1. Institute of Physics, College of Natural Science, University of Rzeszow, 1 Pigonia Street, 35-317 Rzeszow, Poland
2. Department of Semiconductor and Optoelectronics Devices, Lodz University of Technology, Wólczańska 211/215, 90-924 Lodz, Poland
3. Department of Heat Engineering and Air Conditioning, Faculty of Civil and Environmental Engineering and Architecture, Rzeszow University of Technology, 12 Powstańców Warszawy Street, 35-959 Rzeszow, Poland
4. Vasyl Stefanyk Precarpathian National University, T. Shevchenko, 57, 76-018 Iwano Frankiwsk, Ukraine