Probing inter-molecular interactions of dinaphthothienothiophene (DNTT) molecules in a transistor device using low-frequency Raman spectroscopy.

Autor: Bishwajeet Singh Bhardwaj, Rhea Thankam Sam, Takayuki Umakoshi, Naoko Namba, Takafumi Uemura, Tsuyoshi Sekitani, Prabhat Verma
Zdroj: Applied Physics Express; 2/1/2020, Vol. 13 Issue 2, p1-1, 1p
Abstrakt: The packing of Dinaphthothienothiophene (DNTT) molecules, such as their proximities and alignments, can significantly affect the carrier mobility within a device. Since the low-frequency vibrational modes in Raman scattering originate from the intermolecular interactions, they provide direct information about the molecular packing, particularly about their proximities from each other. Therefore, low-frequency Raman scattering turns out to be an indispensable tool to investigate DNTT-based devices for their potential improvements. Here, we report low-frequency Raman investigation on the DNTT molecules in a real transistor device to investigate the intermolecular interactions at a spatial resolution of a few hundreds of nanometers. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index