Polarization Configuration-Dependent Piezoelectric Response in Few-Layer Rhombohedral MoS2
- 주제(키워드) Sliding ferroelectrics , 3r MoS2 , Piezoelectric coefficient , Atomic force microscopy
- 발행기관 서강대학교 일반대학원
- 지도교수 양상모
- 발행년도 2026
- 학위수여년월 2026. 2
- 학위명 석사
- 학과 및 전공 일반대학원 물리학과
- 실제URI http://www.dcollection.net/handler/sogang/000000082388
- UCI I804:11029-000000082388
- 본문언어 영어
- 저작권 논문은 저작권에 의해 보호받습니다.
목차
List of Figures 6
Abstract 9
국문 초록 11
1. Introduction 13
1.1 Limitations of conventional ferroelectrics 13
1.2 Sliding ferroelectricity 17
1.3 Piezoelectricity and its relation to ferroelectricity 19
1.4 Research strategy 23
1.5 Material selection and advantages of 3R MoS2 27
1.5.1 Large area ferroelectric domains without moiré induced domain pinning 27
1.5.2 Superior piezoelectric and mechanical properties of 2D 3R MoS2 32
2. Experimental details 34
2.1. Sample fabrication 34
2.2. Kelvin probe microscopy 37
2.2.1 Specification of Kelvin probe microscopy 37
2.2.2 Surface potential difference in 3R MoS2 40
2.3. Piezoresponse force microscopy 42
2.3.1. Specification of piezoresponse force microscopy 42
2.3.2 Piezoelectric coefficient measurement and calibration 44
3. Results & Discussion 46
3.1. Polarization analysis in 3R MoS2 46
3.2. Piezoelectric coefficient measurement 53
4. Conclusion 58
5. References 61
