In-depth thermal, microstructural and photoluminescence analysis of mesoporous ZnO/ZnAl2o4-MMO: The effect of molar ratio
Document Type
Article
Publication Date
10-1-2021
Abstract
This manuscript reports a detailed preparation and characterization of mesoporous ZnO/ZnAl2O4 mixed metal oxide (MMO) through a two-step solution procedure utilizing Zn/Al layered double hydroxide (LDH) as starting materials. The influence of the molar ratio was comprehensively explored via a number of characterization techniques. Field emission scanning electron microscopy analysis revealed the occurrence of a sheet-like morphology with thickness of 65 nm at molar ratio (r = 6). Simultaneously, a mesoporous nature of the deposited film was observed through the surface area analysis. A considerable value of surface area was obtained (53.3 m(2) g(-1)) through which a high amount of dye was loaded on the deposited film (3.3 x 10(-4)); the latter was evaluated via a regression equation in conjunction with the ultraviolet visible light analysis. This in turn led to a robust correlation between the anticipated surface area, pore size, and the estimated dye loading amount. Moreover, the optical and photoluminescence (PL) features were investigated using UV-vis and PL techniques, wherein the near-band emission (was observed at around 380 nm. The proposed work may provide an alternative eco-friendly approach for future visible light photodetector application.
Keywords
Mesoporous ZnO/ZnAl2O4, Mixed metal oxide (MMO), Photodetector application, Ultraviolet visible light analysis, Layered double hydroxide
Divisions
fac_eng
Funders
Deputyship for Research & Innovation, Ministry of Education in Saudi Arabia [Grant no: 375213500],Central laboratory at Jouf University,King Khalid University
Publication Title
ECS Journal of Solid State Science and Technology
Volume
10
Issue
10
Publisher
Electrochemical Soc Inc
Publisher Location
65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA