Experimental studies on substituted copper phthalocyanine Langmuir-Blodgett films
| Autor: | J. M. Simmons, Shomeek Mukhopadhyay, C. A. Hogarth, Michael J. Cook, Asim K. Ray |
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| Rok vydání: | 1992 |
| Předmět: |
Materials science
Absorption spectroscopy Analytical chemistry chemistry.chemical_element Conductivity Condensed Matter Physics Thermal conduction Copper Langmuir–Blodgett film Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Monolayer Phthalocyanine Molecule Electrical and Electronic Engineering |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 3:139-143 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/bf00695509 |
| Popis: | Using the Langmuir-Blodgett (LB) technique, novel copper bis(3-hydroxypropyloxy-hexaisopentyloxy)phthalocyanine molecules were deposited on quartz substrates. It is argued on the basis of pressure-area isotherms that films are deposited as monolayers. Optical absorption spectroscopy suggests that the deposited films were uniform. A.c. measurements were performed on LB films in a planar configuration at different temperatures. The power-law dependence of the conductivity on frequency is explained in terms of electronic conduction through hopping over a coulombic barrier 0.66 eV high. The Debye relaxation time is estimated to be of the order 811 µs at room temperature. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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