Title :
Structural evolution of tetraphenylethene with temperature observed using THz-TDS
Author :
Parrott, Edward P. J. ; Tan, Nicholas Y. ; Hu, Rong Rong ; Zeitler, J. Axel ; Ben Zhong Tan ; Pickwell-MacPherson, Emma
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
Structural evolution with temperature of tetraphenylethene (TPE) is followed using THz-TDS. The observed changes in the terahertz spectra are rationalized by performing DFT calculations on experimentally determined low and high temperature crystal structures, thus allowing the changes to be rationalized in terms of the subtle changes in the supramolecular structure.
Keywords :
crystal structure; density functional theory; organic compounds; terahertz wave spectra; time-domain analysis; DFT calculations; high temperature crystal structure; low temperature crystal structure; supramolecular structure; terahertz spectra; terahertz-TDS; tetraphenylethene structural evolution; tetraphenylethene temperature; Discrete Fourier transforms; Educational institutions; Liquid crystals; Spectroscopy; Temperature distribution; Temperature measurement;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665795
