Photocatalytic Reaction of Sensitizer, Rose Bengal and Supersensitizer, Allylthiourea

감응제 Rose Bengal과 초감응제 AIIylthiourea의 광촉매 반응

  • Received : 1997.07.15
  • Published : 1998.02.01

Abstract

In the dye sensitization for the solar energy conversion with a photoelectrochemical cell containing allylthiourea, the time profile of the sensitized photocurrent showed a rise and fall with the irradiation time. The dye solution before and after irradiation was analyzed by means of spectroscopic methods. A new precipitation reaction between sensitizer and supersensitizer and photobleaching of the dye appeared to be involved in the decreased photocurrent.

Allylthiourea를 포함하고 있는 광전기화학전지를 이용하여, 태양에너지 변환을 위한 염료 감응시, 감응전류는 광조사 시간 증가에 따라 증감 현상을 보였다. 광조사 전후 염료 용액을 분광학적으로 분석한 결과 감응제와 초감응제 사이의 침전형성 반응과 염료의 광표백 현상이 광전류 감소와 관련되어 있는 것으로 확인되었다.

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Acknowledgement

Supported by : 청주대학교