Growth by Vapor‐Solid Method and Luminescence Characterization of Zn‐Chalcogenides Micro‐ and Nanostructures. Issue 19 (21st May 2018)

• Record Type: Journal Article
• Authors: Sotillo, Belén; Urbieta, Ana; Fernández, Paloma
• Other Names: Méndez Bianchi guestEditor.; Cremades Ana guestEditor.; Fernández Paloma guestEditor.
• Is Part Of: Physica status solidi. Volume 215:Issue 19(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-05-21
• Subjects: II–VI compounds -- electron microscopy -- luminescence -- Zn‐chalcogenides; Solid state physics -- Periodicals; Solids -- Industrial applications -- Periodicals; 530.41
• DOI: 10.1002/pssa.201800219
• Languages: English
• ISSNs: 1862-6300

Abstract

Abstract : In this work, ZnSe and ZnTe micro‐ and nanostructures are grown by the vapor‐solid method. Thermal treatments are performed in an inert atmosphere (Ar) to avoid the oxidation of the samples, at 900 °C for 24 h. The structures obtained are investigated by SEM and HRTEM to assess morphology and microstructure. The optical properties are investigated by cathodoluminenscence technique. The bandgaps of these compounds are 2.8 eV for ZnSe and 2.4 eV for ZnTe, however, the luminescence study is extended toward red and near infrared regions to investigate the defect levels. The influence of the size and morphology of the structures on the luminescence properties are studied. Abstract : Vapor‐solid method is used to grow micro‐ and nanostructures of ZnSe and ZnTe. The morphology of the structures is studied using SEM and TEM. Cathodoluminescence measurements are performed to study the optical properties in the visible and near‐infrared range.