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Characterization of PEDOT:PSS Nanofilms Printed via Electrically Assisted Direct Ink Deposition with Ultrasonic Vibrations.
Zhu, Yizhen; Ravishekar, Rohan; Tang, Tengteng; Gogoi, Banashree; Gockley, Carson; Venu, Sushmitha; Alford, Terry L; Li, Xiangjia.
Afiliação
  • Zhu Y; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
  • Ravishekar R; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
  • Tang T; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
  • Gogoi B; School of Molecular Sciences, Arizona State University, Tempe, AZ 85287, USA.
  • Gockley C; School for Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85287, USA.
  • Venu S; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
  • Alford TL; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
  • Li X; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
Molecules ; 28(20)2023 Oct 16.
Article em En | MEDLINE | ID: mdl-37894588
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has emerged as a promising conductive polymer for constructing efficient hole-transport layers (HTLs) in perovskite solar cells (PSCs). However, conventional fabrication methods, such as spin coating, spray coating, and slot-die coating, have resulted in PEDOT:PSS nanofilms with limited performance, characterized by a low density and non-uniform nanostructures. We introduce a novel 3D-printing approach called electrically assisted direct ink deposition with ultrasonic vibrations (EF-DID-UV) to overcome these challenges. This innovative printing method combines programmable acoustic field modulation with electrohydrodynamic spraying, providing a powerful tool for controlling the PEDOT:PSS nanofilm's morphology precisely. The experimental findings indicate that when PEDOT:PSS nanofilms are crafted using horizontal ultrasonic vibrations, they demonstrate a uniform dispersion of PEDOT:PSS nanoparticles, setting them apart from instances involving vertical ultrasonic vibrations, both prior to and after the printing process. In particular, when horizontal ultrasonic vibrations are applied at a low amplitude (0.15 A) during printing, these nanofilms showcase exceptional wettability performance, with a contact angle of 16.24°, and impressive electrical conductivity of 2092 Ω/square. Given its ability to yield high-performance PEDOT:PSS nanofilms with precisely controlled nanostructures, this approach holds great promise for a wide range of nanotechnological applications, including the production of solar cells, wearable sensors, and actuators.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article