2013/11/03 by Naresh Shakya, Chandra Prasad Pokhrel, Shakya, Naresh +11
Engineering · Materials Science · #Conducting polymers and applications #FOS: Physical sciences #Liquid Crystal Research Advancements #Materials Science (cond-mat.mtrl-sci) #Organic Electronics and Photovoltaics
paper · pdf · doi:10.48550/arxiv.1311.0525
openalex publication_date 2013/11/03 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We find that the hole mobility of the crystal smectic phases of the liquid crystal 1,4-di-(5-n-tridecylthien-2-yl)-benzene increases exponentially with decreasing temperature. While qualitatively consistent with transport via polaron bands, we find that it is quantitatively difficult to explain the behaviour with physically realistic parameters. In particular, the data demand either quite large typical optical phonon frequencies and/or phonon bandwidths. We also find evidence that an unusually highly ordered smectic-F phase templates the formation of lower temperature highly crystalline smectic phases, which may have implications for device development.