Blade coating system for organic electronics

Viviane N. Hamanaka, Remco J. Van Dasselaar, Marcos H.M.O. Hamanaka, Natanael L. Dias, Vinicius L. Pimentel, Maria Cecilia Q. Bazetto, Hany Aziz, Fernando J. Fonseca

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


In this work we show the project and fabrication of a home-made blade coating system for deposition of solutions of organic semiconductor materials. The system was used for deposition of PEDOT:PSS, a common hole injection material in solution based organic light emitting diodes (OLEDs). Phosphorescent OLEDs were assembled with PEDOT:PSS deposited by blade coating and also by spin coating for comparison. Both devices presented similar performance with low leakage current and driving voltages around 6 V (at 20 mA/cm2). The efficiency for both devices was very similar (EQE ∼ 17%, at 20 mA/cm2) showing that the PEDOT:PSS film obtained by blade coating has similar hole injection properties and performance as the film deposited by spin coating.

Original languageEnglish
Title of host publicationSBMicro 2019 - 34th Symposium on Microelectronics Technology and Devices
ISBN (Electronic)9781728119090
Publication statusPublished - Aug 2019
Event34th Symposium on Microelectronics Technology and Devices, SBMicro 2019 - Sao Paulo, Brazil
Duration: 26 Aug 201930 Aug 2019
Conference number: 34


Conference34th Symposium on Microelectronics Technology and Devices, SBMicro 2019
Abbreviated titleSBMicro 2019
CitySao Paulo


  • blade coating
  • OLED
  • Organic electronics
  • solution coating


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