Citation
M. Tzolov et al., Subgap absorption in tris (8-hydroxyquinoline) aluminium, SYNTH METAL, 119(1-3), 2001, pp. 559-560
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779
→ ACNP
Volume
119
Issue
1-3
Year of publication
2001
Pages
559 - 560
Database
ISI
SICI code
0379-6779(20010315)119:1-3<559:SAIT(A>2.0.ZU;2-G
Abstract
Photothermal deflection spectroscopy was performed on films of tris (8-hydr
oxyquinoline) aluminium. The presence of an exponential part of the absorpt
ion spectrum was found followed by a broad defect absorption. The former is
ascribed to HOMO and LUMO tail states and their relevance to the photolumi
nescence is discussed. The intensity of the defect absorption depends on th
e used source material. The optically detected defect states are correlated
with trap states seen in transport measurements.