光谱学与光谱分析 |
|
|
|
|
|
The Spectrogram Characteristics of Organic Blue-Emissive Light-Emitting Excitated YAG∶Ce Phosphor |
XI Jian-fei1,2,ZHANG Fang-hui1,2,MU Qiang1,ZHANG Mai-li1,2 |
1. Shaanxi Engineering Center for Display Devices,Xi’an 710021,China 2. School of Electrical & Information Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China |
|
|
Abstract It is demonstrated that the panchromatic luminescence devices with organic blue-emissive light-emitting was fabricated. This technique used down conversion, which was already popular in inorganic power LEDs to obtain white light emission. A blue OLED device with a configuration of ITO/2T-NATA(30 nm)/AND∶TBPe(50 Wt%, 40 nm)/Alq3(100 nm)/LiF(1 nm)/Al(100 nm) was prepared via vacuum deposition process, and then coated with YAG∶Ce phosphor layers of different thicknesses to obtain a controllable and uniform shape while the CIE coordinates were fine tuned. This development not only decreased steps of technics and degree of difficulty, but also applied the mature technology of phosphor. The results showed that steady spectrogram was obtained in the devices with phosphor, with a best performance of a maximum luminance of 13 840 cd·m-2 which was about 2 times of that of the devices without phosphor; a maximum current efficiency of 17.3 cd·A-1 was increased more two times more than the devices without phosphor. The emission spectrum could be adjusted by varying the concentration and thickness of the phosphor layers. Absoulte spectrogram of devices was in direct proportion with different driving current corresponding.
|
Received: 2010-02-06
Accepted: 2010-05-08
|
|
Corresponding Authors:
XI Jian-fei
E-mail: xjf605@yahoo.com.cn
|
|
[1] Tang C W,Vanslyke S A A. Appl. Phys. Lett.,1987,51(12):913. [2] Forrest S R, Org. Electron.,2003,4:45. [3] Sun Y R,Giebink N C,Kanno H,et al. Nature,2006,440:908. [4] Huang J S,Hou W J,Li J H,et aL. Appl. Phys. Lett.,2006,89(3):133509(1-3). [5] Sun Y R,Giebink N C,Kanno H,et al. Nature,2006,440:908. [6] CHENG Bao-mei,DENG Zhen-bo,XU Deng-hu, et al(程宝妹,邓振波,徐登辉). Optoelectronics·Laser(光电子·激光), 2007, 18(7): 896. [7] Chang C C,Chen J F,Hwang S W,et al. Appl. Phys. Lett., 2005,87(25):253501. [8] Lu M H, Weaver M S, Zhou T X, et al. Appl. Phys. Lett.,2002, 81: 3921. [9] Xie Z Y,Huang J S,Li C N,et al. Appl. Phys. Lett., 1999,74:641. [10] Duggal A R, Shiang J J, Heller C M, et al. Appl. Phys. Lett., 2002, 80: 3470. [11] Biswas P K,De A,Dua L K,et al. Applied Surface Science,2006,253(4):1953. |
[1] |
ZHAO Yuan, LÜ Zhao-yue*, DENG Jian, ZENG Guo-qing. The Emissive Mechanism of C545T Thin Layer at the Exciplex and Non-Exciplex Interfaces[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(12): 3711-3715. |
[2] |
YANG Jian1, 2, ZHAO Su-ling1, 2*, SONG Dan-dan1, 2, XU Zheng1, 2, QIAO Bo1, 2, WANG Peng1, 2, WEI Peng1, 2. Highly Efficient Solution Processed Blue Thermally Activated Delayed Fluorescent Organic Light-Emitting Devices with a Mixed Hole Injection Layer[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(04): 1028-1033. |
[3] |
YANG Yong-xin1,2, XU Zheng1,2*, ZHAO Su-ling1,2, QIAO Bo1,2,SONG Dan-dan1,2, LIANG Zhi-qin1,2, ZHU Wei1,2, XU Xu-rong1,2. Shape-Controlled Synthesis of NaMgF3∶Gd3+ Nanocrystals and Its Upconversion Photoluminescence Properties[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(01): 10-14. |
[4] |
FAN Bin1, LIU Jun2, QI Shi-mei3, ZHAO Wen-yu1*. Preparation and Luminescent Properties of Green Phosphors LaGaO3∶Tb3+,Sn4+[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(01): 65-70. |
[5] |
CHEN Xiao-bo1, LI Song1, ZHAO Guo-ying2, LONG Jiang-mi1, WANG Shui-feng1, ZHENG Dong1, WU Zheng-long1, MENG Shao-hua2, GUO Jing-hua1, XU Ling-zhi2, YU Chun-lei3, HU Li-li3. Luminescence of Erbium Doped Telluride Glass Enhanced by Surface Plasmon of Metallic Silver Nanoparticles[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(07): 2293-2298. |
[6] |
ZHANG Yong1,2, ZHU Jin-ming1, YANG Li-li1*, Lü Shi-quan1, WU Yan-qun1,CHU Xue-juan1. Effect of Dy3+ on Luminescence Properties of Tb3+ Activated Silicate Oxyfluoride Scintillating Glass[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(05): 1412-1419. |
[7] |
WANG Hao1, 2, ZHAO Su-ling1, 2*, XU Zheng1, 2, SONG Dan-dan1, 2, QIAO Bo1, 2, WANG Peng1, 2, ZHENG Wei-ye1, 2, WEI Peng1, 2. The Influence of Deep Trap on the Efficiency Decrease in PhOLEDs Based on Double Dopants Strategy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(04): 1018-1024. |
[8] |
ZHENG Jia-jin1, 2, LU Qiang1, ZHENG Rui-lin1, ZOU Hui1, YU Ke-han1, WEI Wei1. Preparation and Photoluminescence Properties of Fluorophosphate Glasses with High Efficient White Light Emission[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(01): 39-44. |
[9] |
HUANG Huan-huan, WANG Qian*, WU Li, LI Meng-xiao. The Luminescence Characteristics of Alumina Ceramic Powder by the Low Temperature Combustion Synthesis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(09): 2676-2680. |
[10] |
ZHU Wei-yi1, JIN Min-feng1, TU Xie-hao1, ZHANG Ye-feng1, YIN Yue-hong2, Lü Zhao-yue1*. Bimolecular Excited States Based on 3DTAPBP: Electromer and Exciplex[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(08): 2344-2349. |
[11] |
ZHENG Sheng-hui1, FU Xiao-jun1,2,4, LIU Ya-nan1, FU Xiao-yan1*, ZHANG Hong-wu3. Spectrum Properties of Mechanoluminescent Materials Sr2SiO4∶Eu, Dy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(07): 2032-2037. |
[12] |
ZANG Xue-mei1, ZHANG Yu-hang2, LI De-sheng2, ZHAO Xin2, WANG Zhi-qiang1, LIN Hai1, 2*. Photoluminescence Properties of Near-Ultraviolet SrAl2Si2O8∶Ce3+ Phosphors[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(11): 3360-3364. |
[13] |
CHEN Xiao-bo1, LI Song1, GUO Jing-hua1, ZHOU Gu1, FAN Ting-ting1, YU Chun-lei2, ZHENG Dong1, ZHAO Guo-ying3, TAO Jing-fu1, LIN Wei1, CHEN Luan1, HU Li-li2. Two-Photon, Three-Photon, Four-Photon Near-Infrared Quantum Cutting Luminescence of Er3+ Activator in Oxyfluoride Vitroceramics[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(08): 2619-2626. |
[14] |
SUN Shou-qiang, GU Mu*, CHEN Ting-ting, ZHANG Juan-nan, LIU Xiao-lin, LIU Bo, HUANG Shi-ming, NI Chen. Fabrication and Performance of Pixelated γ-CuI Scintillation Conversion Screens Based on Oxidized Silicon Micropore Arrays[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(05): 1566-1570. |
[15] |
HONG Xiao-xia1, 2, XU Zheng1, 2*, ZHAO Su-ling1, 2, QIAO Bo1, 2, ZHANG Cheng-wen1, 2, WANG Peng1, 2 . Study on the Overshoot Effect of Doped PhOLED with Transient Electroluminescence[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(03): 710-714. |
|
|
|
|