Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Effect of Doping State on Photoresponse Properties of Polypyrrole

  • Choi, Jongwan (Department of Chemistry and Life Science, Sahmyook University)
  • Received : 2021.12.09
  • Accepted : 2021.12.20
  • Published : 2021.12.31
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Abstract

Polypyrrole is an organic thermoelectric material which has been receiving extensive attention in recent years. Polypyrrole is applicable in various fields because its electrical properties are controllable by its doping concentration. In this study, the effects of the polypyrrole doping state on its photoresponse were investigated. The degree of doping was controlled by ammonia solution treatment. Then, the chemical structure as a function of the doping states was observed by Raman analysis. Moreover, the photocurrent and photovoltage characteristics for various doping states were measured by an asymmetrically irradiated light source. As the degree of doping increased, the electrical conductivity increased, which affected the photocurrent. Meanwhile, the photovoltage was related to the temperature gradient caused by light irradiation.

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Acknowledgement

이 조사 연구는 2020년 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원하는 연구과제(NRF-2020R1F1A1076752)로 수행되었기에 감사 드립니다.

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