中国物理B ›› 2010, Vol. 19 ›› Issue (6): 67803-067803.doi: 10.1088/1674-1056/19/6/067803

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Confirmation on origin of primary electron in solid state cathodoluminescence

黄金昭, 李世帅, 冯秀鹏, 王培吉, 张仲   

  1. School of Science, University of Jinan, Jinan 250022, China
  • 收稿日期:2009-11-02 出版日期:2010-06-15 发布日期:2010-06-15
  • 基金资助:
    Project supported by the Doctoral Foundation of University of Jinan (Grant No.~XBS0845), the Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education, China (Grant No.~2010LOI01), the Natural Science Foun

Confirmation on origin of primary electron in solid state cathodoluminescence

Huang Jin-Zhao(黄金昭)† , Li Shi-Shuai(李世帅), Feng Xiu-Peng(冯秀鹏), Wang Pei-Ji(王培吉), and Zhang Zhong(张仲)   

  1. School of Science, University of Jinan, Jinan 250022, China
  • Received:2009-11-02 Online:2010-06-15 Published:2010-06-15
  • Supported by:
    Project supported by the Doctoral Foundation of University of Jinan (Grant No.~XBS0845), the Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education, China (Grant No.~2010LOI01), the Natural Science Foun

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摘要： This paper utilizes the brightness-voltage waveform curve to investigate the primary electron in solid state cathodoluminescence. The results indicate that the primary electron is from the interface state of SiO2/MEH-PPV (Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]) under the lower electric field which contributes to the 580-nm emission. With increasing the electric field, the 405-nm emission is obtained, and under this condition, the origin of the primary electron is mainly from tunneling.

Abstract: This paper utilizes the brightness-voltage waveform curve to investigate the primary electron in solid state cathodoluminescence. The results indicate that the primary electron is from the interface state of SiO2/MEH-PPV (Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]) under the lower electric field which contributes to the 580-nm emission. With increasing the electric field, the 405-nm emission is obtained, and under this condition, the origin of the primary electron is mainly from tunneling.

Key words: primary electron, solid state cathodoluminescence, organic--inorganic heterostructure

中图分类号:  (Cathodoluminescence, ionoluminescence)

  • 78.60.Hk
73.40.Gk (Tunneling) 73.20.-r (Electron states at surfaces and interfaces)