Pristine Poly(para-phenylene): relating semiconducting behavior to kinetics of precursor conversion
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 s...
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| Main Authors: | , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
May 3, 2019
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| In: |
ACS applied materials & interfaces
Year: 2019, Volume: 11, Issue: 21, Pages: 19481-19488 |
| ISSN: | 1944-8252 |
| DOI: | 10.1021/acsami.9b03291 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1021/acsami.9b03291
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| Author Notes: | 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 |
| Summary: | 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. |
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| Item Description: | Gesehen am 10.10.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1944-8252 |
| DOI: | 10.1021/acsami.9b03291 |