Low temperature effects on electrical and optical properties of TTBNc thin films

Electrical and optical properties of thermally evaporated air annealed Tetra-Tert-Butyl 2,3 Naphthalocyanine (TTBNc) thin films are studied. From the Arrhenius plot, the thermal activation energy is calculated for intrinsic and extrinsic region. Different hopping conduction parameters are tabulated...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2010-02, Vol.356 (3), p.160-164
Main Authors: Dhanya, I., Gopinathan, T.G., Panicker, Nisha S., Menon, C.S.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electrical and electronic properties
Electrical properties of specific thin films
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Exact sciences and technology
Films and coatings
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of specific thin films
Physics
Polymers and organics
Polymers
organic compounds
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Summary:Electrical and optical properties of thermally evaporated air annealed Tetra-Tert-Butyl 2,3 Naphthalocyanine (TTBNc) thin films are studied. From the Arrhenius plot, the thermal activation energy is calculated for intrinsic and extrinsic region. Different hopping conduction parameters are tabulated using the Variable Range Hopping (VRH) model in the low temperature region. The studies on the optical absorption spectra lead to the determination of optical band gap energy and Urbach’s energy of TTBNc thin films. Also the temperature dependence of steepness parameter is explained.
ISSN:0022-3093
1873-4812
DOI:10.1016/j.jnoncrysol.2009.12.007