Title

Development of stretchable alternating current electroluminescent devices based on ionic liquid embedded thermoplastic polyurethane electrodes

Alternative Title

이온성 액체를 함유한 열가소성 폴리우레탄을 전극으로 하는 교류구동 발광소자의 개발

DGIST Authors

Tae-Young Hwang ; Jung-Il Hong ; Soon Moon Jeong

Advisor

홍정일

Co-Advisor(s)

Soon Moon Jeong

Issued Date

2023

Awarded Date

2023-02-01

Citation

Tae-Young Hwang. (2023). Development of stretchable alternating current electroluminescent devices based on ionic liquid embedded thermoplastic polyurethane electrodes. doi: 10.22677/THESIS.200000657301

Type

Thesis

Description

교류구동 발광소자, 고체전해질 전극, ion gel

Table Of Contents

Ⅰ. Introduction 1
1.1 Electroluminescence device 1
1.1.1 Light emitting mechanism of Light emitting diode 1
1.1.2 Light emitting mechanism of Alternating current electroluminescence 4
2.1 Ionic thermoplastic polyurethane (i-TPU) 11
2.1.1 Thermoplastic polyurethane (TPU) 11
2.1.2 [EMIM]+ [TFSI]- ion liquid 14
3.1 i-TPU electrode measurement 16
3.1.1 X-ray diffraction (XRD) 16
3.1.2 Raman spectroscopy (RM) 17
3.1.3 Ultraviolet-Visible-Near infrared spectrometer 19
Ⅱ. Results & Discussion 22
4.1 i-TPU ion gel electrode 22
4.1.1 Fabrication of i-TPU 22
4.1.2 X-ray diffraction (XRD) 25
4.1.3 Raman spectroscopy (RM) 28
4.1.4 Ultraviolet-Visible-Near infrared spectroscopy 34
4.1.5 60 wt% i-TPU for ACEL electrodes 37
4.2 ACEL device with dual i-TPU electrodes 41
4.2.1 ACEL device structure 41
4.2.2 EL characteristics 43
4.2.3 Stretchable EL device 46
4.3 Comparison of various ACEL electrodes 48
Ⅲ. Conclusion 51
Ⅳ. Reference 52

URI

http://hdl.handle.net/20.500.11750/45721
http://dgist.dcollection.net/common/orgView/200000657301

DOI

10.22677/THESIS.200000657301

Degree

Master

Department

Department of Physics and Chemistry

Publisher

DGIST

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