skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Automated method for the determination of the band gap energy of pure and mixed powder samples using diffuse reflectance spectroscopy

Heliyon, 2019-04, Vol.5 (4), p.e01505-e01505, Article e01505 [Peer Reviewed Journal]

2019 ;2019 Published by Elsevier Ltd. 2019 ;ISSN: 2405-8440 ;EISSN: 2405-8440 ;DOI: 10.1016/j.heliyon.2019.e01505 ;PMID: 31025014

Full text available

Citations Cited by
  • Title:
    Automated method for the determination of the band gap energy of pure and mixed powder samples using diffuse reflectance spectroscopy
  • Author: Escobedo-Morales, A. ; Ruiz-López, I.I. ; Ruiz-Peralta, M.deL ; Tepech-Carrillo, L. ; Sánchez-Cantú, M. ; Moreno-Orea, J.E.
  • Subjects: Condensed matter physics ; Materials science
  • Is Part Of: Heliyon, 2019-04, Vol.5 (4), p.e01505-e01505, Article e01505
  • Description: An automated method to determine the band gap energy (Eg) of pure and mixed powder compounds using diffuse reflectance spectroscopy is presented. This method is based on a five-step algorithm that mimics the judgment made by an expert analyst in identifying the linear segments in Tauc plots and subsequent estimation of the Eg value. It is demonstrated that the method to estimate Eg by intersecting the straight-line fit of the Tauc segment with the photon energy axis is not appropriate for those samples containing more than one optical absorbing phase because systematic underestimation of the Eg value results. The automated method accounts for such cases by introducing a base line function. The robustness of the implemented algorithm was tested using three model systems, ZnO-Al2O3, ZnO-CoO and ZnO-CdO. The estimated Eg's using the automated method differ in less than 1% than those obtained by its manual counterpart.
  • Publisher: England: Elsevier Ltd
  • Language: English
  • Identifier: ISSN: 2405-8440
    EISSN: 2405-8440
    DOI: 10.1016/j.heliyon.2019.e01505
    PMID: 31025014
  • Source: PubMed Central
    Directory of Open Access Journals
    ROAD: Directory of Open Access Scholarly Resources
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait