| 光谱学与光谱分析 |
|
|
|
|
|
| Evaluating Acceleration Ability of Electrons of Different Acceleration Layers in Solid State Cathodoluminescence |
| LI Jun-ming, XU Zheng*, ZHAO Su-ling, ZHANG Fu-jun, SONG Dan-dan, LIU Xiao-dong, SONG Jing-lu, XU Xu-rong, WANG Yong-sheng |
| Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education and Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China |
|
|
|
|
Abstract Solid state cathodoluminescence is a brand-new excitation mode. In the device, electron acceleration layer plays a very important role in obtaining high energy hot electrons to excite organic luminescent materials in solid state cathodoluminescence. Two kinds of structural devices (A：ITO/MEH-PPV/SiO2/Al, B：ITO/MEH-PPV/ZnO/Al) were fabricated. The theoretical calculation and analysis show that the tunnel current and electric field was higher in SiO2 layer than that in ZnO layer under the same applied driving voltage. The experimental results show that the intensity of device A with SiO2 as electrons acceleration layer is stronger than that of device B with ZnO as electrons acceleration layer under the same driving voltage. And the result demonstrated that electrons in the conduction band of SiO2 can be heated to higher energy than that in ZnO.
|
|
Received: 2008-11-10
Accepted: 2009-02-20
|
|
|
|
Corresponding Authors:
XU Zheng
E-mail: zhengxu@bjtu.edu.cn
|
|
[1] Lei G, Xu X R. J. Electrochem. Soc., 1989, 137: 404.
[2] Xu X R, Lei G, Shen M Y. J. Crystal Growth, 1990, 101: 1004.
[3] Zhang F J, Xu Z, Teng F, et al. Mater. Sci. and Eng. B, 2005, 123: 84.
[4] Zhang F J, Xu Z, Teng F, et al, Journal of Luminescence, 2006, 117: 90.
[5] Xu Z, Qu C, Teng F, et al. Appl. Phys. Lett., 2005, 86: 1911.
[6] QU Chong, XU Zheng, TENG Feng, et al(曲 崇，徐 征，滕 枫，等). Acta Physica Sinica(物理学报), 2004, 53 (12): 4387.
[7] Fitting H J, Von Czarnowski A. Phys. Stat. Sol. A, 1986, 93: 385.
[8] ZHANG Fu-jun，XU Zheng，LIU Ling, et al(张福俊，徐 征，刘 玲，等). J. Rare Earth(中国稀土学报), 2005, 23(5): 590.
[9] Huang J Z, Xu Z, Zhao S L, et al. Solid State Communication, 2007, 142: 417.
[10] Yu W G, Xu Z, Teng, F, et al. Physics Letters A, 2005, 338: 402.
[11] XU Xu-rong, XU Zheng, TENG Feng, et al(徐叙瑢，徐 征，滕 枫，等). Chin. J. Lumin.(发光学报)，2003, 24(6): 553.
[12] LI Yuan, ZHAO Su-ling, XU Zheng, et al(李 远，赵谡玲，徐 征，等). Acta Physics Sinica(物理学报), 2007, 56(9): 5526. |
| [1] |
SONG Ling-yun1, CAI Chun-feng1, LIU Bo-zhi1, HU Lian1, ZHANG Bing-po1, WU Jian-zhong2*, BI Gang2, WU Hui-zhen1*. Influence of Parameters of ZnS Film on the Organic/Inorganic Composite Luminescence Devices[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(04): 898-902. |
| [2] |
QU Chong1, XU Zheng2, CHEN Yue-ning2 . Investigation of Luminescence Mechanism of Hybrid MEH-PPV/ SiO2 and Super Liner Characteristic of Amorphous SiO2 [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(12): 3223-3227. |
| [3] |
LI Yuan,ZHAO Su-ling*,XU Zheng,ZHANG Fu-jun,HUANG Jin-zhao,ZHAO De-wei,JIANG Wei-wei,YAN Guang. Study of Complex Accelerating Layer in SSCL[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(09): 1974-1978. |
| [4] |
LIU De-ang, XU Zheng, TENG Feng, ZHAO Su-ling, WANG Yong-sheng, XU Xu-rong* . The Influence of Frequency on Solid State Cathodoluminescence[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(06): 987-990. |
| [5] |
LIU Ming1, 2,CHEN Xiao-hong3,XU Zheng1,TENG Feng1,YI Li-xin1,GAO De-wen2,GUO Li-qun2 . Proof of Solid State Cathodoluminescence by Using Brightness Waveform [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(10): 1556-1559. |
| [6] |
LIU Shan-shan, TENG Feng, XU Zheng, LIU Ming, SUN Shi-ju, XU Xu-rong . The Influence of Thickness of SiO2 on the Electron Acceleration in Cathodluminescence-Like Emission [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(07): 790-794. |
|
|
|
|
