biostudies-literatureBhardwaj BSMEXT | Japan Society for the Promotion of ScienceShorai Foundation for Science and TechnologyMEXT | Japan Society for the Promotion of Science (JSPS)Murata Science FoundationInamori Foundation15149https://www.ebi.ac.uk/biostudies/studies/S-EPMC6805883biostudies-literatureUnknown9(1)Pentacene, an organic molecule, is a promising material for high-performance field effect transistors due to its high charge carrier mobility in comparison to usual semiconductors. However, the charge carrier mobility is strongly dependent on the molecular orientation of pentacene in the active layer of the device, which is hard to investigate using standard techniques in a real device. Raman scattering, on the other hand, is a high-resolution technique that is sensitive to the molecular orientation. In this work, we investigated the orientation distribution of pentacene molecules in actual transistor devices by polarization-dependent Raman spectroscopy and correlated these results with the performance of the device. This study can be utilized to understand the distribution of molecular orScientific reportsOrientation analysis of pentacene molecules in organic field-effect transistor devices using polarization-dependent Raman spectroscopy.PMC680588318K1414819H00870Core-to-Core ProgramUemura TSekitani TSugiyama TBhardwaj BSUmakoshi TNamba NVerma PfalseOrientation analysis of pentacene molecules in organic field-effect transistor devices using polarization-dependent Raman spectroscopy.Pentacene, an organic molecule, is a promising material for high-performance field effect transistors due to its high charge carrier mobility in comparison to usual semiconductors. However, the charge carrier mobility is strongly dependent on the molecular orientation of pentacene in the active layer of the device, which is hard to investigate using standard techniques in a real device. Raman scattering, on the other hand, is a high-resolution technique that is sensitive to the molecular orientation. In this work, we investigated the orientation distribution of pentacene molecules in actual transistor devices by polarization-dependent Raman spectroscopy and correlated these results with the performance of the device. This study can be utilized to understand the distribution of molecular or2019-01-01T00:00:00Z2019 Oct2025-04-22T10:08:09.972Z2019-11-05T08:09:59ZS-EPMC68058833164118810.1038/s41598-019-51647-2