Carrier-selective contacts for high-efficiency Si solar cells:
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English |
| Published: |
[Stuttgart]
Fraunhofer Verlag
2015
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| Series: | Solar energy and systems research
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| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Physical Description: | viii, 177 Seiten Illustrationen, Diagramme |
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| 245 | 1 | 0 | |a Carrier-selective contacts for high-efficiency Si solar cells |c vorgelegt von Frank Feldmann |
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Record in the Search Index
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| adam_text | TABLE OF CONTENTS
TABLE OF CONTENTS I
ABSTRACT V
ZUSAMMENFASSUNG VII
1 INTRODUCTION 1
1.1 MOTIVATION 1
1.2 THESIS OUTLINE 3
2 FUNDAMENTALS S
2.1 BASIC SEMICONDUCTOR EQUATIONS AND TUNNELING S
2.1.1 BASIC SEMICONDUCTOR EQUATIONS 5
2.1.2 QUANTUM MECHANICAL TUNNELING 6
2.2 BASIC SOLAR CELL OPERATION 10
2.3 HOMOJUNCTION SOLAR CELLS ; 12
2.3.1 BAND BENDING OF PN JUNCTION 13
2.3.2 J- V CHARACTERISTICS OF PN JUNCTION 14
2.3.3 INHERENT EFFICIENCY LIMITATIONS OF PN HOMOJUNCTION SOLAR CELLS 1S
2.3.4 DISCUSSION 16
2.4 STRATEGIES TO MINIMIZE MINORITY CARRIER RECOMBINATION 17
2.4.1 THE A-SI:H/C-SI HETEROJUNCTION 18
2.4.2 CONDUCTOR-INSULATOR-SEMICONDUCTOR CONTACTS 22
2.4.3 POLYSILICON AND S1POS EMITTERS 24
2.5 THE EFFECT OF A TUNNEL OXIDE ON CARRIER-SELECTIVITY 28
2.5.1 THE IMPLEMENTED TUNNELING MODEL 28
2.5.2 DESIGN OF EXPERIMENT AND SIMULATION 29
2.5.3 INFLUENCE OF OXIDE THICKNESS AND EFFECTIVE MASS ON FF 30
2.5.4 STUDY OF DIFFERENT CONTACT CONFIGURATIONS 31
2.5.5 DISCUSSION 34
3 METROLOGY 35
3.1 CARRIER LIFETIME MEASUREMENTS 35
3.2 SUNSV*C 37
3.3 ADVANCED CHARACTERIZATION TECHNIQUES FOR CARRIER-SELECTIVE CONTACTS
38
3.3.1 COMBINED ANALYSIS OF QSSPC AND SUNSV,* MEASUREMENT 38
3.3.2 HIGH ILLUMINATION INTENSITY SUNSV,,,. MEASUREMENTS 40
HTTP://D-NB.INFO/1082449156
3.4 SURFACE PHOTOVOLTAGE TECHNIQUE 42
3.4.1 DETERMINATION OF DARK BAND BENDING 43
3.5 RAMAN SPECTROSCOPY 45
3.5.1 DETERMINATION OF C-SI FRACTION 46
3.6 FOURIER TRANSFORM INFRARED SPECTROSCOPY - FTIR 48
4 TECHNOLOGY 51
4.1 GROWTH OF TUNNEL OXIDE 51
4.2 DEPOSITION OF AMORPHOUS SILICON CARBIDE BY PECVD 52
4.2.1 REACTOR DESIGN 53
4.2.2 PROCESS FOR THE DEPOSITION OF A-SII.
X
C*:H 54
4.3 REMOTE PLASMA HYDROGEN PASSIVATION 55
4.4 SPUTTER DEPOSITION OF TCO 56
4.5 TECHNOLOGICAL CHALLENGES 56
5 SOLID PHASE CRYSTALLIZATION OF AMORPHOUS SI AND SII.JC, FILMS 59
5.1 OVERVIEW OF SOLID PHASE CRYSTALLIZATION OF SIC 59
5.2 SAMPLE PREPARATION AND MEASUREMENT CONDITIONS 60
5.3 CRYSTALLINE SI PHASES - RAMAN SPECTROSCOPY 63
5.3.1 INFLUENCE OF CARBON FRACTION ON SI CRYSTALLINITY 63
5.3.2 INFLUENCE OF DOPING ON CRYSTALLIZATION 67
5.3.3 DISCUSSION 69
5.4 SIC-BONDING CONFIGURATION - FTIR 70
5.5 OPTICAL PROPERTIES OF SIC - UV/VIS 73
5.6 CHAPTER SUMMARY 76
6 ELECTRICAL PROPERTIES OF SIC/SIO,/C-SI JUNCTIONS 77
6.1 THE TUNNEL OXIDE PASSIVATED CONTACT APPROACH 77
6.2 SAMPLE PREPARATION AND ANALYSIS 79
6.3 SURFACE PASSIVATION OF N-TOPCON 81
6.3.1 SURFACE PASSIVATION AS A FUNCTION OF THE ANNEALING TEMPERATURE 82
6.3.2 VARIATION OF CARBON FRACTION OF SIC LAYER 86
6.3.3 EX-SITU P-DOPING BY ION IMPLANTATION 90
6.3.4 STUDY OF DIFFERENT TUNNEL OXIDE LAYERS 93
6.4 SURFACE PASSIVATION OF P-TOPCON 98
6.4.1 PASSIVATION OF SINGLE LAYER SIO^/SIC STRUCTURE 99
6.4.2 BENEFICIAL EFFECT OF AN INTRINSIC BUFFER LAYER 101
6.4.3 EX-SITU B-DOPING VIA ION IMPLANTATION 104
6.4.4 STUDY OF DIFFERENT TUNNEL OXIDE LAYERS 109
TABLE OF CONTENTS III
6.5 DARK BAND BENDING AND EXTERNAL VOLTAGE 110
6.5.1 DARK BAND BENDING OF N-CONTACT AND P-CONTACT 112
6.5.2 EXTRACTION OF EXTERNAL VOLTAGE 114
6.6 EVOLUTION OF CONTACT RESISTANCE UPON FURNACE ANNEALING 115
6.7 CHAPTER SUMMARY 116
7 SOLAR CELLS WITH CARRIER-SELECTIVE CONTACTS 119
7.1 DOUBLE HETEROSTRUCTURE SOLAR CELL 119
7.1.1 SOLAR CELL FABRICATION AND CHARACTERIZATION 120
7.1.2 PASSIVATION AND SPUTTER DAMAGE 121
7.1.3 CARRIER TRANSPORT 124
7.1.4 SOLAR CELL BLUE RESPONSE 127
7.1.5 DISCUSSION 128
7.2 SOLAR CELLS WITH PASSIVATED REAR CONTACT 130
7.2.1 SOLAR CELL STRUCTURE AND FABRICATION 131
7.2.2 PREREQUISITES FOR HIGH-EFFICIENCY 132
7.2.3 SOLAR CELLS WITH HOMOGENEOUS EMITTER 134
7.2.4 SOLAR CELLS WITH SELECTIVE EMITTER 136
7.2.5 SOLAR CELL LOSS ANALYSIS 137
7.2.6 OPTIMIZATION ROUTES 140
7.3 CHAPTER SUMMARY 143
8 SUMMARY AND OUTLOOK 145
8.1 SUMMARY 145
8.2 OUTLOOK 147
APPENDIX 149
LIST OF ABBREVIATIONS 151
LIST OF SYMBOLS 155
REFERENCES 161
PUBLICATIONS 175
ACKNOWLEDGMENTS 177
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| spelling | Feldmann, Frank Verfasser (DE-588)1078122598 aut Carrier-selective contacts for high-efficiency Si solar cells vorgelegt von Frank Feldmann Carrier-selective contacts for high-efficiency Silicon solar cells [Stuttgart] Fraunhofer Verlag 2015 viii, 177 Seiten Illustrationen, Diagramme txt rdacontent n rdamedia nc rdacarrier Solar energy and systems research Dissertation Albert-Ludwigs-Universität Feiburg 2015 Solarzelle (DE-588)4181740-0 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Solarzelle (DE-588)4181740-0 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=028704785&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Feldmann, Frank Carrier-selective contacts for high-efficiency Si solar cells Solarzelle (DE-588)4181740-0 gnd |
| subject_GND | (DE-588)4181740-0 (DE-588)4113937-9 |
| title | Carrier-selective contacts for high-efficiency Si solar cells |
| title_alt | Carrier-selective contacts for high-efficiency Silicon solar cells |
| title_auth | Carrier-selective contacts for high-efficiency Si solar cells |
| title_exact_search | Carrier-selective contacts for high-efficiency Si solar cells |
| title_full | Carrier-selective contacts for high-efficiency Si solar cells vorgelegt von Frank Feldmann |
| title_fullStr | Carrier-selective contacts for high-efficiency Si solar cells vorgelegt von Frank Feldmann |
| title_full_unstemmed | Carrier-selective contacts for high-efficiency Si solar cells vorgelegt von Frank Feldmann |
| title_short | Carrier-selective contacts for high-efficiency Si solar cells |
| title_sort | carrier selective contacts for high efficiency si solar cells |
| topic | Solarzelle (DE-588)4181740-0 gnd |
| topic_facet | Solarzelle Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=028704785&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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