| 光谱学与光谱分析 |
|
|
|
|
|
| Tunneling Electroluminescence of the ZnO Nanorods/MEH-PPV Heterojunction Devices |
| YANG Yi-fan, ZHAO Su-ling*, GAO Song |
| Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China |
|
|
|
|
Abstract In the present paper, zinc oxide nanorods (ZnO-NRs) were synthesized by the hydrothermal method at lower temperature and the polymer poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) were used to fabricate an electroluminescent device based on the structure of “ITO/ZnO-seed/ZnO-NRs/MEH-PPV/Al”. The measurement of current-voltage curve shows that it has a well rectifying characteristic. When a reverse bias exceeding 17 volts was applied to the ZnO-NRs/MEH-PPV heterojunction, both emissions of ZnO and MEH-PPV were detected. And the intensity of near ultraviolet emission from ZnO is stronger than that of the orange-red emission belonging to MEH-PPV. It was also shown that the light power is gradually promoted with the increase in the reverse bias. Unfortunately, although carriers were injected into the heterojunction under the positive bias, we could not get any emissions. Its mechanism is attributed to the specificity of the organic inorganic hybrid heterojunction and the nanometer effects of ZnO-NRs. It is concluded that tunneling electroluminescence happens in this prepared device under the reverse bias.
|
|
Received: 2013-02-25
Accepted: 2013-05-12
|
|
|
|
Corresponding Authors:
ZHAO Su-ling
E-mail: slzhao@bjtu.edu.cn
|
|
[1] Tian Y, Ma X Y, Xiang L L, et al. Applied Physics Letters, 2011, 99(26): 1111.
[2] Ladhe R D, Gurav K V, Pawar S M, et al. Journal of Alloys and Compounds, 2012, 515: 80.
[3] Tseng Z L, Kao P C, Yang C S, et al. Applied Surface Science, 2012, 261: 360.
[4] Yan Y, Zhao S L, Xu Z, et al. Physics, Mechanics and Astronomy, 2011, 54(3): 453.
[5] Gholamkhass B, Kiasari N M, Servati P. Organic Electronics, 2012, 13: 945.
[6] Lukas Schmidt-Mende，Judith L. MacManus-Driscoll, Materials Today, 2007, 10(5): 40.
[7] Goh E S M, Yang H Y, Han Z J, et al. Applied Physics Letters, 2012, 101(26): 263506.
[8] Zhang Q B, Guo H H, Feng Z F, et al. Electrochimica Acta, 2010, 55(17): 4889.
[9] Sun X W, Huang J Z, Wang J X, et al. Nano Letters, 2008, 8: 1219.
[10] Tu M L, Su Y K, Wu S S, et al. Synthetic Metals, 2011, 161: 450.
[11] Zaman S, Zainelabdin A, Amin G, et al. Journal of Applied Physics, 2012, 112(6): 064324.
[12] Zhao S L, Kan P Z, Xu Z, et al. Organic Electronics, 2010, 11(5): 789.
[13] Amorim C A, Cavallari M R, Santos G, et al. Journal of Non-Crystalline Solids，2012, 358(3): 484.
[14] Lin C J, Tian Q, Wang Y S. Physics Experimentation, 2006, 26(6): 12.
[15] Huang J Z, Li S S, Feng X P. Acta Physica Sinica, 2010, 59(8): 5840. |
| [1] |
GUO Cheng-shi1, 2, MA Dong-hao1, ZHANG Cong-zhi1, ZHANG Jia-bao1*, CAI Tai-yi1, 3, ZHOU Gui-xiang1, CHEN Jie1. The Structural Characteristics of Organic-Inorganic Complexes and the Mechanism of Its Influences on Soil Color in the Calci-Aquic Vertisols[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(08): 2434-2439. |
| [2] |
ZHENG Xu-gang1, 2, SONG Dan-dan1, 2, ZHAO Su-ling1, 2, QIAO Bo1, 2, SHEN Chong-yu3, XU Zheng1, 2*. Effect of Water Vapor Treatment on the Performance of Quantum Dot Light-Emitting Diodes[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(04): 1034-1039. |
| [3] |
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. |
| [4] |
LI Zhao, CAO Jing, WANG Yong-feng. Synthesis and Spectral Properties of Phosphors Based on Schiff Base Complexes[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(09): 2879-2882. |
| [5] |
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. |
| [6] |
CHEN Yi-xiang, ZHAO Su-ling*, XU Zheng, ZHANG Cheng-wen, XU Xu-rong. The Establishment and the Application of the Electroluminescence Decay Measurement System[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(07): 1993-1996. |
| [7] |
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. |
| [8] |
WANG Guang-hua1,2, ZHAO Hui-qiong1,2, DENG Rong-bin1, DUAN Yu1,2, SUN Hao1, ZHANG Xiao-dan1,2, ZHOU Qin1, QIAN Jin-mei1, WAN Rui-min1,2, JI Hua-xia1, JI Rong-bin2. Research on the Preparation and Chromaticity Coordinates Shift Mechanism of Organic White Light Top-Emitting Devices[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(11): 3758-3763. |
| [9] |
YANG Zhao-kun, ZHAO Su-ling*, XU Zheng*, HUANG Qing-yu . The Inside Charge Behavior of Organic Light-Emitting Diodes Investigated with Transient Electroluminescent Measurements[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(10): 3134-3137. |
| [10] |
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. |
| [11] |
DAI Shuang, YU Tong-jun*, LI Xing-bin, YUAN Gang-cheng, LU Hui-min . The Electroluminescence Spectra of InGaN/GaN Blue LEDs During Aging Time [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(02): 327-330. |
| [12] |
ZHANG Wei, ZHANG Fang-hui*, HUANG Jin . Effect of Spacer on Red and Green Phosphorescent Organic Light-Emitting Devices[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(02): 322-326. |
| [13] |
ZHANG Wei, ZHANG Fang-hui*, HUANG Jin . Properties of Phosphorescent Organic Light-Emitting Diodes with Different Doping Order on Light Emitting Layer[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(07): 1763-1766. |
| [14] |
MA Zhu1, YU Jun-sheng1*, JIANG Long-feng1, DONG Shou-cheng2, LI Zhen2*, HU Song3 . Spectra Characteristics and Electroluminescence Performance of Novel Fluorene Derivatives with Aggregation Fluorescence Enhancement[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(04): 935-939. |
| [15] |
LIU Sheng-qiang1, YU Jun-sheng1*, ZENG Yan-bo1, ZHAO Juan1, DU Chun-lei2 . Spectral Characteristics of White Organic Light-Emitting Devices Based on Phosphorescent System of Three Iridium Chelates [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(03): 636-641. |
|
|
|
|
