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- Title
Optical properties of organic semiconductors based on erbium phthalocyanine complexes in the mid- and near-infrared spectral regions.
- Authors
Belogorokhov, I. A.; Tikhonov, E. V.; Breusova, M. O.; Pushkarev, V. E.; Tomilova, L. G.; Khokhlov, D. R.
- Abstract
The transmittance spectra of erbium phthalocyanine complexes in the mid- and near-infrared wavelength regions are studied. A detailed identification of the transmittance lines is presented for three types of phthalocyanine complexes. Data on the absorption of electromagnetic radiation at the wavelengths around 1.5 μm due to the 4 I 13/2 → 4 I 15/2 intracenter transitions between the levels of the erbium ions incorporated into the samples are obtained. It is found that some of the mid-infrared absorption lines shift when the number of organic ligands is increased by a factor of 2 or 3. It is shown that the absorption coefficient at the wavelengths around 1.5 μm is equal to 27.5, 32.5, and 74 cm−1 for erbium monophthalocyanine, bisphthalocyanine, and triphthalocyanine, respectively.
- Subjects
ORGANIC semiconductors; SEMICONDUCTORS; ORGANIC field-effect transistors; PHTHALOCYANINES; INFRARED spectra; OPTICAL properties
- Publication
Semiconductors, 2007, Vol 41, Issue 10, p1204
- ISSN
1063-7826
- Publication type
Article
- DOI
10.1134/S1063782607100156