Band Gap Engineering and Electronic Structure Study of ZrSxSx-2: Novel Materials for Solar Cell Applications
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Berlin
Mensch & Buch
2012
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XI, 129 S. |
| ISBN: | 9783863871383 |
Internformat
MARC
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| 100 | 1 | |a Moustafa, Mohamed Orabi |d 1973- |e Verfasser |0 (DE-588)1023137410 |4 aut | |
| 245 | 1 | 0 | |a Band Gap Engineering and Electronic Structure Study of ZrSxSx-2 |b Novel Materials for Solar Cell Applications |c Mohamed Orabi Moustafa |
| 264 | 1 | |a Berlin |b Mensch & Buch |c 2012 | |
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Datensatz im Suchindex
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| adam_text | IMAGE 1
TABLE OF CONTENTS
ZUSAMMENFASSUNG I
ABSTRACT III
ACKNOWLEDGEMENTS V
LIST O F ABBREVIATIONS VII
TABLE O F CONTENTS IX
1 INTRODUCTION 1
2 THE LAYERED TRANSITION METAL DICHALCOGENIDES 5
2.1 INTRODUCTION 5
2.2 CRYSTAL STRUCTURE 5
2.3 ELECTRONIC PROPERTIES 10
2.4 OPTICAL AND ELECTRICAL PROPERTIES 12
3 THE ZRS XSE2_J., SAMPLE GROWTH AND CHARACTERIZATION 15
3.1 CRYSTAL GROWTH 15
3.2 SAMPLE CHARACTERIZATION 19
3.2.1 ENERGY DISPERSIVE X-RAY SPECTROSCOPY 19
3.2.2 LOW ENERGY ELECTRON DIFFRACTION 2 1
3.2.3 LAUE DIFFRACTION 25
3.3 NON-STOICHIOMETRY PHASE IN ZRS XSE2_A: 26
3.4 WORK FUNCTION AND PHOTOTHRESHOLD 28
3.4.1 KELVIN PROBE 29
I X
HTTP://D-NB.INFO/1022291750
IMAGE 2
CONTENTS
4 BAND GAP ENGINEERING OF ZRS A.SE2_X 33
4.1 OPTICAL ABSORPTION AND BAND GAP 34
4.1.1 INTERBAND ABSORPTION 34
4.1.2 REFLECTANCE, TRANSMITTANCE, AND ABSORBANCE 35
4.1.3 BAND GAP DETERMINATION FROM THE OPTICAL MEASUREMENTS 36
4.2 COMPOSITION DEPENDENCE O F THE BAND GAP O F ZRS^SE 2_X 38
4.2.1 EXPERIMENTAL SET-UP 38
4.2.2 ABSORPTION MEASUREMENTS 40
4.2.3 BAND GAP DETERMINATION 40
4.2.4 DISCUSSION 42
4.3 TEMPERATURE DEPENDENCE O F THE BAND GAP OF ZRS XSE2_X 4 4
4.3.1 LITERATURE OVERVIEW 44
4.3.2 TEMPERATURE SHIFT O F THE BAND GAP O F ZRS XSE2_J: 47
4.4 URBACHTAIL 50
4.4.1 DEFINITION AND THEORY 50
4.4.2 URBACH TAIL O F ZRS XSE2_X 52
4.4.3 DISCUSSION 54
5 ANGLE RESOLVED PHOTOEMISSION SPECTROSCOPY (ARPES) - PRINCIPLES AND
APPARATUS 57
5.1 GENERAL ASPECTS O F PHOTOEMISSION SPECTROSCOPY 58
5.1.1 THE PHOTOEMISSION PROCESS 58
5.1.2 THREE-STEP MODEL 60
5.1.3 SHIRLEY BACKGROUND 64
5.2 EXPERIMENTAL DETAILS O F THE ARPES MEASUREMENTS 65
5.2.1 EXPERIMENTAL LABORATORY 65
5.2.1.1 SYNCHROTRON RADIATION 65
5.2.1.2 THE 5 M - N I M BEAMLINE 68
5.2.1.3 THE ARPES END-STATION APPARATUS 70
5.2.2 SAMPLE PREPARATION AND DATA PROCESSING 73
6 ELECTRONIC STRUCTURE O F ZRS XSE2_X 8 1
6.1 INTRODUCTION 8 1
6.2 THE DEGREE O F TWO-DIMENSIONALITY 84
6.2.1 MEASUREMENTS ALONG TA DIRECTION 85
6.2.2 VALENCE BAND STRUCTURE ALONG TA DIRECTION 87
6.3 VALENCE BAND STRUCTURE ALONG AL AND AH DIRECTIONS 9 1
X
IMAGE 3
CONTENTS
6.4 COMPARISON WITH BAND STRUCTURE CALCULATIONS 96
6.5 INTERPRETATION O F THE RESULTS 98
6.5.1 SPIN ORBIT INTERACTION AROUND THE SYMMETRIC POINT A 98
6.5.2 SHIFT O F THE TOPMOST VALENCE BAND 100
6.5.3 BAND GAP DETERMINATION BY ARPES 103
6.6 SURFACE PARAMETERS 107
7 CONCLUSIONS 111
BIBLIOGRAPHY 115
PUBLICATIONS AND CONFERENCES 125
CURRICULUM VITAE 127
XI
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| author | Moustafa, Mohamed Orabi 1973- |
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| bvnumber | BV040242077 |
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| dewey-full | 537.6223 |
| dewey-hundreds | 500 - Natural sciences and mathematics |
| dewey-ones | 537 - Electricity and electronics |
| dewey-raw | 537.6223 |
| dewey-search | 537.6223 |
| dewey-sort | 3537.6223 |
| dewey-tens | 530 - Physics |
| discipline | Physik Elektrotechnik / Elektronik / Nachrichtentechnik Energietechnik |
| format | Thesis Book |
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| isbn | 9783863871383 |
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| physical | XI, 129 S. |
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| spelling | Moustafa, Mohamed Orabi 1973- Verfasser (DE-588)1023137410 aut Band Gap Engineering and Electronic Structure Study of ZrSxSx-2 Novel Materials for Solar Cell Applications Mohamed Orabi Moustafa Berlin Mensch & Buch 2012 XI, 129 S. txt rdacontent n rdamedia nc rdacarrier Zugl.: Humboldt-Universität zu Berlin, Diss., 2011 Elektronenstruktur (DE-588)4129531-6 gnd rswk-swf Selenide (DE-588)4180879-4 gnd rswk-swf Zirkoniumverbindungen (DE-588)4190957-4 gnd rswk-swf Energielücke (DE-588)4323386-7 gnd rswk-swf Verbindungshalbleiter (DE-588)4062623-4 gnd rswk-swf Sulfide (DE-588)4184024-0 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Verbindungshalbleiter (DE-588)4062623-4 s Zirkoniumverbindungen (DE-588)4190957-4 s Sulfide (DE-588)4184024-0 s Selenide (DE-588)4180879-4 s Elektronenstruktur (DE-588)4129531-6 s Energielücke (DE-588)4323386-7 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025098260&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Moustafa, Mohamed Orabi 1973- Band Gap Engineering and Electronic Structure Study of ZrSxSx-2 Novel Materials for Solar Cell Applications Elektronenstruktur (DE-588)4129531-6 gnd Selenide (DE-588)4180879-4 gnd Zirkoniumverbindungen (DE-588)4190957-4 gnd Energielücke (DE-588)4323386-7 gnd Verbindungshalbleiter (DE-588)4062623-4 gnd Sulfide (DE-588)4184024-0 gnd |
| subject_GND | (DE-588)4129531-6 (DE-588)4180879-4 (DE-588)4190957-4 (DE-588)4323386-7 (DE-588)4062623-4 (DE-588)4184024-0 (DE-588)4113937-9 |
| title | Band Gap Engineering and Electronic Structure Study of ZrSxSx-2 Novel Materials for Solar Cell Applications |
| title_auth | Band Gap Engineering and Electronic Structure Study of ZrSxSx-2 Novel Materials for Solar Cell Applications |
| title_exact_search | Band Gap Engineering and Electronic Structure Study of ZrSxSx-2 Novel Materials for Solar Cell Applications |
| title_full | Band Gap Engineering and Electronic Structure Study of ZrSxSx-2 Novel Materials for Solar Cell Applications Mohamed Orabi Moustafa |
| title_fullStr | Band Gap Engineering and Electronic Structure Study of ZrSxSx-2 Novel Materials for Solar Cell Applications Mohamed Orabi Moustafa |
| title_full_unstemmed | Band Gap Engineering and Electronic Structure Study of ZrSxSx-2 Novel Materials for Solar Cell Applications Mohamed Orabi Moustafa |
| title_short | Band Gap Engineering and Electronic Structure Study of ZrSxSx-2 |
| title_sort | band gap engineering and electronic structure study of zrsxsx 2 novel materials for solar cell applications |
| title_sub | Novel Materials for Solar Cell Applications |
| topic | Elektronenstruktur (DE-588)4129531-6 gnd Selenide (DE-588)4180879-4 gnd Zirkoniumverbindungen (DE-588)4190957-4 gnd Energielücke (DE-588)4323386-7 gnd Verbindungshalbleiter (DE-588)4062623-4 gnd Sulfide (DE-588)4184024-0 gnd |
| topic_facet | Elektronenstruktur Selenide Zirkoniumverbindungen Energielücke Verbindungshalbleiter Sulfide Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025098260&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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