Effects of terbium ions on the structural, morphological and optical properties of zinc selenide thin films prepared by photo-assisted chemical bath method

D. D. Hile; H. C. Swart; S. V. Motloung; T. E. Motaung; I. Ahemen; L. F. Koao

doi:10.1016/j.tsf.2023.140001

Effects of terbium ions on the structural, morphological and optical properties of zinc selenide thin films prepared by photo-assisted chemical bath method

D. D. Hile^*, H. C. Swart, S. V. Motloung, T. E. Motaung, I. Ahemen, L. F. Koao

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

This study presents undoped and terbium doped ZnSe thin films deposited at different terbium III (Tb³⁺) ion concentrations using Photo-assisted chemical bath technique. The samples were characterized using glancing incidence X-ray diffraction (GIXRD), Raman spectroscopy, ultraviolet-visible spectroscopy, and photoluminescence (PL) spectroscopy, field emission scanning electron microscope, Atomic force microscopy and energy dispersive X-ray spectroscopy. The GIXRD and Raman peaks intensities, surface roughness and energy band gap increased with increasing Tb³⁺ ions concentration up to 0.8% and decreased thereafter. This behavior, which is equally observed in the PL emission, is ascribed to concentration quenching due to the presence of natural defect in the host material. Three PL emission peaks all associated with the defects were observed at 535, 672 and 743 nm. The thin films morphology transformed from flakes to spherical grains with increased Tb³⁺ ions concentration and the presence of the expected elements was confirmed. The deposited films have potential applications in light emitting devices.

Original language	English
Article number	140001
Journal	Thin Solid Films
Volume	781
DOIs	https://doi.org/10.1016/j.tsf.2023.140001
Publication status	Published - 30 Sept 2023

Keywords

Doped terbium ions
Photo-assisted chemical bath deposition
Thin films
Zinc selenide

Access to Document

10.1016/j.tsf.2023.140001

Cite this

@article{8213400100f34706852ec223bfab768f,

title = "Effects of terbium ions on the structural, morphological and optical properties of zinc selenide thin films prepared by photo-assisted chemical bath method",

abstract = "This study presents undoped and terbium doped ZnSe thin films deposited at different terbium III (Tb3+) ion concentrations using Photo-assisted chemical bath technique. The samples were characterized using glancing incidence X-ray diffraction (GIXRD), Raman spectroscopy, ultraviolet-visible spectroscopy, and photoluminescence (PL) spectroscopy, field emission scanning electron microscope, Atomic force microscopy and energy dispersive X-ray spectroscopy. The GIXRD and Raman peaks intensities, surface roughness and energy band gap increased with increasing Tb3+ ions concentration up to 0.8% and decreased thereafter. This behavior, which is equally observed in the PL emission, is ascribed to concentration quenching due to the presence of natural defect in the host material. Three PL emission peaks all associated with the defects were observed at 535, 672 and 743 nm. The thin films morphology transformed from flakes to spherical grains with increased Tb3+ ions concentration and the presence of the expected elements was confirmed. The deposited films have potential applications in light emitting devices.",

keywords = "Doped terbium ions, Photo-assisted chemical bath deposition, Thin films, Zinc selenide",

author = "Hile, {D. D.} and Swart, {H. C.} and Motloung, {S. V.} and Motaung, {T. E.} and I. Ahemen and Koao, {L. F.}",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = sep,

day = "30",

doi = "10.1016/j.tsf.2023.140001",

language = "English",

volume = "781",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Effects of terbium ions on the structural, morphological and optical properties of zinc selenide thin films prepared by photo-assisted chemical bath method

AU - Hile, D. D.

AU - Swart, H. C.

AU - Motloung, S. V.

AU - Motaung, T. E.

AU - Ahemen, I.

AU - Koao, L. F.

PY - 2023/9/30

Y1 - 2023/9/30

N2 - This study presents undoped and terbium doped ZnSe thin films deposited at different terbium III (Tb3+) ion concentrations using Photo-assisted chemical bath technique. The samples were characterized using glancing incidence X-ray diffraction (GIXRD), Raman spectroscopy, ultraviolet-visible spectroscopy, and photoluminescence (PL) spectroscopy, field emission scanning electron microscope, Atomic force microscopy and energy dispersive X-ray spectroscopy. The GIXRD and Raman peaks intensities, surface roughness and energy band gap increased with increasing Tb3+ ions concentration up to 0.8% and decreased thereafter. This behavior, which is equally observed in the PL emission, is ascribed to concentration quenching due to the presence of natural defect in the host material. Three PL emission peaks all associated with the defects were observed at 535, 672 and 743 nm. The thin films morphology transformed from flakes to spherical grains with increased Tb3+ ions concentration and the presence of the expected elements was confirmed. The deposited films have potential applications in light emitting devices.

AB - This study presents undoped and terbium doped ZnSe thin films deposited at different terbium III (Tb3+) ion concentrations using Photo-assisted chemical bath technique. The samples were characterized using glancing incidence X-ray diffraction (GIXRD), Raman spectroscopy, ultraviolet-visible spectroscopy, and photoluminescence (PL) spectroscopy, field emission scanning electron microscope, Atomic force microscopy and energy dispersive X-ray spectroscopy. The GIXRD and Raman peaks intensities, surface roughness and energy band gap increased with increasing Tb3+ ions concentration up to 0.8% and decreased thereafter. This behavior, which is equally observed in the PL emission, is ascribed to concentration quenching due to the presence of natural defect in the host material. Three PL emission peaks all associated with the defects were observed at 535, 672 and 743 nm. The thin films morphology transformed from flakes to spherical grains with increased Tb3+ ions concentration and the presence of the expected elements was confirmed. The deposited films have potential applications in light emitting devices.

KW - Doped terbium ions

KW - Photo-assisted chemical bath deposition

KW - Thin films

KW - Zinc selenide

UR - http://www.scopus.com/inward/record.url?scp=85167405487&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2023.140001

DO - 10.1016/j.tsf.2023.140001

M3 - Article

AN - SCOPUS:85167405487

SN - 0040-6090

VL - 781

JO - Thin Solid Films

JF - Thin Solid Films

M1 - 140001

ER -

Effects of terbium ions on the structural, morphological and optical properties of zinc selenide thin films prepared by photo-assisted chemical bath method

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this