The investigation of a localized transition of poly(p-phenylenevinylene)

Jihua Yang, Zonghao Huang, Yubai Bai, Dejun Wang, Yi Yin, Dongfang Shen, Xuhong Liu, Demin Xie, Rongshun Wang, Tiejin Li

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Poly(p-phenylenevinylene) thin film was prepared by spin-casting onto optically transparent ITO conduction glass substrate, and its photoelectric properties were studied with surface photovoltage spectra A localized subgap electronic transition is found, which causes the photovoltaic response with polarity opposite to that from band-to-band electronic transition (π-π*). With the help of the photovoltaic properties under the external electric field, this localized transition is assigned to a electronic transition from the valence band to a local state below the bottom of the conduction band.

Original languageEnglish (US)
Pages (from-to)419-422
Number of pages4
JournalThin Solid Films
Volume327-329
Issue number1-2
DOIs
StatePublished - 1998
Externally publishedYes

Bibliographical note

Funding Information:
We gratefully acknowledge the support of the National Natural Science Foundation of China.

Keywords

  • Electronic transition
  • Local state
  • Photovoltage
  • Poly(p-phenylenevinylene) thin film

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