Pristine Poly(para-phenylene)

• Verfasst von: Strunk, Karl-Philipp [VerfasserIn]
• Verfasst von: Abdulkarim, Ali [VerfasserIn]
• Verfasst von: Freudenberg, Jan [VerfasserIn]
• Verfasst von: Pucci, Annemarie [VerfasserIn]
• Verfasst von: Bunz, Uwe H. F. [VerfasserIn]
• Verfasst von: Melzer, Christian [VerfasserIn]
• Verfasst von: Müllen, Klaus [VerfasserIn]
• Titel: Pristine Poly(para-phenylene)
• Titelzusatz: relating semiconducting behavior to kinetics of precursor conversion
• Verf.angabe: Karl-Philipp Strunk, Ali Abdulkarim, Sebastian Beck, Tomasz Marszalek, Jakob Bernhardt, Silke Koser, Wojciech Pisula, Daniel Jänsch, Jan Freudenberg, Annemarie Pucci, Uwe H. F. Bunz, Christian Melzer, and Klaus Müllen
• E-Jahr: 2019
• Jahr: May 3, 2019
• Umfang: 8 S.
• Fussnoten: Gesehen am 10.10.2019
• Titel Quelle: Enthalten in: American Chemical SocietyACS applied materials & interfaces
• Ort Quelle: Washington, DC : Soc., 2009
• Jahr Quelle: 2019
• Band/Heft Quelle: 11(2019), 21, Seite 19481-19488
• ISSN Quelle: 1944-8252
• DOI: doi:10.1021/acsami.9b03291
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1678712019

Abstract

We investigated unsubstituted poly(para-phenylene) (PPP), a long-desired prototype of a conjugated polymer semiconductor. PPP was accessed via thermal aromatization of a precursor polymer bearing kinked, solubility-inducing dimethoxycyclohexadienylene moieties. IR spectroscopy and Vis ellipsometry studies revealed that the rate of conversion of the precursor to PPP increases with temperature and decreases with film density, indicating a process with high activation volume. The obtained PPP films were analyzed in thin-film transistors to gain insights into the interplay between the degree of conversion and the resulting p-type semiconducting properties. The semiconducting behavior of PPP was further unambiguously proven through IR and transistor measurements of molybdenum trioxide p-doped films.