Open AccessGrowth of Cu2O Nanopyramids by Ion Beam Sputter Deposition
Author(s) -
Assamen Ayalew Ejigu
Publication year - 2019
Publication title -
advances in condensed matter physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.314
H-Index - 26
eISSN - 1687-8124
pISSN - 1687-8108
DOI - 10.1155/2019/4276184
Subject(s) - materials science , photocurrent , raman spectroscopy , photoluminescence , analytical chemistry (journal) , crystallite , luminescence , substrate (aquarium) , sputtering , sputter deposition , thin film , optoelectronics , optics , nanotechnology , chemistry , physics , oceanography , chromatography , metallurgy , geology
In this study, we have successfully deposited n-type Cu 2 O triangular nanopyramids on Si by employing ion beam sputter deposition with an Ar : O 2 ratio of 9 : 1 at a substrate temperature of 450°C. Scanning electron microscopy measurements showed attractively triangular nanopyramids of ∼500 nm edge and height lengths. Both X-ray diffraction and Raman spectroscopy characterizations showed the structures were single-phase polycrystalline Cu 2 O, and the room-temperature photoluminescence investigation showed interestingly green and blue exciton luminescence emissions. All Mott—Schottky, linear sweep voltammetry, and photocurrent measurements indicated that the conductivity of the Cu 2 O pyramids is of n-type.