10

NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2013, 4 (5), P. 680–689

NANOSCALE STRUCTURES BASED ON THE Zn_1-xCd_xS

M. A. Jafarov – Baku State University, Baku 1045, Z.Khalilov st.23, Azerbaijan; maarif.jafarov@mail.ru
E. F. Nasirov – Baku State University, Baku 1045, Z.Khalilov st.23, Azerbaijan

In this work, the results of the investigation of the precularity near the solar spectrum region, of Zn_1-xCd_xS nanoparticles, nanofilms, nanoscale p-n and heterojunction prepared on glass-ceramic and alumminium substrates by precipitation from aqueous solutions are presented. We investigated the preparation of ZnCdS nanoparticles in a micro-emulsion system stabilized with nonionic surface active materials, as well as the impact of drop volume and supersaturation the size of the formed ZnCdS particles. The temperature dependence of dark and light conductivity, spectrum and optical quenching of primary and impurity photoconductivity were investigated. Direct current-voltage characteristic structure of Al/p-CdS/n-CdS is almost identical to the current-voltage characteristics of p-n junctions. Volt-farad characteristics of the samples established the presence of conduction due to the presence of reverse bias p-n junctions. In the following order, CdTe/CdS/Zn_1-xCd_xS structure have 75% or slightly higher quantum efficiency in the 400–850 nm wavelength region.

Keywords: chemical bath deposition, nanoparticle, nanoscale p-n junction, micro emulsion system.

PACS 73.20.-e; 78.66.Hf; 68.55.-a

Download