Title

Structural and piezoelectric properties of self-assembled diphenylalanine peptide nanostructures according to solvent and substrate

Alternative Title

자기조립된 디페닐알라닌 펩타이드 나노구조체의 용매와 기판에 따른 구조 및 압전 특성 분석

DGIST Authors

Yuseok Kim ; Ju-Hyuck Lee ; Jongmin Choi

Advisor

이주혁

Co-Advisor(s)

Jongmin Choi

Issued Date

2023

Awarded Date

2023-02-01

Citation

Yuseok Kim. (2023). Structural and piezoelectric properties of self-assembled diphenylalanine peptide nanostructures according to solvent and substrate. doi: 10.22677/THESIS.200000658664

Type

Thesis

Description

Diphenylalanine, Self-assembly, Piezoelectric nanogenerator

Table Of Contents

Ⅰ. Introduction 1
1.1 Energy Harvesting for Implantable Medical Devices 1
1.1.1 Piezoelectric Effect 3
1.1.2 Morphotropic Phase Boundaries in Piezoelectric Materials 4
1.1.3 Piezoelectric Nanogenerator 5
1.2 Biomolecular Piezoelectric Materials 7
1.2.1 Piezoelectricity of FF nanotube 8
1.3 Unidirectional alignment of FF 10
1.3.1 Ferrofluid-Assisted Assembly Process 10
1.3.2 Electric-Field Induced Growth Method 13
1.3.3 Meniscus-Driven Self-assembly Process 16
1.4 Meniscus-Driven Self-assembly Process with Controlled Zwitterion Properties 18
Ⅱ. Experimental Methods 20
2.1 Chemicals and materials 20
2.2 Fabrication of diphenylalanine peptide nanotubes 20
2.3 Piezoelectric response characterization of FF nanotubes 20
2.4 Fabrication of FF Nanotube based PENGs 21
2.5 Characterization of FF Nanotube based PENGs 21
Ⅲ. Results and Discussions 22
3.1 FF Nanotubes on Gold Coated Substrate 23
3.1.1 Synthesis and Characterization of FF Nanotube 23
3.1.2 Piezoelectric Properties and Polarization of FF Nanotube 29
3.1.3 Characterization of FF Nanotube based PENG 31
3.2 FF Nanotubes on Aluminium Coated Substrate 32
3.2.1 Synthesis and Characterization of FF Nanotube 32
3.2.2 Piezoelectric Properties and Polarization of FF Nanotube 37
3.2.3 Characterization of FF Nanotube based PENG 39
IV. Conclusion 40
V. Reference 42

URI

http://hdl.handle.net/20.500.11750/45731
http://dgist.dcollection.net/common/orgView/200000658664

DOI

10.22677/THESIS.200000658664

Degree

Master

Department

Department of Energy Science and Engineering

Publisher

DGIST

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