Published October 2005
| Version v1
Journal article
Pressure effect on photoluminescence and Raman spectra of PPV
Creators
- 1. Department of Physics, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China)
Description
The pressure effect on photoluminescence (PL) and Raman spectra of the poly (para-phenylene vinylene) (PPV) has been investigated with a diamond anvil cell (DAC) under the hydrostatic pressure condition. The intensity ratios, I 1167/I 1622 and I 1543/I 1622, increase with pressure. This indicates that the conjugated length of PPV is enhanced at high pressures. In addition, appearance of a new Raman band corresponding to CC stretch at 1190 cm-1 shows that the chain conformation defects decreased with increasing pressure. The redshift of the PL spectra and shift to higher frequencies for Raman bands with increase in pressure are explained by combining the conjugation model with amplitude mode model
Additional details
Identifiers
- DOI
- 10.1016/j.jlumin.2005.02.023;
- PII
- S0022-2313(05)00043-8;
Publishing Information
- Journal Title
- Journal of Luminescence
- Journal Volume
- 115
- Journal Issue
- 1-2
- Journal Page Range
- p. 32-38
- ISSN
- 0022-2313
- CODEN
- JLUMA8
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37060087
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- AMPLITUDES; DIAMONDS; PHENYL RADICALS; PHOTOLUMINESCENCE; PRESSURE DEPENDENCE; RAMAN SPECTRA; VINYLIDENE RADICALS
- Descriptors DEC
- ARYL RADICALS; CARBON; ELEMENTS; EMISSION; LUMINESCENCE; MINERALS; NONMETALS; PHOTON EMISSION; RADICALS; SPECTRA
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.