A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics

Highlights Construction of a viscoelastic composite nacre with a ripple-like layered architecture through supramolecular interactions.Outstanding self-adhesion, self-healing and scrape-resistant mechanical and thermal properties.Utility as an integrated heat spreader and TIMs for “chameleon-like” th...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Wang, Jiemin [verfasserIn] Yang, Tairan Wang, Zequn Sun, Xuhui An, Meng Liu, Dan Zhao, Changsheng Zhang, Gang Lei, Weiwei

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Boron nitride nanosheets Nacre-inspired composites Viscoelastic Thermochromic Smart thermal management

Anmerkung:	© The Author(s) 2023

Übergeordnetes Werk:	Enthalten in: Nano-Micro letters - Berlin : Springer, 2009, 15(2023), 1 vom: 05. Juli
Übergeordnetes Werk:	volume:15 ; year:2023 ; number:1 ; day:05 ; month:07

Links:	Volltext

DOI / URN:	10.1007/s40820-023-01149-8

Katalog-ID:	SPR05216411X

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520			\|a Abstract Cutting-edge heat spreaders for soft and planar electronics require not only high thermal conductivity and a certain degree of flexibility but also remarkable self-adhesion without thermal interface materials, elasticity, arbitrary elongation along with soft devices, and smart properties involving thermal self-healing, thermochromism and so on. Nacre-like composites with excellent in-plane heat dissipation are ideal as heat spreaders for thin and planar electronics. However, the intrinsically poor viscoelasticity, i.e., adhesion and elasticity, prevents them from simultaneous self-adhesion and arbitrary elongation along with current flexible devices as well as incurring high interfacial thermal impedance. In this paper, we propose a soft thermochromic composite (STC) membrane with a layered structure, considerable stretchability, high in-plane thermal conductivity (~ 30 W $ m^{−1} $ $ K^{−1} $), low thermal contact resistance (~ 12 $ mm^{2} $ K $ W^{−1} $, 4–5 times lower than that of silver paste), strong yet sustainable adhesion forces (~ 4607 J $ m^{−2} $, 2220 J $ m^{−2} $ greater than that of epoxy paste) and self-healing efficiency. As a self-adhesive heat spreader, it implements efficient cooling of various soft electronics with a temperature drop of 20 °C than the polyimide case. In addition to its self-healing function, the chameleon-like behavior of STC facilitates temperature monitoring by the naked eye, hence enabling smart thermal management.
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allfields	10.1007/s40820-023-01149-8 doi (DE-627)SPR05216411X (SPR)s40820-023-01149-8-e DE-627 ger DE-627 rakwb eng Wang, Jiemin verfasserin aut A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Highlights Construction of a viscoelastic composite nacre with a ripple-like layered architecture through supramolecular interactions.Outstanding self-adhesion, self-healing and scrape-resistant mechanical and thermal properties.Utility as an integrated heat spreader and TIMs for “chameleon-like” thermal management of planar soft electronics. Abstract Cutting-edge heat spreaders for soft and planar electronics require not only high thermal conductivity and a certain degree of flexibility but also remarkable self-adhesion without thermal interface materials, elasticity, arbitrary elongation along with soft devices, and smart properties involving thermal self-healing, thermochromism and so on. Nacre-like composites with excellent in-plane heat dissipation are ideal as heat spreaders for thin and planar electronics. However, the intrinsically poor viscoelasticity, i.e., adhesion and elasticity, prevents them from simultaneous self-adhesion and arbitrary elongation along with current flexible devices as well as incurring high interfacial thermal impedance. In this paper, we propose a soft thermochromic composite (STC) membrane with a layered structure, considerable stretchability, high in-plane thermal conductivity (~ 30 W $ m^{−1} $ $ K^{−1} $), low thermal contact resistance (~ 12 $ mm^{2} $ K $ W^{−1} $, 4–5 times lower than that of silver paste), strong yet sustainable adhesion forces (~ 4607 J $ m^{−2} $, 2220 J $ m^{−2} $ greater than that of epoxy paste) and self-healing efficiency. As a self-adhesive heat spreader, it implements efficient cooling of various soft electronics with a temperature drop of 20 °C than the polyimide case. In addition to its self-healing function, the chameleon-like behavior of STC facilitates temperature monitoring by the naked eye, hence enabling smart thermal management. Boron nitride nanosheets (dpeaa)DE-He213 Nacre-inspired composites (dpeaa)DE-He213 Viscoelastic (dpeaa)DE-He213 Thermochromic (dpeaa)DE-He213 Smart thermal management (dpeaa)DE-He213 Yang, Tairan aut Wang, Zequn aut Sun, Xuhui aut An, Meng aut Liu, Dan aut Zhao, Changsheng aut Zhang, Gang aut Lei, Weiwei aut Enthalten in Nano-Micro letters Berlin : Springer, 2009 15(2023), 1 vom: 05. Juli (DE-627)680319581 (DE-600)2642093-4 2150-5551 nnns volume:15 year:2023 number:1 day:05 month:07 https://dx.doi.org/10.1007/s40820-023-01149-8 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 1 05 07
spelling	10.1007/s40820-023-01149-8 doi (DE-627)SPR05216411X (SPR)s40820-023-01149-8-e DE-627 ger DE-627 rakwb eng Wang, Jiemin verfasserin aut A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Highlights Construction of a viscoelastic composite nacre with a ripple-like layered architecture through supramolecular interactions.Outstanding self-adhesion, self-healing and scrape-resistant mechanical and thermal properties.Utility as an integrated heat spreader and TIMs for “chameleon-like” thermal management of planar soft electronics. Abstract Cutting-edge heat spreaders for soft and planar electronics require not only high thermal conductivity and a certain degree of flexibility but also remarkable self-adhesion without thermal interface materials, elasticity, arbitrary elongation along with soft devices, and smart properties involving thermal self-healing, thermochromism and so on. Nacre-like composites with excellent in-plane heat dissipation are ideal as heat spreaders for thin and planar electronics. However, the intrinsically poor viscoelasticity, i.e., adhesion and elasticity, prevents them from simultaneous self-adhesion and arbitrary elongation along with current flexible devices as well as incurring high interfacial thermal impedance. In this paper, we propose a soft thermochromic composite (STC) membrane with a layered structure, considerable stretchability, high in-plane thermal conductivity (~ 30 W $ m^{−1} $ $ K^{−1} $), low thermal contact resistance (~ 12 $ mm^{2} $ K $ W^{−1} $, 4–5 times lower than that of silver paste), strong yet sustainable adhesion forces (~ 4607 J $ m^{−2} $, 2220 J $ m^{−2} $ greater than that of epoxy paste) and self-healing efficiency. As a self-adhesive heat spreader, it implements efficient cooling of various soft electronics with a temperature drop of 20 °C than the polyimide case. In addition to its self-healing function, the chameleon-like behavior of STC facilitates temperature monitoring by the naked eye, hence enabling smart thermal management. Boron nitride nanosheets (dpeaa)DE-He213 Nacre-inspired composites (dpeaa)DE-He213 Viscoelastic (dpeaa)DE-He213 Thermochromic (dpeaa)DE-He213 Smart thermal management (dpeaa)DE-He213 Yang, Tairan aut Wang, Zequn aut Sun, Xuhui aut An, Meng aut Liu, Dan aut Zhao, Changsheng aut Zhang, Gang aut Lei, Weiwei aut Enthalten in Nano-Micro letters Berlin : Springer, 2009 15(2023), 1 vom: 05. Juli (DE-627)680319581 (DE-600)2642093-4 2150-5551 nnns volume:15 year:2023 number:1 day:05 month:07 https://dx.doi.org/10.1007/s40820-023-01149-8 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 1 05 07
allfields_unstemmed	10.1007/s40820-023-01149-8 doi (DE-627)SPR05216411X (SPR)s40820-023-01149-8-e DE-627 ger DE-627 rakwb eng Wang, Jiemin verfasserin aut A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Highlights Construction of a viscoelastic composite nacre with a ripple-like layered architecture through supramolecular interactions.Outstanding self-adhesion, self-healing and scrape-resistant mechanical and thermal properties.Utility as an integrated heat spreader and TIMs for “chameleon-like” thermal management of planar soft electronics. Abstract Cutting-edge heat spreaders for soft and planar electronics require not only high thermal conductivity and a certain degree of flexibility but also remarkable self-adhesion without thermal interface materials, elasticity, arbitrary elongation along with soft devices, and smart properties involving thermal self-healing, thermochromism and so on. Nacre-like composites with excellent in-plane heat dissipation are ideal as heat spreaders for thin and planar electronics. However, the intrinsically poor viscoelasticity, i.e., adhesion and elasticity, prevents them from simultaneous self-adhesion and arbitrary elongation along with current flexible devices as well as incurring high interfacial thermal impedance. In this paper, we propose a soft thermochromic composite (STC) membrane with a layered structure, considerable stretchability, high in-plane thermal conductivity (~ 30 W $ m^{−1} $ $ K^{−1} $), low thermal contact resistance (~ 12 $ mm^{2} $ K $ W^{−1} $, 4–5 times lower than that of silver paste), strong yet sustainable adhesion forces (~ 4607 J $ m^{−2} $, 2220 J $ m^{−2} $ greater than that of epoxy paste) and self-healing efficiency. As a self-adhesive heat spreader, it implements efficient cooling of various soft electronics with a temperature drop of 20 °C than the polyimide case. In addition to its self-healing function, the chameleon-like behavior of STC facilitates temperature monitoring by the naked eye, hence enabling smart thermal management. Boron nitride nanosheets (dpeaa)DE-He213 Nacre-inspired composites (dpeaa)DE-He213 Viscoelastic (dpeaa)DE-He213 Thermochromic (dpeaa)DE-He213 Smart thermal management (dpeaa)DE-He213 Yang, Tairan aut Wang, Zequn aut Sun, Xuhui aut An, Meng aut Liu, Dan aut Zhao, Changsheng aut Zhang, Gang aut Lei, Weiwei aut Enthalten in Nano-Micro letters Berlin : Springer, 2009 15(2023), 1 vom: 05. Juli (DE-627)680319581 (DE-600)2642093-4 2150-5551 nnns volume:15 year:2023 number:1 day:05 month:07 https://dx.doi.org/10.1007/s40820-023-01149-8 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 1 05 07
allfieldsGer	10.1007/s40820-023-01149-8 doi (DE-627)SPR05216411X (SPR)s40820-023-01149-8-e DE-627 ger DE-627 rakwb eng Wang, Jiemin verfasserin aut A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Highlights Construction of a viscoelastic composite nacre with a ripple-like layered architecture through supramolecular interactions.Outstanding self-adhesion, self-healing and scrape-resistant mechanical and thermal properties.Utility as an integrated heat spreader and TIMs for “chameleon-like” thermal management of planar soft electronics. Abstract Cutting-edge heat spreaders for soft and planar electronics require not only high thermal conductivity and a certain degree of flexibility but also remarkable self-adhesion without thermal interface materials, elasticity, arbitrary elongation along with soft devices, and smart properties involving thermal self-healing, thermochromism and so on. Nacre-like composites with excellent in-plane heat dissipation are ideal as heat spreaders for thin and planar electronics. However, the intrinsically poor viscoelasticity, i.e., adhesion and elasticity, prevents them from simultaneous self-adhesion and arbitrary elongation along with current flexible devices as well as incurring high interfacial thermal impedance. In this paper, we propose a soft thermochromic composite (STC) membrane with a layered structure, considerable stretchability, high in-plane thermal conductivity (~ 30 W $ m^{−1} $ $ K^{−1} $), low thermal contact resistance (~ 12 $ mm^{2} $ K $ W^{−1} $, 4–5 times lower than that of silver paste), strong yet sustainable adhesion forces (~ 4607 J $ m^{−2} $, 2220 J $ m^{−2} $ greater than that of epoxy paste) and self-healing efficiency. As a self-adhesive heat spreader, it implements efficient cooling of various soft electronics with a temperature drop of 20 °C than the polyimide case. In addition to its self-healing function, the chameleon-like behavior of STC facilitates temperature monitoring by the naked eye, hence enabling smart thermal management. Boron nitride nanosheets (dpeaa)DE-He213 Nacre-inspired composites (dpeaa)DE-He213 Viscoelastic (dpeaa)DE-He213 Thermochromic (dpeaa)DE-He213 Smart thermal management (dpeaa)DE-He213 Yang, Tairan aut Wang, Zequn aut Sun, Xuhui aut An, Meng aut Liu, Dan aut Zhao, Changsheng aut Zhang, Gang aut Lei, Weiwei aut Enthalten in Nano-Micro letters Berlin : Springer, 2009 15(2023), 1 vom: 05. Juli (DE-627)680319581 (DE-600)2642093-4 2150-5551 nnns volume:15 year:2023 number:1 day:05 month:07 https://dx.doi.org/10.1007/s40820-023-01149-8 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 1 05 07
allfieldsSound	10.1007/s40820-023-01149-8 doi (DE-627)SPR05216411X (SPR)s40820-023-01149-8-e DE-627 ger DE-627 rakwb eng Wang, Jiemin verfasserin aut A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Highlights Construction of a viscoelastic composite nacre with a ripple-like layered architecture through supramolecular interactions.Outstanding self-adhesion, self-healing and scrape-resistant mechanical and thermal properties.Utility as an integrated heat spreader and TIMs for “chameleon-like” thermal management of planar soft electronics. Abstract Cutting-edge heat spreaders for soft and planar electronics require not only high thermal conductivity and a certain degree of flexibility but also remarkable self-adhesion without thermal interface materials, elasticity, arbitrary elongation along with soft devices, and smart properties involving thermal self-healing, thermochromism and so on. Nacre-like composites with excellent in-plane heat dissipation are ideal as heat spreaders for thin and planar electronics. However, the intrinsically poor viscoelasticity, i.e., adhesion and elasticity, prevents them from simultaneous self-adhesion and arbitrary elongation along with current flexible devices as well as incurring high interfacial thermal impedance. In this paper, we propose a soft thermochromic composite (STC) membrane with a layered structure, considerable stretchability, high in-plane thermal conductivity (~ 30 W $ m^{−1} $ $ K^{−1} $), low thermal contact resistance (~ 12 $ mm^{2} $ K $ W^{−1} $, 4–5 times lower than that of silver paste), strong yet sustainable adhesion forces (~ 4607 J $ m^{−2} $, 2220 J $ m^{−2} $ greater than that of epoxy paste) and self-healing efficiency. As a self-adhesive heat spreader, it implements efficient cooling of various soft electronics with a temperature drop of 20 °C than the polyimide case. In addition to its self-healing function, the chameleon-like behavior of STC facilitates temperature monitoring by the naked eye, hence enabling smart thermal management. Boron nitride nanosheets (dpeaa)DE-He213 Nacre-inspired composites (dpeaa)DE-He213 Viscoelastic (dpeaa)DE-He213 Thermochromic (dpeaa)DE-He213 Smart thermal management (dpeaa)DE-He213 Yang, Tairan aut Wang, Zequn aut Sun, Xuhui aut An, Meng aut Liu, Dan aut Zhao, Changsheng aut Zhang, Gang aut Lei, Weiwei aut Enthalten in Nano-Micro letters Berlin : Springer, 2009 15(2023), 1 vom: 05. Juli (DE-627)680319581 (DE-600)2642093-4 2150-5551 nnns volume:15 year:2023 number:1 day:05 month:07 https://dx.doi.org/10.1007/s40820-023-01149-8 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 1 05 07
language	English
source	Enthalten in Nano-Micro letters 15(2023), 1 vom: 05. Juli volume:15 year:2023 number:1 day:05 month:07
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author	Wang, Jiemin
spellingShingle	Wang, Jiemin misc Boron nitride nanosheets misc Nacre-inspired composites misc Viscoelastic misc Thermochromic misc Smart thermal management A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics
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topic_title	A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics Boron nitride nanosheets (dpeaa)DE-He213 Nacre-inspired composites (dpeaa)DE-He213 Viscoelastic (dpeaa)DE-He213 Thermochromic (dpeaa)DE-He213 Smart thermal management (dpeaa)DE-He213
topic	misc Boron nitride nanosheets misc Nacre-inspired composites misc Viscoelastic misc Thermochromic misc Smart thermal management
topic_unstemmed	misc Boron nitride nanosheets misc Nacre-inspired composites misc Viscoelastic misc Thermochromic misc Smart thermal management
topic_browse	misc Boron nitride nanosheets misc Nacre-inspired composites misc Viscoelastic misc Thermochromic misc Smart thermal management
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title	A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics
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title_full	A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics
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title_sort	thermochromic, viscoelastic nacre-like nanocomposite for the smart thermal management of planar electronics
title_auth	A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics
abstract	Highlights Construction of a viscoelastic composite nacre with a ripple-like layered architecture through supramolecular interactions.Outstanding self-adhesion, self-healing and scrape-resistant mechanical and thermal properties.Utility as an integrated heat spreader and TIMs for “chameleon-like” thermal management of planar soft electronics. Abstract Cutting-edge heat spreaders for soft and planar electronics require not only high thermal conductivity and a certain degree of flexibility but also remarkable self-adhesion without thermal interface materials, elasticity, arbitrary elongation along with soft devices, and smart properties involving thermal self-healing, thermochromism and so on. Nacre-like composites with excellent in-plane heat dissipation are ideal as heat spreaders for thin and planar electronics. However, the intrinsically poor viscoelasticity, i.e., adhesion and elasticity, prevents them from simultaneous self-adhesion and arbitrary elongation along with current flexible devices as well as incurring high interfacial thermal impedance. In this paper, we propose a soft thermochromic composite (STC) membrane with a layered structure, considerable stretchability, high in-plane thermal conductivity (~ 30 W $ m^{−1} $ $ K^{−1} $), low thermal contact resistance (~ 12 $ mm^{2} $ K $ W^{−1} $, 4–5 times lower than that of silver paste), strong yet sustainable adhesion forces (~ 4607 J $ m^{−2} $, 2220 J $ m^{−2} $ greater than that of epoxy paste) and self-healing efficiency. As a self-adhesive heat spreader, it implements efficient cooling of various soft electronics with a temperature drop of 20 °C than the polyimide case. In addition to its self-healing function, the chameleon-like behavior of STC facilitates temperature monitoring by the naked eye, hence enabling smart thermal management. © The Author(s) 2023
abstractGer	Highlights Construction of a viscoelastic composite nacre with a ripple-like layered architecture through supramolecular interactions.Outstanding self-adhesion, self-healing and scrape-resistant mechanical and thermal properties.Utility as an integrated heat spreader and TIMs for “chameleon-like” thermal management of planar soft electronics. Abstract Cutting-edge heat spreaders for soft and planar electronics require not only high thermal conductivity and a certain degree of flexibility but also remarkable self-adhesion without thermal interface materials, elasticity, arbitrary elongation along with soft devices, and smart properties involving thermal self-healing, thermochromism and so on. Nacre-like composites with excellent in-plane heat dissipation are ideal as heat spreaders for thin and planar electronics. However, the intrinsically poor viscoelasticity, i.e., adhesion and elasticity, prevents them from simultaneous self-adhesion and arbitrary elongation along with current flexible devices as well as incurring high interfacial thermal impedance. In this paper, we propose a soft thermochromic composite (STC) membrane with a layered structure, considerable stretchability, high in-plane thermal conductivity (~ 30 W $ m^{−1} $ $ K^{−1} $), low thermal contact resistance (~ 12 $ mm^{2} $ K $ W^{−1} $, 4–5 times lower than that of silver paste), strong yet sustainable adhesion forces (~ 4607 J $ m^{−2} $, 2220 J $ m^{−2} $ greater than that of epoxy paste) and self-healing efficiency. As a self-adhesive heat spreader, it implements efficient cooling of various soft electronics with a temperature drop of 20 °C than the polyimide case. In addition to its self-healing function, the chameleon-like behavior of STC facilitates temperature monitoring by the naked eye, hence enabling smart thermal management. © The Author(s) 2023
abstract_unstemmed	Highlights Construction of a viscoelastic composite nacre with a ripple-like layered architecture through supramolecular interactions.Outstanding self-adhesion, self-healing and scrape-resistant mechanical and thermal properties.Utility as an integrated heat spreader and TIMs for “chameleon-like” thermal management of planar soft electronics. Abstract Cutting-edge heat spreaders for soft and planar electronics require not only high thermal conductivity and a certain degree of flexibility but also remarkable self-adhesion without thermal interface materials, elasticity, arbitrary elongation along with soft devices, and smart properties involving thermal self-healing, thermochromism and so on. Nacre-like composites with excellent in-plane heat dissipation are ideal as heat spreaders for thin and planar electronics. However, the intrinsically poor viscoelasticity, i.e., adhesion and elasticity, prevents them from simultaneous self-adhesion and arbitrary elongation along with current flexible devices as well as incurring high interfacial thermal impedance. In this paper, we propose a soft thermochromic composite (STC) membrane with a layered structure, considerable stretchability, high in-plane thermal conductivity (~ 30 W $ m^{−1} $ $ K^{−1} $), low thermal contact resistance (~ 12 $ mm^{2} $ K $ W^{−1} $, 4–5 times lower than that of silver paste), strong yet sustainable adhesion forces (~ 4607 J $ m^{−2} $, 2220 J $ m^{−2} $ greater than that of epoxy paste) and self-healing efficiency. As a self-adhesive heat spreader, it implements efficient cooling of various soft electronics with a temperature drop of 20 °C than the polyimide case. In addition to its self-healing function, the chameleon-like behavior of STC facilitates temperature monitoring by the naked eye, hence enabling smart thermal management. © The Author(s) 2023
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title_short	A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics
url	https://dx.doi.org/10.1007/s40820-023-01149-8
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author2	Yang, Tairan Wang, Zequn Sun, Xuhui An, Meng Liu, Dan Zhao, Changsheng Zhang, Gang Lei, Weiwei
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up_date	2024-07-04T01:35:05.327Z
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Nacre-like composites with excellent in-plane heat dissipation are ideal as heat spreaders for thin and planar electronics. However, the intrinsically poor viscoelasticity, i.e., adhesion and elasticity, prevents them from simultaneous self-adhesion and arbitrary elongation along with current flexible devices as well as incurring high interfacial thermal impedance. In this paper, we propose a soft thermochromic composite (STC) membrane with a layered structure, considerable stretchability, high in-plane thermal conductivity (~ 30 W $ m^{−1} $ $ K^{−1} $), low thermal contact resistance (~ 12 $ mm^{2} $ K $ W^{−1} $, 4–5 times lower than that of silver paste), strong yet sustainable adhesion forces (~ 4607 J $ m^{−2} $, 2220 J $ m^{−2} $ greater than that of epoxy paste) and self-healing efficiency. As a self-adhesive heat spreader, it implements efficient cooling of various soft electronics with a temperature drop of 20 °C than the polyimide case. 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A Thermochromic, Viscoelastic Nacre-like Nanocomposite for the Smart Thermal Management of Planar Electronics

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