Enhanced thermal management in electronic devices through control-oriented structures

Cheng, Shujian; Guo, Xiaoxiao; Cai, Weiwei; Zhang, Yufeng; Zhang, Xue-ao

doi:10.1039/d4ta00520a

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta00520a

|View full text |Cite

Enhanced thermal management in electronic devices through control-oriented structures

Shujian Cheng,

Xiaoxiao Guo,

Weiwei Cai

et al.

Abstract: As electronic devices continue to shrink in size while increasing in power, the generation of significant waste heat has become a major obstacle to further progress. Effective thermal management is...

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 7 publications

References 123 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Rectifiable Conductive Thermal Diodes Enabling Thermal Circuits with Selectable Operations for Thermal Logic Applications

Li,

Zhao,

Jiang

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

Thermal logic paves the way to replace electric logic in scenarios where electronic signals are susceptible to interference or traditional electronics cannot be used, however, is still considered a theoretical and numerical stage. Emerging thermal metalmaterials (TMMs) have the potential to enhance thermal information processes. Compared to TMMs with single‐and‐fixed heat transfer capabilities, rectifiable‐TMMs enable thermal circuits to perform selectable operations, but they are also limited by low operating temperatures and narrow temperature biases. Here, macro‐ and experimental thermal diodes with tree‐like eutectic gallium‐indium/printed polylactic‐acid (EGaIn/PPLA) interface, are demonstrated to be capable of extending asymmetric heat transfer difference to 5.81 times in ambient operation, compared with basic EGaIn/PPLA interface with an input temperature bias of 63.7 °C. Given this, basic thermal gates can be constructed through the incorporation of resistors and a pair of diodes working in the same or opposite directions, with the propagation delay time td within 18 min. Compound logic gates can be cascaded by basic gates in the same way as composed Boolean functions, with td within 4 min. Such thermal circuits prove to perform reliably under dynamic ambient conditions, advancing the engineering of devices designed to manipulate thermal energy and process abundant thermal information.

show abstract

Rectifiable Conductive Thermal Diodes Enabling Thermal Circuits with Selectable Operations for Thermal Logic Applications

Li,

Zhao,

Jiang

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

Ultralow Thermal Conductivity in Vacancy‐Ordered Halide Perovskite Cs₃Bi₂Br₉ with Strong Anharmonicity and Wave‐Like Tunneling of Low‐Energy Phonons

Chen,

Zhou,

Luo

et al. 2024

Small

View full text Add to dashboard Cite

Halide perovskites are of great interest due to their exceptional optical and optoelectronic properties. However, thermal conductivity of many halide perovskites remains unexplored. In this study, an ultralow lattice thermal conductivity κL (0.24 W m−1 K−1 at 300 K) is reported and its weak temperature dependence (≈T−0.27) in an all‐inorganic vacancy‐ordered halide perovskite, Cs3Bi2Br9. The intrinsically ultralow κL can be attributed to the soft low‐lying phonon modes with strong anharmonicity, which have been revealed by combining experimental heat capacity and Raman spectroscopy measurements, and first‐principles calculations. It is shown that the highly anharmonic phonons originate from the Bi 6s2 lone pair expression with antibonding states of Bi 6s and Br 4p orbitals driven by the dynamic BiBr6 octahedral distortion. Theoretical calculations reveal that these low‐energy phonons are mostly contributed by large Br motions induced dynamic distortion of BiBr6 octahedra and large Cs rattling motions, verified by the synchrotron X‐ray pair distribution function analysis. In addition, the weak temperature dependence of κL can be traced to the wave‐like tunneling of phonons, induced by the low‐lying phonon modes. This work reveals the strong anharmonicity and wave‐like tunneling of low‐energy phonons for designing efficient vacancy‐ordered halide perovskites with intrinsically low κL.

show abstract

A multifaceted heat-switching nanofiller: Design of heat dissipation–insulation switching materials above a critical temperature

Song,

Jeong,

Park

et al. 2024

Chemical Engineering Journal

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Enhanced thermal management in electronic devices through control-oriented structures

Abstract: As electronic devices continue to shrink in size while increasing in power, the generation of significant waste heat has become a major obstacle to further progress. Effective thermal management is...

Cited by 7 publications

References 123 publications

Rectifiable Conductive Thermal Diodes Enabling Thermal Circuits with Selectable Operations for Thermal Logic Applications

Rectifiable Conductive Thermal Diodes Enabling Thermal Circuits with Selectable Operations for Thermal Logic Applications

Ultralow Thermal Conductivity in Vacancy‐Ordered Halide Perovskite Cs₃Bi₂Br₉ with Strong Anharmonicity and Wave‐Like Tunneling of Low‐Energy Phonons

A multifaceted heat-switching nanofiller: Design of heat dissipation–insulation switching materials above a critical temperature

Contact Info

Product

Resources

About

Enhanced thermal management in electronic devices through control-oriented structures

Abstract: As electronic devices continue to shrink in size while increasing in power, the generation of significant waste heat has become a major obstacle to further progress. Effective thermal management is...

Cited by 7 publications

References 123 publications

Rectifiable Conductive Thermal Diodes Enabling Thermal Circuits with Selectable Operations for Thermal Logic Applications

Rectifiable Conductive Thermal Diodes Enabling Thermal Circuits with Selectable Operations for Thermal Logic Applications

Ultralow Thermal Conductivity in Vacancy‐Ordered Halide Perovskite Cs3Bi2Br9 with Strong Anharmonicity and Wave‐Like Tunneling of Low‐Energy Phonons

A multifaceted heat-switching nanofiller: Design of heat dissipation–insulation switching materials above a critical temperature

Contact Info

Product

Resources

About

Ultralow Thermal Conductivity in Vacancy‐Ordered Halide Perovskite Cs₃Bi₂Br₉ with Strong Anharmonicity and Wave‐Like Tunneling of Low‐Energy Phonons