Indium phosphide and Zinc selenide quantum dots for light emitting devices: relationships between surface structure and device performance
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
2014
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis Inhaltsverzeichnis |
| Beschreibung: | VII, 153 S. Ill., graph. Darst. |
Internformat
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| 300 | |a VII, 153 S. |b Ill., graph. Darst. | ||
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| 502 | |a Potsdam, Univ., Diss., 2014 | ||
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Datensatz im Suchindex
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|---|---|
| adam_text | CONTENTS
1 MOTIVATION 1
2 FUNDAMENTALS 5
2.1 QUANTUM DOTS 5
2.1.1 ELECTRONIC STRUCTURE 5
2.1.2 SPECTROSCOPY 7
2.1.3 SYNTHESIS METHODS 10
2.1.4 CORE/SHELL STRUCTURES 12
2.1.5 CAPPING LIGANDS 15
2.2 APPLICATIONS 17
2.2.1 OVERVIEW 17
2.2.2 QD-LED STRUCTURE AND OPERATING PRINCIPLE 18
2.2.3 OLED CHARACTERIZATION 20
2.2.4 CHARGE INJECTION INTO QDS 21
2.3 EARLIER DEVELOPMENTS 22
3 PURITY ENABLES EFFICIENT QD-LEDS 25
3.1 DEVICE PERFORMANCE ACHIEVED WITH HIGH PURITY QDS 25
3.2 TGA AS PURITY MEASUREMENT METHOD 26
3.3 ESTIMATION OF OPTIMUM RESIDUAL MASS 28
3.4 DEVICE PERFORMANCE WITH INTENTIONALLY REDUCED PURITY 29
3.5 ODE OLIGOMERIZATION 31
3.6 ALTERNATIVE SOLVENTS 33
4 ORGANIC LIGANDS 37
4.1 MOTIVATION 37
4.2 POST-SYNTHETIC LIGAND EXCHANGES 37
4.3 IN SITU FUNCTIONALIZATION WITH ZINC CARBOXYLATES 39
4.4 ALKYL CHAIN LENGTH IN THIN FILM AND DEVICE 41
4.5 UNCONVENTIONAL ALIPHATIC LIGANDS 45
4.6 ELECTRONIC STRUCTURE OF AROMATIC LIGANDS 47
HTTP://D-NB.INFO/1072563266
4.7 SYNTHESIS DEVELOPMENT TOWARDS AROMATIC QDS 49
4.7.1 PRECURSOR SYNTHESIS 49
4.7.2 FIRST GENERATION: REPLACING ZINC CARBOXYLATE 50
4.7.3 SECOND GENERATION: ALL-AROMATIC REACTION MIXTURE 52
4.7.4 ADVANCED AROMATIC LIGANDS 56
4.7.5 AROMATIC ZNSE QDS 61
4.8 SOLUBILITY BEHAVIOUR 61
4.9 DEVICE APPLICATION 62
4.10 CONCLUSIONS 65
5 INORGANIC SHELL 67
5.1 ZNSE/ZNS MULTISHELL 67
5.2 RED SHIFT BY ZNSE SHELL THICKNESS 69
5.3 IMPROVED CONFINEMENT BY ZNS THICKNESS 70
5.4 LATTICE MATCHING FOR PERFECT INTERFACE 74
5.5 GIANT SHELL 76
5.5.1 GEOMETRY AND STOICHIOMETRY 76
5.5.2 INITIAL EXPERIMENTS 77
5.5.3 SIZING CURVE FOR INP CORE QDS 78
5.5.4 ABSORPTION SPECTROSCOPY FOR MONITORING SHELL GROWTH 79
5.5.5 ZNSE GIANT SHELL SYNTHESIS 81
5.5.6 ZNSE/ZNS GIANT SHELL SYNTHESIS 83
5.5.7 PERFORMANCE OF GIANT SHELL QDS 86
5.6 CONCLUSION 90
6 SIZE TUNING FOR GREEN AND RED QD-LEDS 93
6.1 SIZE CONTROL BY SYNTHESIS CONDITIONS 93
6.2 GREEN AND RED INP QDS 94
6.3 COLOR-SATURATED QD-LEDS 96
7 ZNSE QDS FOR BLUE QD-LEDS 101
7.1 MOTIVATION 101
7.2 CORE SYNTHESIS 102
7.3 CORE GROWTH FOR BAND GAP ADJUSTMENT 103
7.4 SHELL SYNTHESIS 104
7.5 DEVICE ASSEMBLY 105
7.5.1 HOLE TRANSPORT LAYER INVESTIGATION 105
7.5.2 DEVICE PERFORMANCE 107
7.6 CONCLUSION 108
8 PHOTOPHYSICS AND IMPLICATIONS FOR DEVICES 109
8.1 TRANSITION FROM SOLUTION TO THIN FILM 109
8.2 PHOTOSTABILITY ILL
8.3 SPIN-COATING SOLVENT 113
8.4 QD POWDER ANNEALING 114
8.5 QD FILM ANNEALING 117
8.6 QD-LED STABILITY 119
9 CONCLUSIONS 123
10 EXPERIMENTAL DETAILS 129
10.1 MATERIALS AND METHODS 129
10.2 SYNTHESIS PROCEDURES 130
10.2.1 PRECURSOR SYNTHESIS 130
10.2.2 INP CORE SYNTHESIS IN SOLUTION 131
10.2.3 INP CORE SYNTHESIS BY SOLVENT-FREE METHOD 131
10.2.4 ZNSE/ZNS MULTISHELL SYNTHESIS ON INP CORES 131
10.2.5 GIANT SHELL SYNTHESIS ON INP CORES 132
10.2.6 INP CORE AND SHELL SYNTHESIS WITH AROMATIC LIGANDS 132
10.2.7 ZNSE/ZNS NANOPARTICLES 132
10.2.8 WORKUP AND PURIFICATION 133
10.3 DEVICE FABRICATION 133
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| author | Ippen, Christian Justus 1987- |
| author_GND | (DE-588)107225011X |
| author_facet | Ippen, Christian Justus 1987- |
| author_role | aut |
| author_sort | Ippen, Christian Justus 1987- |
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| bvnumber | BV042641924 |
| ctrlnum | (OCoLC)911987019 (DE-599)GBV827086954 |
| dewey-full | 537.6226 |
| dewey-hundreds | 500 - Natural sciences and mathematics |
| dewey-ones | 537 - Electricity and electronics |
| dewey-raw | 537.6226 |
| dewey-search | 537.6226 |
| dewey-sort | 3537.6226 |
| dewey-tens | 530 - Physics |
| discipline | Physik |
| format | Thesis Book |
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| indexdate | 2024-07-10T07:06:34Z |
| institution | BVB |
| language | English |
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| physical | VII, 153 S. Ill., graph. Darst. |
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| spelling | Ippen, Christian Justus 1987- Verfasser (DE-588)107225011X aut Indium phosphide and Zinc selenide quantum dots for light emitting devices relationships between surface structure and device performance von Christian Justus Ippen 2014 VII, 153 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Potsdam, Univ., Diss., 2014 Lumineszenzdiode (DE-588)4125154-4 gnd rswk-swf Photolumineszenz (DE-588)4174517-6 gnd rswk-swf Quantenpunkt (DE-588)4263396-5 gnd rswk-swf Elektrolumineszenz (DE-588)4151823-8 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Quantenpunkt (DE-588)4263396-5 s Lumineszenzdiode (DE-588)4125154-4 s Photolumineszenz (DE-588)4174517-6 s Elektrolumineszenz (DE-588)4151823-8 s DE-604 DE-601 pdf/application http://www.gbv.de/dms/tib-ub-hannover/827086954.pdf Inhaltsverzeichnis DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=028074285&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Ippen, Christian Justus 1987- Indium phosphide and Zinc selenide quantum dots for light emitting devices relationships between surface structure and device performance Lumineszenzdiode (DE-588)4125154-4 gnd Photolumineszenz (DE-588)4174517-6 gnd Quantenpunkt (DE-588)4263396-5 gnd Elektrolumineszenz (DE-588)4151823-8 gnd |
| subject_GND | (DE-588)4125154-4 (DE-588)4174517-6 (DE-588)4263396-5 (DE-588)4151823-8 (DE-588)4113937-9 |
| title | Indium phosphide and Zinc selenide quantum dots for light emitting devices relationships between surface structure and device performance |
| title_auth | Indium phosphide and Zinc selenide quantum dots for light emitting devices relationships between surface structure and device performance |
| title_exact_search | Indium phosphide and Zinc selenide quantum dots for light emitting devices relationships between surface structure and device performance |
| title_full | Indium phosphide and Zinc selenide quantum dots for light emitting devices relationships between surface structure and device performance von Christian Justus Ippen |
| title_fullStr | Indium phosphide and Zinc selenide quantum dots for light emitting devices relationships between surface structure and device performance von Christian Justus Ippen |
| title_full_unstemmed | Indium phosphide and Zinc selenide quantum dots for light emitting devices relationships between surface structure and device performance von Christian Justus Ippen |
| title_short | Indium phosphide and Zinc selenide quantum dots for light emitting devices |
| title_sort | indium phosphide and zinc selenide quantum dots for light emitting devices relationships between surface structure and device performance |
| title_sub | relationships between surface structure and device performance |
| topic | Lumineszenzdiode (DE-588)4125154-4 gnd Photolumineszenz (DE-588)4174517-6 gnd Quantenpunkt (DE-588)4263396-5 gnd Elektrolumineszenz (DE-588)4151823-8 gnd |
| topic_facet | Lumineszenzdiode Photolumineszenz Quantenpunkt Elektrolumineszenz Hochschulschrift |
| url | http://www.gbv.de/dms/tib-ub-hannover/827086954.pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=028074285&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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