Compliant and stretchable thermoelectric coils for energy harvesting in miniature flexible devices
Abstract
With accelerating trends in miniaturization of semiconductor devices, techniques for energy harvesting become increasingly important, especially in wearable technologies and sensors for the internet of things. Although thermoelectric systems have many attractive attributes in this context, maintaining large temperature differences across the device terminals and achieving low–thermal impedance interfaces to the surrounding environment become increasingly difficult to achieve as the characteristic dimensions decrease. Here, we propose and demonstrate an architectural solution to this problem, where thin-film active materials integrate into compliant, open three-dimensional (3D) forms. This approach not only enables efficient thermal impedance matching but also multiplies the heat flow through the harvester, thereby increasing the efficiencies for power conversion. Interconnected arrays of 3D thermoelectric coils built using microscale ribbons of monocrystalline silicon as the active material demonstrate these concepts. Quantitative measurements and simulations establish the basic operating principles and the key design features. The results suggest a scalable strategy for deploying hard thermoelectric thin-film materials in harvesters that can integrate effectively with soft materials systems, including those of the human body.
- Authors:
-
- Univ. of Illinois at Urbana-Champaign, IL (United States)
- California Inst. of Technology (CalTech), Pasadena, CA (United States); Northwestern Univ., Evanston, IL (United States); Stanford Univ., Palo Alto, CA (United States)
- Northwestern Univ., Evanston, IL (United States)
- Yonsei Univ., Seoul (Korea)
- Northwestern Univ., Evanston, IL (United States); Wuhan Univ. of Technology (China)
- Univ. of Illinois at Urbana-Champaign, IL (United States); Univ. of Michigan, Ann Arbor, MI (United States)
- Univ. of Illinois at Urbana-Champaign, IL (United States); Columbia Univ., New York, NY (United States)
- Tsinghua Univ., Beijing (China)
- Univ. of Illinois at Urbana-Champaign, IL (United States); Northwestern Univ., Evanston, IL (United States)
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC); Univ. of Illinois at Urbana-Champaign, IL (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); National Science Foundation (NSF); National Research Foundation of Korea (NRF)
- OSTI Identifier:
- 1566714
- Alternate Identifier(s):
- OSTI ID: 1875107
- Grant/Contract Number:
- FG02-07ER46471; SC0001299
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Science Advances
- Additional Journal Information:
- Journal Volume: 4; Journal Issue: 11; Journal ID: ISSN 2375-2548
- Publisher:
- AAAS
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; solar (photovoltaic); solar (thermal); solid state lighting; phonons; thermal conductivity; thermoelectric; defects; mechanical behavior; charge transport; spin dynamics; materials and chemistry by design; optics; synthesis (novel materials); synthesis (self-assembly); synthesis (scalable processing)
Citation Formats
Nan, Kewang, Kang, Stephen Dongmin, Li, Kan, Yu, Ki Jun, Zhu, Feng, Wang, Juntong, Dunn, Alison C., Zhou, Chaoqun, Xie, Zhaoqian, Agne, Matthias T., Wang, Heling, Luan, Haiwen, Zhang, Yihui, Huang, Yonggang, Snyder, G. Jeffrey, and Rogers, John A. Compliant and stretchable thermoelectric coils for energy harvesting in miniature flexible devices. United States: N. p., 2018.
Web. doi:10.1126/sciadv.aau5849.
Nan, Kewang, Kang, Stephen Dongmin, Li, Kan, Yu, Ki Jun, Zhu, Feng, Wang, Juntong, Dunn, Alison C., Zhou, Chaoqun, Xie, Zhaoqian, Agne, Matthias T., Wang, Heling, Luan, Haiwen, Zhang, Yihui, Huang, Yonggang, Snyder, G. Jeffrey, & Rogers, John A. Compliant and stretchable thermoelectric coils for energy harvesting in miniature flexible devices. United States. https://doi.org/10.1126/sciadv.aau5849
Nan, Kewang, Kang, Stephen Dongmin, Li, Kan, Yu, Ki Jun, Zhu, Feng, Wang, Juntong, Dunn, Alison C., Zhou, Chaoqun, Xie, Zhaoqian, Agne, Matthias T., Wang, Heling, Luan, Haiwen, Zhang, Yihui, Huang, Yonggang, Snyder, G. Jeffrey, and Rogers, John A. Fri .
"Compliant and stretchable thermoelectric coils for energy harvesting in miniature flexible devices". United States. https://doi.org/10.1126/sciadv.aau5849. https://www.osti.gov/servlets/purl/1566714.
@article{osti_1566714,
title = {Compliant and stretchable thermoelectric coils for energy harvesting in miniature flexible devices},
author = {Nan, Kewang and Kang, Stephen Dongmin and Li, Kan and Yu, Ki Jun and Zhu, Feng and Wang, Juntong and Dunn, Alison C. and Zhou, Chaoqun and Xie, Zhaoqian and Agne, Matthias T. and Wang, Heling and Luan, Haiwen and Zhang, Yihui and Huang, Yonggang and Snyder, G. Jeffrey and Rogers, John A.},
abstractNote = {With accelerating trends in miniaturization of semiconductor devices, techniques for energy harvesting become increasingly important, especially in wearable technologies and sensors for the internet of things. Although thermoelectric systems have many attractive attributes in this context, maintaining large temperature differences across the device terminals and achieving low–thermal impedance interfaces to the surrounding environment become increasingly difficult to achieve as the characteristic dimensions decrease. Here, we propose and demonstrate an architectural solution to this problem, where thin-film active materials integrate into compliant, open three-dimensional (3D) forms. This approach not only enables efficient thermal impedance matching but also multiplies the heat flow through the harvester, thereby increasing the efficiencies for power conversion. Interconnected arrays of 3D thermoelectric coils built using microscale ribbons of monocrystalline silicon as the active material demonstrate these concepts. Quantitative measurements and simulations establish the basic operating principles and the key design features. The results suggest a scalable strategy for deploying hard thermoelectric thin-film materials in harvesters that can integrate effectively with soft materials systems, including those of the human body.},
doi = {10.1126/sciadv.aau5849},
journal = {Science Advances},
number = 11,
volume = 4,
place = {United States},
year = {Fri Nov 02 00:00:00 EDT 2018},
month = {Fri Nov 02 00:00:00 EDT 2018}
}
Web of Science
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