Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | 이재동 | - |
| dc.contributor.author | Su Yeong Lee | - |
| dc.date.accessioned | 2023-09-18T21:00:51Z | - |
| dc.date.available | 2023-09-18T21:00:51Z | - |
| dc.date.issued | 2023 | - |
| dc.identifier.uri | http://hdl.handle.net/20.500.11750/46412 | - |
| dc.identifier.uri | http://dgist.dcollection.net/common/orgView/200000686230 | - |
| dc.description | First principle calculation; Dark exciton; 2D materials; Shottky barrier height; Black phosphorus; MoS2 | - |
| dc.description.tableofcontents | I. INTRODUCTION 1 1.1 Density Functional Theory 1 1.1.1 Hohenberg Kohn Theorem 1 1.1.2 Kohn-Sham equation 4 1.2 Exchange correlation functionals 6 1.2.1 The local-density approximation (LDA) 7 1.2.2 Generalized gradient approximation (GGA) 9 1.3 Energy band Theory 10 1.3.1 Bloch's Theorem 10 1.3.2 The Brillouin zone 11 1.4 2D Materials 14 1.4.1 An Introduction to Two-Dimensional Materials 14 1.4.2 Types and Basic Properties of Two-Dimensional Semiconductor Materials 17 II. Schottky Barrier in Few-Layer Black Phosphorus Metal Contacts 22 2.1 Introduction 22 2.2 Method 28 2.2.1 Density Functional Theory Calculation 28 2.2.2 The band unfolding technique 30 2.3 Results and Discussion 32 2.3.1 New Method to Determine Schottky Barrier 32 2.3.2 Few-Layer BP - Ti Contact System 33 2.3.3 Few-Layer BP - Sc Contact System 38 2.3.4 Few-layer BP - Al contact system 40 2.3.5 Schottky barrier height calculation using the Schottky-Mott rule 42 2.4 Conclusion 44 III. Electronic and transport properties of black phosphorus encapsulated in between h-BN layer 46 3.1 Introduction 46 3.2 Method 48 3.2.1 Carrier mobility formula 48 3.2.2 Computational Method 50 3.3 Results and Discussion 51 3.3.1 Mobility calculation of pristine BP 51 3.3.2 Mobility calculation of BN/BP/BN heterostructure 54 3.4 Conclusion 60 IV. Strain-induced dark exciton generation in rippled monolayer MoS2 62 4.1 Introduction 62 4.2 Method 66 4.3 Results and Discussion 68 4.4 Conclusion 78 References 80 요약문 92 |
- |
| dc.format.extent | 92 | - |
| dc.language | eng | - |
| dc.publisher | DGIST | - |
| dc.title | Electronic and transport properties of two dimensional semiconductors | - |
| dc.type | Thesis | - |
| dc.identifier.doi | 10.22677/THESIS.200000686230 | - |
| dc.description.degree | Doctor | - |
| dc.contributor.department | Department of Physics and Chemistry | - |
| dc.contributor.coadvisor | Hyunmin Kim | - |
| dc.date.awarded | 2023-08-01 | - |
| dc.publisher.location | Daegu | - |
| dc.description.database | dCollection | - |
| dc.citation | XT.MD 이56 202308 | - |
| dc.date.accepted | 2023-09-14 | - |
| dc.contributor.alternativeDepartment | 화학물리학과 | - |
| dc.subject.keyword | First principle calculation | - |
| dc.subject.keyword | Dark exciton | - |
| dc.subject.keyword | 2D materials | - |
| dc.subject.keyword | Shottky barrier height | - |
| dc.subject.keyword | Black phosphorus | - |
| dc.subject.keyword | MoS2 | - |
| dc.contributor.affiliatedAuthor | Su Yeong Lee | - |
| dc.contributor.affiliatedAuthor | JaeDong Lee | - |
| dc.contributor.affiliatedAuthor | Hyunmin Kim | - |
| dc.contributor.alternativeName | 이수영 | - |
| dc.contributor.alternativeName | JaeDong Lee | - |
| dc.contributor.alternativeName | 김현민 | - |
| dc.rights.embargoReleaseDate | 2028-08-31 | - |
- Files in This Item:
-
There are no files associated with this item.
- Appears in Collections:
- Department of Physics and Chemistry Theses Ph.D.
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.