Communications - Scientific Letters of the University of Zilina 2006, 8(1):22-24 | DOI: 10.26552/com.C.2006.1.22-24
Thin Film Optical Parameters Determination by the Dynamical Modelling and Stochastic Optimization Method
- 1 Department of Engineering Fundamentals, Faculty of Electrical Engineering, Liptovsky Mikulas, Slovakia
We report on a new method of experimental data processing to obtain optical parameters of thin films. Dynamical modelling of the spectral reflectance can be performed interactively in a graphical environment by the genetic search in wide interval of parameter space and then refined by the genetic algorithm method, by the Nelder-Mead downhill simplex method or Marquardt-Levenberg method. Optical parameters of hydrogenated amorphous silicon (a-Si:H) thin film used in solar cell technology are determined by this new method. The spectral reflectance is a function of optical properties and the thickness of the film. Optical parameters found by our approach do not depend on the initial spectral reflectance estimation.
Keywords: no keywords
Published: March 31, 2006 Show citation
ACS | AIP | APA | ASA | Harvard | Chicago | Chicago Notes | IEEE | ISO690 | MLA | NLM | Turabian | Vancouver |
References
- SWANEPOEL, R.: J. Phys. E, 34, 1214, 1983.
Go to original source...
- GOLDBERG, D. E.: Genetic Algorithms in Search, Optimization and Machine Learning. Addisom-Wesley, 1989.
- FRANTA, D., OHLÍDAL, I., MUNZAR, D.: Acta Physica Slovaca, 48, No. 4, 451, 1998
- JELLISON, G. E.: Thin Solid Films, 313 - 314, 33, 1998
Go to original source...
- NÁDAŽDY, V, DURNÝ, R., THURZO, I., PINČÍK, E., NISHIDA, A., SHIMIZU, J., KUMEDA, M., SHIMIZU, T.: Phys. Rev. B 66, 195211, 2002.
Go to original source...
- MÜLLEROVÁ, J., JUREČKA, S., ŠUTTA, P.: Acta Physica Slovaca, 55, No. 3, 351, 2005.
This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.