Infrared Spectral Analysis of Plasmonic Polarons in Doped P3HT Films. Issue 10 (16th August 2021)

• Record Type: Journal Article
• Authors: Rohnacher, Valentina; Tzschoppe, Michael; Sivanesan, Vipilan; Pucci, Annemarie
• Is Part Of: Physica status solidi. Volume 258:Issue 10(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-08-16
• Subjects: doped polymers -- hole mobilities -- IR polarons -- plasmonic models -- spectral analysis; Solid state physics -- Periodicals; Solids -- Periodicals; Atomic structure -- Periodicals; 530.41
• DOI: 10.1002/pssb.202100237
• Languages: English
• ISSNs: 0370-1972

Abstract

Abstract : The strong midinfrared polaronic signal in p‐doped polymers such as P3HT is analyzed in terms of a plasmonic absorption cross section. Quantitative conclusion on the hole mobility along chains of coherently connected thiophene units is derived in that way. This intrachain mobility is more than two orders of magnitude higher than average mobilities of doped polymers which is limited by the much less efficient interchain transport processes. Abstract : The strong midinfrared polaronic signal in p‐doped P3HT is analyzed in terms of a plasmonic absorption cross section. Numerical values of the hole mobility along chains of thiophene units are thus derived. This intrachain mobility is more than two orders of magnitude higher than the average polymer mobilities limited by inefficient interchain transport processes.