Structural and optical properties of electrodeposited Cu2O thin films. (2020)

• Record Type: Journal Article
• Authors: Hssi, A. Ait; Atourki, L.; Labchir, N.; Abouabassi, K.; Ouafi, M.; Mouhib, H.; Ihlal, A.; Elfanaoui, A.; Benmokhtar, S.; Bouabid, K.
• Is Part Of: Materials today. Volume 22:Part 1(2020)
• Page Start: 89
• Page End: 92
• Publication Date: 2020
• Subjects: Cu2O thin film -- Solar cell -- Electrodeposition -- Structural property -- DFT; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2019.08.100
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: In this work, we report on the synthesis of Cu2 O thin films by electrodeposition technique. The as-electrodeposited films at −0.5 V potential for 15 min in basic solution (pH = 9) are well crystallized in cubic structure, with 〈1 1 1〉 as preferential orientation and with lattice parameter a = 4.26 Å. The transmittance of Cu2 O films reveals that they have high optical transmission (>70%) with direct band gap energy in order of 2.23 eV. The density functional theory using the plane-wave-self-consistent field (PWSCF) was carried out for Cu2 O to determine some of their electronic properties. Theoretical analyses show that Cu2 O has a direct band gap with value 2.01 eV, which is consistent with the experimental results.