Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Development of Spray Thin Film Coating Method using an Air Pressure and Electrostatic Force

공압과 정전기력을 이용한 스프레이 박막 코팅 기술 개발

  • Kim, Jung Su (Printed Electronics Research Team, PEMS Co. Ltd.) ;
  • Kim, Dong Soo (School of Global Convergence Studies, Hanbat National Univ.)
  • 김정수 ((주)펨스 인쇄전자연구팀) ;
  • 김동수 (한밭대학교 글로벌융합학부)
  • Received : 2013.04.11
  • Accepted : 2013.05.24
  • Published : 2013.06.01
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Abstract

In many electro-devices, the vacuum process is used as the manufacturing process. However, the vacuum process has a problem, it is difficult to apply to a continuous process such as a R2R(roll to roll) printing process. In this paper, we propose an ESD (electro static deposition) printing process has been used to apply an organic solar cell of thin film forming. ESD is a method of liquid atomization by electrical forces, an electrostatic atomizer sprays micro-drops from the solution injected into the capillary with electrostatic force generated by electric potential of about several tens kV. The organic solar cell based on a P3HT/PCBM active layer and a PEDOT:PSS electron blocking layer prepared from ESD method shows solar-to-electrical conversion efficiency of 1.42% at AM 1.5G 1sun light illumination, while 1.86% efficiency is observed when the ESD deposition of P3HT/PCBM is performed on a spin-coated PEDOT:PSS layer.

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References

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