White organic light-emitting diodes (OLEDs) have shown potential applications in flat-panel displays and illuminations due to the simple processing
low cost
easy adjustment of emissive wavelength in visible region and flexibility. This paper reviews the various approaches to achieve white OLEDs and their recent progresses
and introduces the fabrication methods of white OLEDs based on our recent work. The existing problems and the trends are also discussed.
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. Elsbergen V van, Boemer H, Lobl H P, et al. OLEDs for lighting applications [J]. Proc. of SPIE,2008,7051:7051A(1-9).
. Tang C W, Vanslyke S A A. Organic electroluminescent diodes [J]. Appl. Phys. Lett., 1987, 51 (12):913-915.
. Sebastian R, Frank L, Gregor S, Karl L, et al. White organic light-emitting diodes with fluorescent tube efficiency [J]. Nature, 2009, 459:234-238.
. Duggal A R, Shiang J J, Heller C M, et al. Organic light-emitting devices for illumination quality white light [J]. Appl. Phys. Lett., 1987, 80 (19):913-915.
. 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, 440:908-912.
. Tokito S, Lijima T, Tsuzuki T, et al. High-efficiency white phosphorescent organic light-emitting devices with greenish-blue and red-emitting layers [J]. Appl. Phys. Lett., 2003, 83(12):2459-2461.
. Andrade B W, Holmes R J, Forrest S R. Efficient organic electrophosphorescent white-light-emitting devices with a triple doped emissive layer [J]. Adv. Mater., 2004, 16 (7):624-628.
. Huang J S, Hou W J, Li J H, et al. Improving the power efficiency of white light-emitting diode by doping electron transport material [J]. Appl. Phys. Lett., 2006, 89(13):133509(1-3).
. Matsumoto T, Nakada T, Endo J, et al. Multiphoton organic EL device having charge generation layer [J].SID Symposium Digest of Technical Paper,2003,34(1):979-981.
. Chang C C, Chen J F, Hwang S W, et al. Highly efficient white organic electroluminescent devices based on tandem architecture [J]. Appl. Phys. Lett., 2005, 87(25):253501(1-3).
. Liu J, Zhou Q G,Cheng Y X, et al. White electroluminescence from a single-polymer system with simultaneous two-color emission:Polyfluorene as the blue host and a 2,1,3-benzothiadiazole derivative as the orange dopant on the main chain [J]. Adv. Funct. Mater., 2006, 16(7):957-965.
. Guo F W, Ma D G. High efficiency white organic light-emitting diodes based on double recombination zones [J]. Optical Materials, 2006, 28(8-9):966-969.
. Guo F W, Ma D G, Wang L X, et al. High efficiency white organic light-emitting devices by effectively controlling exciton recombination region [J]. Semicond. Sci. Technol., 2005,20(3):310-313.
. Guo F W, Ma D G. White organic light-emitting diodes based on tandem structures [J]. Appl. Phys. Lett., 2005, 87(17):173510(1-3).
. Zhang H M, Dai Y F, Ma D G. Al/WO3/Au as the interconnecting layer for efficient tandem white organic light-emitting diodes [J]. J. Phys. D:Appl. Phys., 2008, 41(10):102006(1-4).
. Ho C L, Wong W Y, Wang Q, et al. A multifunctional iridium-carbazolyl orange phosphor for high-performance two-element WOLED exploiting Exciton-Managed fluorescence/phosphorescence [J]. Adv. Funct. Mater., 2008, 18(6):928-937.
. 王琦.高性能白光有机发光二极管 .长春:中国科学院长春应用化学研究所,2009.
. Wang Q, Ding J Q, Ma D G, et al. Harvesting excitons via two parallel channels for efficient white organic LEDs with nearly 100% internal quantum efficiency:Fabrication and emission-mechanism analysis [J]. Adv. Funct. Mater., 2009, 19(1):84-95.
. Wang Q, Ding J Q, Ma D G, et al. Highly efficient single-emitting-layer white organic light-emitting diodes with reduced efficiency roll-off [J]. Appl. Phys. Lett., 2009, 94(10):103503(1-3).
. Wang Q, Ding J Q, Ma D G, et al. A high-performance tandem white organic LED combining highly effective white units and their interconnection layer [J]. J. Appl. Phys., 2009, 105(7):076101(1-3).
. Wang Q, Ding J Q, Ma D G, et al. Manipulating charges and excitons within a single-host system to accomplish efficiency/CRI/color-stability trade-off for high-performance OWLEDs [J]. Adv. Mater., 2009,21(2):2397-2401.
. You H, Ma D G. Efficient white organic light-Emitting diodes using europium complex as the red unit [J]. J. Phys. D:Appl. Phys., 2008, 41(15):155113(1-5).
. Xuan Y, Pan D C, Zhao N, et al. White electroluminescence from a poly(N-vinylcarbazole) layer doped with CdSe/CdS core-shell quantum dots [J]. Nanotechnology, 2006, 17(19):4966-4969.
. Zhang H M, You H, Wang W, et al. Organic white-light-emitting devices based on a multimode resonant microca-vity [J]. Semicond. Sci. Technol., 2006, 21(8):1094-1097.
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Related Author
HUANG Wei
ZHAI Bang-cheng
JIA Zhen-hong
LIU Li-ping
YANG Min
HU Tian-qing
YE Shang-hui
YU Zhi-nong
Related Institution
Nanjing University of Posts and Telecommunications, IAM Group
School of Optics and Photonics, Beijing Engineering Research Center of Mixed Reality and Advanced Display, Beijing Institute of Technology
Chongqing BOE Display Technology Co., Ltd.
BOE Technology Group Co., Ltd.
Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials, Institute of Flexible Electronics(Future Technology), Nanjing University of Posts and Telecommunications