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BSI PD IEC TS 62607-5-4:2022

BSI PD IEC TS 62607-5-4:2022

$102.76

Nanomanufacturing. Key control characteristics – Energy band gap measurement of nanomaterials by electron energy loss spectroscopy (EELS)

Published By Publication Date Number of Pages
BSI 2022 22
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PDF Catalog

PDF Pages PDF Title
2 undefined
4 CONTENTS
5 FOREWORD
7 INTRODUCTION
8 1 Scope
2 Normative references
3 Terms and definitions
9 Figures
Figure 1 – Definition of band gap energy
11 4 Abbreviated terms
5 Environmental conditions
6 Test sample
6.1 General
6.2 Size of test sample
7 Testing method and test apparatus
7.1 General
12 7.2 Detector
Figure 2 – Schematic showing TEM and EELS system
13 7.3 Test procedure
7.3.1 Transmission electron microscope alignment
7.3.2 Scanning transmission electron microscope alignment
7.4 Measurement
Figure 3 – Apparatus for the measurement of band gap energy by using electron energy loss spectroscopy
14 8 Data analysis
8.1 Band gap determination
Figure 4 – Setting for spectrum imaging
15 8.2 Report of the results
Figure 5 – Normalized spectrum of log scale
Figure 6 – Band gap measurement method using linear fitting
17 Annex A (informative)Band gap measurement of WO3 thin film on PET
Figure A.1 – Measurement of band gap of WO3 by STEM-EELS
18 Table A.1 – Example of a report for the sample in Figure A.1
19 Annex B (informative)Band gap measurement of SiNx thin-film multilayers
Figure B.1 – Band gap measurement result of multilayer thin films
Table B.1 – Band gap data of SiNx
20 Bibliography

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BSI PD IEC TS 62607-5-4:2022
$102.76