Dielectric function and degradation process of poly(triarylamine) (PTAA)

• Verfasst von: Sendner, Michael [VerfasserIn]
• Verfasst von: Trollmann, Jens [VerfasserIn]
• Verfasst von: Pucci, Annemarie [VerfasserIn]
• Titel: Dielectric function and degradation process of poly(triarylamine) (PTAA)
• Verf.angabe: Michael Sendner, Jens Trollmann, Annemarie Pucci
• E-Jahr: 2014
• Jahr: 4 September 2014
• Umfang: 5 S.
• Fussnoten: Gesehen am 07.12.2020
• Titel Quelle: Enthalten in: Organic electronics
• Ort Quelle: Amsterdam [u.a.] : Elsevier Science, 2000
• Jahr Quelle: 2014
• Band/Heft Quelle: 15(2014), 11, Seite 2959-2963
• DOI: doi:10.1016/j.orgel.2014.08.037
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Degradation
• Sach-SW: Infrared ellipsometry
• Sach-SW: Optical properties
• Sach-SW: Organic field effect transistor
• Sach-SW: PTAA
• Sach-SW: Thermo-oxidation
• K10plus-PPN: 1742197337

Abstract

We investigated the optical properties and the degradation process of the organic p-type semiconductor poly(triarylamine) (PTAA) in the mid infrared region. The dielectric function of PTAA was determined in the spectral region of 700 up to 6000cm−1 by modeling ellipsometric measurements. Due to degradation at 65°C, PTAA thin films developed carbonyl and hydroxyl features in the infrared spectra. Degradation under 85%RH additionally led to absorption signals of water. A degradation of the bare gold substrates was also observed. For bare gold films, morphology changed upon degradation and adsorption of hydrocarbons from the ambience took place.