A comparative study of photoluminescence spectra of chromophores and semiconducting polymer films

Authors
Shin, J Choi, H Ro, J Kim, H Lee, K Cha, M Noh, J Lee, S Suh, H
Citation
J. Shin et al., A comparative study of photoluminescence spectra of chromophores and semiconducting polymer films, J KOR PHYS, 37(1), 2000, pp. 55-58
Citations number
13
Categorie Soggetti
Physics
Journal title
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
ISSN journal
03744884 → ACNP
Volume
37
Issue
1
Year of publication
2000
Pages
55 - 58
Database
ISI
SICI code
0374-4884(200007)37:1<55:ACSOPS>2.0.ZU;2-5
Abstract
Photoluminescence (PL) spectra of chromophore-attached polymer and semicond ucting polymer thin films are comparatively studied. In the chromophore thi n film, we clearly observe that a vibronic subband of the luminescence has been bleached after waveguiding under optical pumping, in strong contrast t o the case of the semiconducting polymer film. This provides direct evidenc e that the PL mechanisms in short chromophores and semiconducting polymers are different.