Thermoreflectance study of polydiacetylene-bis (toluene sulphonate) single crystal (PDA-TS)
- 20 April 1983
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 16 (11) , 2165-2176
- https://doi.org/10.1088/0022-3719/16/11/019
Abstract
For the first time studies have been made of the polarised thermoreflectance of an oriented PDA-TS single crystal. The spectra in the photon energy range 1.9-2.5 eV are taken at room and liquid nitrogen temperature. From the different sensitivities to temperature the structures at 2.00 eV and 2.44 eV are assigned to excitonic and interband transitions, respectively. The binding energies of the excitons at room temperature (0.44 eV) and those corresponding to the low-temperature split band gap have been estimated to be nearly identical: 0.43 eV and 0.44 eV. The main thermoreflectance structures are assigned to a Frenkel exciton interacting with phonons.Keywords
This publication has 25 references indexed in Scilit:
- An investigation of the electronic excited state of a polydiacetylene by resonance Raman spectroscopyJournal of Physics C: Solid State Physics, 1982
- Dark-current measurements in a conjugated-polymer single crystalJournal of Physics C: Solid State Physics, 1979
- Electronic Structure of Ti2O3 from Single Crystal Thermoreflectance SpectroscopyPhysica Status Solidi (b), 1979
- Exciton reflection spectra of tetracene single crystalsPhysica Status Solidi (b), 1979
- The crystal structure of the low-temperature phase of poly[1,2-bis(p-tolylsulphonyloxymethylene)-1-buten-3-ynylene]Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 1977
- Optical properties of bis (p-Toluene Sulphonate) diacetylene ii. low-temperature spectraPhysica Status Solidi (a), 1977
- Optical Properties of a Polydiacetylene Single Crystal Evidence for van Hove SingularitiesPhysica Status Solidi (b), 1976
- Electronic excitations of a conjugated polymer crystalJournal of Physics C: Solid State Physics, 1975
- Topochemische Reaktionen von Monomeren mit konjugierten Dreifachbindungen, 10. Elektrische Leitfähigkeit von Einkristallen aus PolydiacetylenenDie Makromolekulare Chemie, 1974
- Absorption and Dispersion of Light by Molecular ExcitonsPhysica Status Solidi (b), 1967