| 3 | Investigation of Localized Transition of MEH-PPV by SPS显示文摘The investigations of surface photovoltage spectra are performed on thin films of poly[2 methoxy 5 (2′ ethyl hexyloxy) 1, 4 phenylene vinylene] in order to determine its photoelectric properties. It is found that a localized subgap electronic transition causes a polarity opposite band to band electronic transition(π-π *). This transition results in an electronic level transition from the valence band to a local state in the conduction band. | KANG Bo nan 1, HUANG Zong hao 2, XIE Teng feng 5, CHEN Li chun 3, WANG De jun 5, CHANG Yu chun 1, LIU Yang 1, SONG Jun feng 1, WANG Rong shun 2, CHANG R P H 4, DU Guo tong 1 (1.State Key Lab. on Integrated Optoelectron., Jilin U | 2002 | Semiconductor Photonics and Technology2002，8，3： | 1 |
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