Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A study of DSC using Ultrasonic and Thermal treatment on Photo-Electrode

염료감응형 태양전지 광전극 초음파 열처리에 관한 연구

  • Hong, Ji-Tae (Laser & Sensor Application Lab in the Department of Electrical Engineering) ;
  • Kim, Mi-Jeong (Laser & Sensor Application Lab in the Department of Electrical Engineering) ;
  • Sim, Ji-Yong (Laser & Sensor Application Lab in the Department of Electrical Engineering) ;
  • Seo, Hyun-Woong (Laser & Sensor Application Lab in the Department of Electrical Engineering) ;
  • Kim, Hee-Je (Laser & Sensor Application Lab in the Department of Electrical Engineering)
  • 홍지태 (부산대학교 전기공학과 레이저 및 센서응용실험실) ;
  • 김미정 (부산대학교 전기공학과 레이저 및 센서응용실험실) ;
  • 심지영 (부산대학교 전기공학과 레이저 및 센서응용실험실) ;
  • 서현웅 (부산대학교 전기공학과 레이저 및 센서응용실험실) ;
  • 김희제 (부산대학교 전기공학과 레이저 및 센서응용실험실)
  • Published : 2007.07.18
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Abstract

Recently, there were many researches for efficiency improvement of DSC. Among of these works, research of surface treatment is still a prerequisite for electron diffusion, light-harvesting and surface state of DSC.[1] Using of the surface treatment, it can be raise up porosity of $TiO_2$ nano-crystalline structure on photo-electrode. There are chemical, physical, electrical and optical methods which raise up its porosity. In this paper, we have designed and manufactured MOPA-type ultrasonic circuit (100W, frequency and duty variable). Manufactured ultrasonic circuit to use to force cavity density and power into $TiO_2$ paste. Then, we have optimized forcing time, frequency and duty of ultrasonic irradiation for surface treatment of photo-electrode of DSC. In I-V characteristic test of DSC, ultrasonic and thermal treated DSC shows 19% improved its efficiency against monolithic DSC. And it shows stability of light-harvesting from drastically change of light irradiation test.

Keywords