Fluorescent Emitter Combined with Green and Red Fluorescent Emitters[J]. Adv Mater, 2015, 27(12):2019-2023. | [27] | Huang S P, Zhang Q S, Shiata Y, et al.Computational Prediction for Singlet- and Triplet-Transition Energies of Charge-Transfer Compounds[J]. J Chem Theory Comput, 2013, 9:3872-3877. | [28] | Wu S H, Aonuma M, Zhang Q S, et al.High-Efficiency Deep-Blue Organic Light-Emitting Diodes Based on a Thermally Activated Delayed Fluorescence Emitter[J]. J Mater Chem C, 2014, 2:421-424. | [29] | Kim M, Jeon S K, Hwang S H, et al.Stable Blue Thermally Activated Delayed Fluorescent Organic Light-Emitting Diodes with Three Times Longer Lifetime than Phosphorescent Organic Light-Emitting Diodes[J]. Adv Mater, 2015, 27(15):2515-2520. | [30] | Sasabe H, Toyota N, Nakanishi H, et al.3, 3'-Bicarbazole-Based Host Materials for High-Efficiency Blue Phosphorescent OLEDs with Extremely Low Driving Voltage[J]. Adv Mater, 2012, 24(24):3212-3217. | [31] | Seino Y, Sasabe H, Pu Y J, et al.High-Performance Blue Phosphorescent OLEDs Using Energy Transfer from Exciplex[J]. Adv Mater, 2014, 26(10):1612-1616. | [32] | Shin H, Lee S, Kim K H, et al.Blue Phosphorescent Organic Light-Emitting Diodes Using an Exciplex Forming Co-host with the External Quantum Efficiency of Theoretical Limit[J]. Adv Mater, 2014, 26(27):4730-4734. | [33] | Lee J H, Cheng S H, Yoo S Y, et al.An Exciplex Forming Host for Highly Efficient Blue Organic Light Emitting Diodes with Low Driving Voltage[J]. Adv Funct Mater, 2015, 25(3):361-366. | [34] | Bin J K, Cho N S, Hong J I, et al.New Host Material for High-Performance Blue Phosphorescent Organic Electroluminescent Devices[J]. Adv Mater, 2012, 24(19):2911-2915. | [35] | Park M S, Choi D H, Lee B S, et al.Fused Indole Derivatives as High Triplet Energy Hole Transport Materials for Deep Blue Phosphorescent Organic Light-Emitting Diodes[J]. J Mater Chem, 2012, 22:3099-3104. | [36] | Ye H, Chen D C, Liu M, et al.Pyridine-Containing Electron-Transport Materials for Highly Efficient Blue Phosphorescent OLEDs with Ultralow Operating Voltage and Reduced Efficiency Roll-Off[J]. Adv Funct Mater, 2014, 24(21):3268-3275. | [37] | Lee D R, Lee C W, Lee J Y. High Triplet Energy Host Materials for Blue Phosphorescent Organic Light-Emitting Diodes Derived from Carbazole Modified Orthophenylene[J]. J Mater Chem C, 2014, 2:7256-7263. | [38] | Wang X D, Wang S M, Ma Z H, et al.Solution-Processible 2, 2'-Dimethyl-biphenyl Cored Carbazole Dendrimers as Universal Hosts for Efficient Blue, Green, and Red Phosphorescent OLEDs[J]. Adv Funct Mater, 2014, 24(22):3413-3421. | [39] | Fukagawa H, Yokoyamma N, Irisa S, et al.Pyridoindole Derivative as Electron Transporting Host Material for Efficient Deep-Blue Phosphorescent Organic Light-Emitting Diodes[J]. Adv Mater, 2010, 22(42):4775-4778. | [40] | Shih C H, Rajamalli P, Wu C A, et al.A High Triplet Energy, High Thermal Stability Oxadiazole Derivative as the Electron Transporter for Highly Efficient Red, Green and Blue Phosphorescent OLEDs[J]. J Mater Chem C, 2015, 3:1491-1496. | [41] | Su S J, Cai C H, Tankmatsu J, et al.A Host Material With a Small Singlet-Triplet Exchange Energy for Phosphorescent Organic Light-Emitting Diodes:Gust, Host, and Exciplex Emission[J]. Org Electron, 2012, 13:1937-1947. | [42] | Gong S L, Chang Y L, Wu K L, et al.High-Power-Efficiency Blue Electrophosphorescence Enabled by the Synergistic Combination of Phosphine-Oxide-Based Host and Electron-Transporting Materials[J]. Chem Mater, 2014, 26:1463-1470. | [43] | Kim M, Lee J Y. Engineering the Substitution Position of Diphenylphosphine Oxide at Carbazole for Thermal Stability and High External Quantum Efficiency Above 30% in Blue Phosphorescent Organic Light-Emitting Diodes[J]. Adv Funct Mater, 2014, 24(26):4164-4169. | [44] | Ding L, Dong S C, Jiang Z Q, et al.Orthogonal Molecular Structure for Better Host Material in Blue Phosphorescence and Larger OLED White Lighting Panel[J]. Adv Funct Mater, 2015, 25(4):645-650. | [45] | Jeon S O, Yook K S, Joo C W, et al.High-Efficiency Deep-Blue-Phosphorescent Organic Light-Emitting Diodes Using a Phosphine Oxide and a Phosphine Sulfide High-Triplet-Energy Host Material with Bipolar Charge-Transport Properties[J]. Adv Mater, 2010, 22(16):1872-1876. | [46] | Liu H, Bai Q, Yao L, et al.Solution-Processable Hosts Constructed by Carbazole/PO Substituted Tetraphenylsilanes for Efficient Blue Electrophosphorescent Devices[J]. Adv Funct Mater, 2014, 24(37):5881-5888. | [47] | Lee C W, Lee J Y. Above 30% External Quantum Efficiency in Blue Phosphorescent Organic Light-Emitting Diodes Using Pyrido[2, 3-b]indole Derivatives as Host Materials[J]. Adv Mater, 2013, 25(38):5450-5454. | [48] | Yang X L, Xu X B, Zhou G J. Recent Advances of the Emitters for High Performance Deep-Blue Organic Light-Emitting Diodes[J]. J Mater Chem C, 2015, 3:913-944. | [49] | Jeon S O, Jang S E, Son H S, et al.External Quantum Efficiency Above 20% in Deep Blue Phosphorescent Organic Light-Emitting Diodes[J]. Adv Mater, 2011, 23(12):1436-1441. | [50] | Kim J B, Han S H, Yang K, et al.Highly Efficient Deep-Blue Phosphorescence from Heptafluoropropyl-Substituted Iridium Complexes[J]. Chem Commun, 2015, 51:58-61. | [51] | Jiang W, Yang W, Ban X X, et al.Synthesis of New Bipolar Materials Based on Diphenylphosphine Oxide and Triphenylamine Units: Efficient Host for Deep-Blue Phosphorescent Organic Light-Emitting Diodes[J]. Tetrahedron Lett, 2012, 68:9672-9678. | [52] | Wee K R, Cho Y J, Jeong S, et al.Carborane-Based Optoelectronically Active Organic Molecules: Wide Band Gap Host Materials for Blue Phosphorescence[J]. J Am Chem Soc, 2012, 134:17982-17990. | [53] | Kang Y J, Chang Y L, Lu J S, et al.Highly Efficient Blue Phosphorescent and Electroluminescent Ir(Ⅲ) Comlounds[J]. J Mater Chem C, 2013, 1:441-450. | [54] | Lee S, Kim S O, Shin H, et al.Deep-Blue Phosphorescence from Perfluoro Carbonyl-Substituted Iridium Complexes[J]. J Am Chem Soc, 2013, 135:14321-14328. | [55] | Kim C Y, Ha D G, Kang H H, et al.Synthesis and Characterization of New Blue Light Emitting Iridium Complexes Containing a Trimethylsiyl Group[J]. J Mater Chem, 2012, 22:22721-22726. | [56] | Jou J H, Kumar S, Agrawal A, et al.Approaches for Fabricating High Efficiency Organic Light Emitting Diodes[J]. J Mater Chem C, 2015, 3:2974-3002. | [57] | Dobbs K D, Feldman J, Marshall W J, et al.Phosphorescent Iridium(Ⅲ) Complexes of Cyclometalated 5-Aryl-1H-1, 2, 4-Triazole Ligands:Structural, Computational, Spectroscopic, and Device Studies[J]. J Phys Chem C, 2014, 118:27763-27771. | [58] | Holmes R J, Forrest S R, Sajoto T, et al.Saturated Deep Blue Organic Electrophorescence Using a Fluorine-Free Emitter[J]. Appl Phys Lett, 2005, 87:243-507. | [59] | Lee J, Oh H, Kim J, et al.Fluorine-Free Blue Phosphorescent Emitters for Efficient Phosphorescent Organic Light Emitting Diodes[J]. J Mater Chem C, 2014, 2:6040-6047. | [60] | Unger Y, Meyer D, Molt O, et al.Green-Blue Emitters:NHC-Based Cyclometalated [Pt(C^C*)(acac)] Complexes[J]. Angew Chem Int Ed, 2010, 49:10214-10216. | [61] | Hang X C, Fleetham T, Turner E, et al.Highly Efficient Blue-Emitting Cyclometalated Platinum(Ⅱ) Complexes by Judicious Molecular Design[J]. Angew Chem Int Ed, 2013, 52:6753-6756. | [62] | Sasabe H, Takamatsu J I, Motoyama T, et al.High-Efficiency Blue and White Organic Light-Emitting Devices Incorporating a Blue Iridium Carbene Complex[J]. Adv Mater, 2010, 22(44):5003-5007. | [63] | Jeon S O, Jang S E, Son H S, et al.External Quantum Efficiency Above 20% in Deep Blue Phosphorescent Organic Light-Emitting Diodes[J]. Adv Mater, 2011, 23(12):1436-1441. | [64] | Li G, Fieetham T, Li J. Efficient and Stable White Organic Light-Emitting Diodes Employing a Single Emitter[J]. Adv Mater, 2014, 26(18):2931-2936. | [65] | Li K, Cheng G, Ma C S, et al.Light-Emitting Platinum(Ⅱ) Complexes Supported by Tetradentate Dianionic Bis(N-Heterocyclic Carbene) Ligands: towards Robust Blue Electrophosphors[J]. Chem Sci, 2013, 4:2630-2644. | [66] | Steven C F, Chow P K, Glenna S M T, et al. Robust Phosphorescent Platinum(Ⅱ) Complexes Containing Tetradentate O^N^C^N Ligands: Excimeric Excited State and Application in Organic White-Light-Emitting Diodes[J]. Chem Eur J, 2013, 19:69-73. | [67] | Lin C H, Hsu C W, Liao J L, et al.Phosphorescent OLEDs Assembled Using Os(Ⅱ) Phosphors and a Bipolar Host Material Consisting of Both Carbazole and Dibenzophosphole Oxide[J]. J Mater Chem, 2012, 22:10684-10694. | [68] | Wu F S, Li J, Tong H B, et al.Phosphorescent Cu(Ⅰ) Complexes Based on Bis(pyrazol-1-yl-methyl)-Pyridine Derivatives for Organic Light-Emitting Diodes[J]. J Mater Chem C, 2015, 3:138-146. | [69] | Hashimoto M, Igawa S, Yashima M, et al.Highly Efficient Green Organic Light-Emitting Diodes Containing Luminescent Three-Coordinate Copper(Ⅰ) Complexes[J]. J Am Chem Soc, 2011, 133:10348-10351. | [70] | Hu G, Guo L, Wei S, et al.An Oxadiazole-Functionalized Ligand and Its Yellow-Emitting Re(Ⅰ) Complex for Organoelectronic Application[J]. Opt Mater, 2012, 34:1303-1309. | [71] | Mizoguchi S K, Santos G, Andrade A M, et al.Luminous Efficiency Enhancement of PVK Based OLEDs with Fac-[ClRe(CO)3(bpy)][J]. Synth Met, 2011, 161:1972-1975. | [72] | Ko Y W, Chung C H, Lee J H, et al.Efficient White Organic Light Emission by Single Emitting Layer[J]. Thin Solid Films, 2003, 426(1/2):246-249. | [73] | Deshpande R S, Bulovic V, Forrest S R. White-Light-Emitting Organic Electroluminescent Devices Based on Interlayer Sequential Energy Transfer[J]. Appl Phys Lett, 1999, 75(7):888-890. | [74] | Parthasarathy G, Burrows P E, Khalfin V, et al.A Metal-Free Cathode for Organic Semiconductor Devices[J]. Appl Phys Lett, 1998, 72(17):2138-2140. | [75] | Duggal A R, Shiang J, Heller C M. Organic Light-Emitting Devices for Illumination Quality White Light[J]. Appl Phys Lett, 2002, 80(19):3470-3472. | [76] | Kido J, Hongawa K, Okuyama K, et al.White Light-Emitting Organic Electroluminescent Devices Using the Poly(Nvinylcarbazole) Emitter Layer doped with Three Fluorescent Dyes[J]. Appl Phys Lett, 1994, 64(7):815-817. | [77] | Sasabe H, Takamatsu J, Motoyama T, et al.High-Efficiency Blue and White Organic Light-Emitting Devices Incorporating a Blue Iridium Carbene Complex[J]. Adv Mater, 2010, 22(44):5003-5007. | [78] | Li Y, Li F, Zhang J H, et al.Improved Light Extraction Efficiency of White Organic Light-Emitting Devices by Biomimetic Antireflective Surfaces[J]. Appl Phys Lett, 2010, 96(15):153305-153307. | [79] | Lee S, Shin H, Kim J. High-Efficiency Orange and Tandem White Organic Light-Emitting Diodes Using Phosphorescent Dyes with Horizontally Oriented Emitting Dipoles[J]. Adv Mater, 2014, 26(33):5864-5868. | [80] | Tyagi P, Kumar A, Giri L I, et al.Conductive Cooling in White Organic Light Emitting Diode for Enhanced Efficiency and Life Time[J]. Appl Phys Lett, 2015, 106:013301-1. | [81] | Sun N, Wang Q, Chen Y H, et al.High-Performance Hybrid White Organic Light-Emitting Devices without Interlayer Between Fluorescent and Phosphorescent Emissive Regions[J]. Adv Mater, 2014, 26(10):1617-1621. | [82] | Sun N, Wang Q, Zhao Y B, et al.A Hybrid White Organic Light-Emitting Diode with above 20% External Quantum Efficiency and Extremely Low Efficiency Roll-Off[J]. J Mater Chem C, 2014, 2:7494-7504. | [83] | Liu X J, Wang S M, Yao B, et al.New Deep-Red Heteroleptic Iridium Complex with 3-Hexylthiophene for Solution-Processed Organic Light-Emitting Diodes Emitting Saturated Red and High CRI White Colors[J]. Org Electron, 2015, 21:1-8. |
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