초록 ▼

ㅇ 차세대 고성능 유연 p-type (ZT = 0.5) / n-type (ZT = 0.2) 열전 소재 개발
- CNT yarn 제조 및 열전 성능 향상 (p-type CNT yarn ZT = 0.51 at 300 K)
- 블락코폴리머를 활용하여 결정화도가 높은 p-type PEDOT 합성. 전기전도도 > 1000 S/cm, 열전계수 > 20 μV/K 의 PEDOT 단독필름 제조
- Reduced graphene oxide/PEDOT:PSS/Tellurium p-type 유연 열전 필름 제조 (ZT = 0.213 at

ㅇ 차세대 고성능 유연 p-type (ZT = 0.5) / n-type (ZT = 0.2) 열전 소재 개발
- CNT yarn 제조 및 열전 성능 향상 (p-type CNT yarn ZT = 0.51 at 300 K)
- 블락코폴리머를 활용하여 결정화도가 높은 p-type PEDOT 합성. 전기전도도 > 1000 S/cm, 열전계수 > 20 μV/K 의 PEDOT 단독필름 제조
- Reduced graphene oxide/PEDOT:PSS/Tellurium p-type 유연 열전 필름 제조 (ZT = 0.213 at 300K)
- n-type Graphene 양자 제한을 통한 밴드갭 제어 및 이를 바탕으로 -520 μV/K 의 Seebeck coefficient 및 ZT ~ 0.06 at 520K 수준의 열전효율을 확보함
- CNT yarn 제조 및 열전 성능 향상 (n-type CNT yarn ZT = 0.53 at 300 K)

ㅇ 열전달 극대화를 위한 유연 방열 소재 개발 (열전도도 4 W/mK)
- 복합 입자와 접착 소재의 친화성 향상에 따른 GNP의 균일한 분산 가능
- 연속된 네트워크 형성에 따른 열전도도 향상 (열전도도 = 4.2 W/mK (through-plane))

ㅇ 소자 및 모듈 구조의 최적화를 통한 목표 발전량 달성 (곡률 반경 50 mm, 생산 전력량 50 μW at △T = 50 K & 4 μW at △T = 5 K )
- Reduced graphene oxide/PEDOT:PSS/Tellurium 유연 열전 필름 기반 열전 소자 개발 (power density of 5 couples = 650 nW/cm² at △T = 50 K)
- 240 pn pairs of CNT yarn, Pmax = 4.2 μW at △T = 5 K and 85.7 μW at △T = 40 K

(출처 : 보고서 초록 3p)

Abstract ▼

II. Needs
- In the case of thermoelectric technology, unlike other renewable energies influenced by day and night or weather, it is easy to produce electric power anywhere in a heat source environment. So, it is widely used for self-power for telecommunication equipment and IoT in future.
- I

II. Needs
- In the case of thermoelectric technology, unlike other renewable energies influenced by day and night or weather, it is easy to produce electric power anywhere in a heat source environment. So, it is widely used for self-power for telecommunication equipment and IoT in future.
- In particular, the thermoelectric material with flexibility has a wide applicability in development, but it is a future-oriented technology that needs to overcome the problems such as performance until now. It uses the printing process technology, which is hardly tried in the development of the conventional thermoelectric device, It is a technology that can integrate devices, diversify the shape and reduce the cost.

III. Contents
ㅇ Development of next generation high performance flexible p-type (ZT = 0.5) /n-type (ZT = 0.2) thermoelectric material
- high efficiency p-type thermoelectric material based on polymer/nano carbon
- high efficiency n-type thermoelectric material based on inorganic semiconductor nanoparticles
ㅇ Development of flexible heat dissipation material to maximize heat transfer(thermal conductivity 4 W / mK)
- high performance thermal transfer layer for flexible thermoelectric devices
- high performance heat sink for flexible thermoelectric devices (heat sink)
ㅇ Achievement of target power generation through optimization of device and module structure (curvature radius 50 mm, production power 50 μW at △ T = 50 K & 4 μW at △ T = 5 K)

IV. Results
p-type thermoelectric materials (ZT)
• p-type CNT yarn ZT = 0.51 at 300 K
• Reduced graphene oxide/PEDOT:PSS/Tellurium flexible thermoelectric films (ZT = 0.213 at 300K)

n-type thermoelectric materials (ZT)
• Graphene eebeck coefficient -520 μV/K and ZT ~ 0.06 at 520 K
• CNT yarn (n-type CNT yarn ZT = 0.53 at 300 K)

radius of curvature (mm)
• p-type CNT yarn (radius of curvature < 7.5 mm)
• n-type SWCNT film (radius of curvature < 9.6 mm)

Thermal conductivity(W/mK)
• thermal conductivity = 4.2 W/mK (through-plane)) power density (μW)
• Reduced graphene oxide/PEDOT:PSS/Tellurium (power density of 5 couples = 650 nW/cm2 at △T = 50 K)
• 240 pn pairs of CNT yarn, Pmax = 4.2 μW at △T = 5 K and 85.7 μW at △T = 40 K

V. Future Plan
Next-generation flexible thermoelectric device technology can be expected to be applied to self-power generation of wearable devices and flexible devices utilizing various types of heat sources. The effects of the technology preemption are expected to lead to the development of various application products and related industries and service industries. Especially, the wearable equipment market in smart devices, bio / medical, military and service industries will grow sharply

(출처 : SUMMARY 5p)

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 보고서 초록 ... 3
• 국문 요약문 ... 4
• SUMMARY ... 5
• CONTENTS ... 6
• 목차 ... 7
• 제1장 연구과제의 개요 ... 8
• 제2장 국내외 기술개발 현황 ... 10
• 제3장 연구수행 내용 및 결과 ... 12
• 제1절 연구목표 ... 12
• 제2절 연구내용 ... 14
• 제3절 연구결과 ... 16
• 제4장 목표달성도 및 관련분야에의 기여도 ... 36
• 제1절 연구개발 목표달성도 ... 36
• 제2절 관련분야에의 기여도 ... 37
• 제5장 연구결과의 활용계획 ... 39
• 제6장 연구과정에서 수집한 해외과학기술정보 ... 41
• 끝페이지 ... 43