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利用表面光电压谱研究MEH-PPV定域跃迁

康博南1, 黄宗浩2, 谢腾峰3, 王德军 3, 常玉春1,刘 杨1, 宋俊峰1, 张邦恒4, 杜国同 1   

  1. 1. 吉林大学电子科学与工程学院, 集成光电子学国家重点联合实验室, 长春 130023; 2. 东北师范大学化学系, 长春 130024; 3. 吉林大学化学科学学院, 长春 130023;4. 美国西北大学材料研究中心, 伊利诺斯 60208
  • 收稿日期:2002-01-29 修回日期:1900-01-01 出版日期:2002-04-26 发布日期:2002-04-26
  • 通讯作者: 康博南

Investigation of Localized Transition of MEH-PPV by SPS

KANG Bo-nan1, HUANG Zong-hao2, XIE Teng-feng 3, WANG De-jun3, CHANG Yu-chun1,LIU Yang1, SONG Jun-feng1, CHANG R P H4, DU Guo-tong1   

  1. 1. College of Electronic Science and Engineering, State Key Laborato ry on Integrated Optoelectronies,Jilin University, Changchun 130023, China;2. Department of Chemistry, Northeast Normal University, Changchun 130024, China;3. College of Chemistry, Jilin University, Changchun 130023, China;4. Materials Research Center, Northwestern University, Evanston, IL 60208-3108, USA
  • Received:2002-01-29 Revised:1900-01-01 Online:2002-04-26 Published:2002-04-26
  • Contact: KANG Bo-nan

摘要: 利用外场调制的表面光电压谱研究聚合物材料MEH-PPV的定域跃迁(350 ~420 nm)与非定域跃迁(420~600 nm). 实验证明, 定域跃迁是由于电子从价带向导带中定域态能级跃迁的结果.

关键词: MEH-PPV, 表面光电压, 定域态

Abstract: The surface photovoltage spectra of thin films of poly[2-methoxy-5-(2-ethyl-hexyloxy)-1, 4-phenylene vinylene] were determined in order to determine their localized transition(350~420 nm)and delocalized transition(420~600 nm). The experiments demonstrated that the localized transition would be attributed to the electronic transition from the valence band to a local state in the conduction band.

Key words: MEH-PPV, surface photovoltage, local state

中图分类号: 

  • O644.1