DETERMINATION OF THE STRUCTURAL STATE AND STABILITY OF THE LASER CRYSTALLIZED Cd1-xМnxTe CRYSTAL SURFACE

• Main Authors: Victor Strebezhev, Ivan Yuriychuk, Petro Fochuk, Sergiy Nichyi, Yuriy Dobrovolsky, Victoria Tkachuk, Mykola Sorokatyi, Yurii Sorokatyi
• Format: Article
• Language: English
• Published: Lublin University of Technology 2020-03-01
• Series: Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
• Subjects: Cd1-xMnxTe crystal; surface; laser; thin film
• Online Access: https://ph.pollub.pl/index.php/iapgos/article/view/918

The modified surface layers of the Cd1-xMnxTe crystals were obtained by the laser recrystallization of the crystal surface with the use of millisecond and nanosecond ruby ​​lasers. The determination and diagnostics of the layer structural state were performed by the study the electron channeling patterns in the SEM. The AFM studies showed that mechanically stable contact regions in the CdTe crystal – Cu film system can be formed, depending on the laser energy density and beam defocusing. On the base of the ellipsometric studies, it was found that while irradiating the Cd1-xMnxTe crystal surface, the refractive index of the oxide film on the modified surface changes depending on the laser beam energy density, which can be interpreted as the formation of the oxides of the different chemical composition.