[1] WU X X, LI F S, WU W, et al. Flexible organic light emitting diodes based on double-layered graphene/PEDOT: PSS conductive film formed by spray-coating[J]. Vacuum, 2014, 101: 53-56.

[2] CHIME A C, FISCHER A P A, BENSMIDA S, et al. Analysis of optical and electrical responses of μ-OLED with metallized ITO coplanar waveguide electrodes submitted to nanosecond electrical pulses[J]. IEEE Transactions on Electron Devices, 2019, 66(5): 2282-2289.

[3] CHOI J H, LEE M, KANG K, et al. Adaptive color saturation control for low power RGBW OLED displays[J]. Journal of Display Technology, 2016, 12(8): 784-790.

[4] 关晓琳, 孟丽, 贾天明, 等. 液晶性直线型共轭芳炔衍生物的合成及电致发光性质[J]. 应用化学, 2018, 35(4): 426-435.

    GUAN X L, MENG L, JIA T M, et al. Synthesis and electroluminescent properties of a liquid crystalline linear conjugated arylacetylene derivative［J］. Chinese Journal of Applied Chemistry, 2018, 35(4): 426-435.

[5] 刘伟强,崔荣朕,武瑞霞,等. 蓝色延迟荧光材料及器件的研究进展[J]. 应用化学, 2019, 36(1): 1-9.

    LIU W Q,CUI R Z,WU R X, et al. Recent progress on blue delayed fluorescent materials and devices［J］. Chinese Journal of Applied Chemistry, 2019, 36(1): 1-9.(in Chinese)

[6] HU B, YAN L, SHAO M. Magnetic-field effects in organic semiconducting materials and devices[J]. Advanced Materials, 2009, 21(14/15): 1500-1516.

[7] SUN Y R, GIEBINK N C, KANNO H, et al. Management of singlet and triplet excitons for efficient white organic light-emitting devices[J]. Nature, 2006, 440(7086): 908-912.

[8] WANG Q, HO C L, ZHAO Y B, et al. Reduced efficiency roll-off in highly efficient and color-stable hybrid WOLEDs: the influence of triplet transfer and charge-transport behavior on enhancing device performance[J]. Organic Electronics, 2010, 11(2): 238-246.

[9] 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]. Advanced Materials, 2015, 27(12): 2019-2023.

[10] LIN B Y, EASLEY C J, CHEN C H, et al. Exciplex-sensitized triplet-triplet annihilation in heterojunction organic thin-film[J]. ACS Applied Materials & Interfaces, 2017, 9(12): 10963-10970.

[11] FENG D X, DONG D, LIAN L, et al. High efficiency non-doped white organic light-emitting diodes based on blue exciplex emission[J]. Organic Electronics, 2018, 56: 216-220.

[12] PARK Y S, LEE S, KIM K H, et al. Exciplex-forming co-host for organic light-emitting diodes with ultimate efficiency[J]. Advanced Functional Materials, 2013, 23(39): 4914-4920.

[13] SEINO Y, SASABE H, PU Y J, et al. High-performance blue phosphorescent OLEDs using energy transfer from exciplex[J]. Advanced Materials, 2014, 26(10): 1612-1616.

[14] SHIN H, LEE S H, 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]. Advanced Materials, 2014, 26(27): 47s-4734.

[15] KALINOWSKI J, COCCHI M, VIRGILI D, et al. Mixing of excimer and exciplex emission: a new way to improve white light emitting organic electrophosphorescent diodes[J]. Advanced Materials, 2007, 19(22): 4000-4005.

[16] XU T, ZHANG Y X, HUANG C C, et al. Highly simplified blue phosphorescent organic light-emitting diodes incorporating exciplex-forming co-host assisting energy transfer[J]. Journal of Luminescence, 2019, 206: 554-559.

[17] ZHANG L, CAI C, LI K F, et al. Efficient organic light-emitting diode through triplet exciton reharvesting by employing blended electron donor and acceptor as the emissive layer[J]. ACS Applied Materials & Interfaces, 2015, 7(45): 24983-24986.

[18] CHEN Z, LIU X K, ZHENG C J, et al. High performance exciplex-based fluorescence-phosphorescence white organic light-emitting device with highly simplified structure[J]. Chemistry of Materials, 2015, 27(15): 5206-5211.

[19] LUO D X, LI X L, ZHAO Y, et al. High-performance blue molecular emitter-free and doping-free hybrid white organic light-emitting diodes: an alternative concept to manipulate charges and excitons based on exciplex and electroplex emission[J]. ACS Photonics, 2017, 4(6): 1566-1575.

[20] 倪婷, 丁磊, 王江南, 等．基于激基复合物主体的高性能OLED器件[J]．液晶与显示, 2019, 34(9): 841-848．

    NI T, DING L, WANG J N, et al. OLED with high performance based on exciplex[J]. Chinese Journal of Liquid Crystals and Displays, 2019, 34(9): 841-848. (in Chinese)

[21] LIN H W, LIN W C, CHANG J H, et al. Solution-processed hexaazatriphenylene hexacarbonitrile as a universal hole-injection layer for organic light-emitting diodes[J]. Organic Electronics, 2013, 14(4): 1204-1210.

[22] 吴有智, 郑新友, 朱文清, 等．以Liq作为电子注入层的高效有机电致发光器件[J]．发光学报, 2003, 24(5): 473-476．

    WU Y Z, ZHENG X Y, ZHU W Q, et al. Efficiency improvement of organic electroluminescent devices by using Liq as an electron injection layer[J]. Chinese Journal of Luminescence, 2003, 24(5): 473-476. (in Chinese)

[23] MU X, WU X M, HUA Y L, et al. Low driving voltage in an organic light-emitting diode using MoO3/NPB multiple quantum well structure in a hole transport layer[J]. Chinese Physics B, 2013, 22(2): 027805.

[24] KANG J W, LEE S H, PARK H D, et al. Low roll-off of efficiency at high current density in phosphorescent organic light emitting diodes[J]. Applied Physics Letters, 2007, 90(22): 223508.

[25] JIANG Z L, TIAN W, KOU Z Q, et al. The influence of the mixed host emitting layer based on the TCTA and TPBi in blue phosphorescent OLED[J]. Optics Communications, 2016, 372: 49-52.

[26] KUE K W, SHENG R, DUAN Y, et al. Efficient non-doped monochrome and white phosphorescent organic light-emitting diodes based on ultrathin emissive layers[J]. Organic Electronics, 2015, 26: 451-457.

[27] XU T, YANG M J, LIU J, et al. Wide color-range tunable and low roll-off fluorescent organic light emitting devices based on double undoped ultrathin emitters[J]. Organic Electronics, 2016, 37: 93-99.

[28] WU M J, WANG Z J, LIU Y F, et al. Non-doped phosphorescent organic light-emitting devices with an exciplex forming planar structure for efficiency enhancement[J]. Dyes and Pigments, 2019, 164: 119-125.

[29] KALINOWSKI J, GIRO G, COCCHI M, et al. Unusual disparity in electroluminescence and photoluminescence spectra of vacuum-evaporated films of 1,1-bis ((di-4-tolylamino)phenyl) cyclohexane[J]. Applied Physics Letters, 2000, 76(17): 2352-2354.

[30] YOOK K S, LEE J Y. Narrow bandgap host material for high quantum efficiency yellow phosphorescent organic light-emitting diodes doped with iridium(Ⅲ) bis(4-phenylthieno[3,2-c]pyridine)acetylacetonate[J]. Journal of Luminescence, 2015, 161: 271-274.

[31] QI Y G, WANG Z J, HOU S H, et al. Color stable and highly efficient hybrid white organic light-emitting devices using heavily doped thermally activated delayed fluorescence and ultrathin non-doped phosphorescence layers[J]. Organic Electronics, 2017, 43: 112-120.

[32] LIU B Q, NIE H, ZHOU X B, et al. Manipulation of charge and exciton distribution based on blue aggregation-induced emission fluorophors: a novel concept to achieve high-performance hybrid white organic light-emitting diodes[J]. Advanced Functional Materials, 2016, 26(5): 776-783.

[33] KIM B S, LEE J Y. Engineering of mixed host for high external quantum efficiency above 25% in green thermally activated delayed fluorescence device[J]. Advanced Functional Materials, 2014, 24(25): 3970-3977.

[34] LIU B Q, TAO H, WANG L, et al. High-performance doping-free hybrid white organic light-emitting diodes: the exploitation of ultrathin emitting nanolayers (< 1 nm)[J]. Nano Energy, 2016, 26: 26-36.