eprintid: 2998
rev_number: 9
eprint_status: archive
userid: 303
dir: disk0/00/00/29/98
datestamp: 2018-06-18 07:54:20
lastmod: 2018-06-18 07:54:20
status_changed: 2018-06-18 07:54:20
type: article
metadata_visibility: show
creators_name: Nguyen, Quang Hoa
creators_name: Nguyen, Van Dung
creators_name: Fujiwara, Akihiko
creators_name: Bui, Nguyen Quoc Trinh
creators_id: trinhbnq@vnu.edu.vn
title: Solution-processed CuO thin films with various Cu2+ ion concentrations
ispublished: inpress
subjects: Phys
subjects: Scopus
subjects: isi
divisions: fac_physic
abstract: Presented herein is a report on cupric oxide (CuO) thin films prepared on glass substrates by using a solution process with varying nominal concentrations of Cu2+ ions at 0.15 M, 0.20 M, and 0.25 M. X-ray diffraction patterns and scanning electron microscopy (SEM) micrographs were analyzed to evaluate the crystalline structure and surface morphology of the CuO thin films. The fabricated CuO thin films exhibited a single-phased monoclinic structure with (200) and (111) orientations. The grain size of the CuO thin films was observed to increase with higher concentration, by SEM observation. The electrical and optical properties of the CuO thin films were investigated using a four-probe measurement system and UV/VIS spectrometer, respectively. The thin films showed a minimum resistivity of 0.085 Ωcm corresponding to the 0.25 M concentration, and a bandgap energy ranging from 2.10 eV to 2.15 eV. In addition, the light-harvesting ability of CuO thin films was considered by the absorption figure of merit (a-FOM), in correlation with the global solar spectrum. A maximum a-FOM value of 12.79 Ω-1cm-1 was attained for the sample with a Cu2+ ion concentration of 0.25 M.
date: 2018
date_type: published
publisher: Switzerland
official_url: https://www.sciencedirect.com/science/article/pii/S0040609018301809?via%3Dihub
full_text_status: public
publication: Thin Solid Film
refereed: TRUE
issn: 0040-6090
citation:   Nguyen, Quang Hoa and Nguyen, Van Dung and Fujiwara, Akihiko and Bui, Nguyen Quoc Trinh  (2018) Solution-processed CuO thin films with various Cu2+ ion concentrations.  Thin Solid Film .    ISSN 0040-6090    (In Press)  
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2998/1/TSF-BNQ%20Trinh%202018.pdf