Fabrication and electrical characterization of the anisotype n-ZnO/p-CdTe heterostructures for solar cell applications.

Autor: Khomyak, V. V., Ilashchuk, M. I., Parfenyuk, O. A., Shtepliuk, I. I.
Předmět:
Zdroj: Journal of Applied Physics; Dec2013, Vol. 114 Issue 22, p223715, 6p, 2 Black and White Photographs, 1 Diagram, 1 Chart, 2 Graphs
Abstrakt: n-ZnO/p-CdTe photosensitive anisotype surface-barrier structures were fabricated by means of radio-frequency (rf) magnetron sputtering of the zinc oxide onto freshly cleaved surface of the single-crystal CdTe. It was revealed that dark I-V characteristics at the forward voltages are determined by recombination and tunnel-recombination processes involving surface energy states at the interface. At reverse bias, space-charge limited currents (SCLC) are dominated. It was found that the fabricated structures are referred to smooth p-n-junctions due to the formation of the intermediate Cd1-xZnxTe buffer layer. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index