The Mechanism of PEDOT: PSS Films with Organic Additives

Shui-Yang Lien; Po-Chen Lin; Wen-Ray Chen; Chuan-Hsi Liu; Kuan-Wei Lee; Na-Fu Wang; Chien-Jung Huang

doi:10.3390/cryst12081109

Crystals (Aug 2022)

The Mechanism of PEDOT: PSS Films with Organic Additives

Shui-Yang Lien,
Po-Chen Lin,
Wen-Ray Chen,
Chuan-Hsi Liu,
Kuan-Wei Lee,
Na-Fu Wang,
Chien-Jung Huang

Affiliations

Shui-Yang Lien: School of Opto-Electronic and Communication Engineering, Xiamen University of Technology, Xiamen 361024, China
Po-Chen Lin: Department of Applied Physics, National University of Kaohsiung, Kaohsiung University Rd., Kaohsiung 81148, Taiwan
Wen-Ray Chen: Department of Electronic Engineering, National Formosa University, Wenhua Rd., Yunlin 632301, Taiwan
Chuan-Hsi Liu: Department of Mechatronic Engineering, National Taiwan Normal University, Heping East Rd., Taipei 10610, Taiwan
Kuan-Wei Lee: Department of Electronic Engineering, I-Shou University, No.1, Sec. 1, Syuecheng Rd., Dashu District, Kaohsiung 84001, Taiwan
Na-Fu Wang: Department of Electronic Engineering, Center for Environmental Toxin and Emerging-Contaminant Research, Super Micro Mass Research & Technology Center, Cheng Shiu University, Chengcing Rd., Niaosong Dist., Kaohsiung 82146, Taiwan
Chien-Jung Huang: Department of Applied Physics, National University of Kaohsiung, Kaohsiung University Rd., Kaohsiung 81148, Taiwan

DOI: https://doi.org/10.3390/cryst12081109
Journal volume & issue: Vol. 12, no. 8
p. 1109

Abstract

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This article demonstrates changes in the structures of poly (3,4-ethylene dioxythiophene): polystyrene sulfonate (PEDOT: PSS) with the addition of organic additives. The mechanisms of PEDOT: PSS are analyzed using X-ray photoelectron spectroscopy (XPS), cross-sectional images obtained from scanning electron microscopy (SEM), and contact angles. In this paper, a bond-breaking reaction and phase separation are successfully found to occur between PEDOT: PSS molecules and the organic additives. Our research also finds that this bond-breaking reaction and phase separation exist in the PEDOT: PSS–sorbitol–maltitol film at the same time. The addition of organic additives will improve the optical properties and the moisture stability of PEDOT: PSS films.

Published in Crystals

ISSN: 2073-4352 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Crystallography
Website: http://www.mdpi.com/journal/crystals/

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