Switchable Cavitation: Switchable Cavitation in Silicone Coatings for Energy‐Saving Cooling and Heating (Adv. Mater. 29/2020)

Zhao, Huaixia; Sun, Qiangqiang; Zhou, Ji Ping; Deng, Xu; Cui, Jiaxi

doi:10.1002/adma.202070215

Cited by 41 publications

(46 citation statements)

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“…Figure 5a–c shows the projected crystal structures, high‐resolution spherical aberration corrected high‐angle annular dark‐field scanning transmission electron microscopy (Cs‐HAADF‐STEM) images with multislice simulations, and corresponding selected area electron diffraction (SAED) patterns of SnSe viewed along the a ‐, b ‐ and c ‐axes,206 respectively. SnSe possesses a typical double‐layered structure,10 similar to SnS and black phosphorus 207,208. In a unit cell of SnSe, there are eight atoms joined with strong hetero‐polar bonds, consisting of two planes of zigzag‐like chain 209,210.…”

Section: Fundamentalmentioning

confidence: 99%

“…Among the state‐of‐the‐art thermoelectric materials, tin selenide (SnSe) is one of the most promising candidates to apply to thermoelectric devices due to its environmentally friendly feature, high cost‐effectiveness, and outstanding thermoelectric performance derived from its appropriate bandgap of ≈0.9 eV and intrinsic low κ l 9,10 . Figure a shows the development timeline for all SnSe‐based bulk thermoelectric materials,11–124 from which a record high ZT of ≈2.8 at 773 K was found in the n‐type SnSe single crystal,11 derived from its ultralow κ l of ≈0.18 W m −1 K −1 and high S 2 σ of ≈9.0 µW cm −1 K −2 at this temperature 125.…”

Section: Introductionmentioning

confidence: 97%

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High‐Performance Thermoelectric SnSe: Aqueous Synthesis, Innovations, and Challenges

2020

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Tin selenide (SnSe) is one of the most promising candidates to realize environmentally friendly, cost‐effective, and high‐performance thermoelectrics, derived from its outstanding electrical transport properties by appropriate bandgaps and intrinsic low lattice thermal conductivity from its anharmonic layered structure. Advanced aqueous synthesis possesses various unique advantages including convenient morphology control, exceptional high doping solubility, and distinctive vacancy engineering. Considering that there is an urgent demand for a comprehensive survey on the aqueous synthesis technique applied to thermoelectric SnSe, herein, a thorough overview of aqueous synthesis, characterization, and thermoelectric performance in SnSe is provided. New insights into the aqueous synthesis‐based strategies for improving the performance are provided, including vacancy synergy, crystallization design, solubility breakthrough, and local lattice imperfection engineering, and an attempt to build the inherent links between the aqueous synthesis‐induced structural characteristics and the excellent thermoelectric performance is presented. Furthermore, the significant advantages and potentials of an aqueous synthesis route for fabricating SnSe‐based 2D thermoelectric generators, including nanorods, nanobelts, and nanosheets, are also discussed. Finally, the controversy, strategy, and outlook toward future enhancement of SnSe‐based thermoelectric materials are also provided. This Review guides the design of thermoelectric SnSe with high performance and provides new perspectives as a reference for other thermoelectric systems.

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Section: Fundamentalmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

High‐Performance Thermoelectric SnSe: Aqueous Synthesis, Innovations, and Challenges

2020

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“…For a detailed survey of TE applications of 2D materials, readers can refer to refs. . Our review takes a perspective from the various thermally related issues encountered in FETs based on 2D semiconductors, such as thermal management in the active device regions and interfacial thermal resistance across various contacts and interfaces.…”

Section: Introductionmentioning

confidence: 99%

Thermal Transport in 2D Semiconductors—Considerations for Device Applications

Zhao

Cai

Zhang

et al. 2019

Adv Funct Materials

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The discovery of graphene has stimulated the search for and investigations into other 2D materials because of the rich physics and unusual properties exhibited by many of these layered materials. Transition metal dichalcogenides (TMDs), black phosphorus, and SnSe among many others, have emerged to show highly tunable physical and chemical properties that can be exploited in a whole host of promising applications. Alongside the novel electronic and optical properties of such 2D semiconductors, their thermal transport properties have also attracted substantial attention. Here, a comprehensive review of the unique thermal transport properties of various emerging 2D semiconductors is provided, including TMDs, black‐ and blue‐phosphorene among others, and the different mechanisms underlying their thermal conductivity characteristics. The focus is placed on the phonon‐related phenomena and issues encountered in various applications based on 2D semiconductor materials and their heterostructures, including thermoelectric power generation and electron–phonon coupling effect in photoelectric and thermal transistor devices. A thorough understanding of phonon transport physics in 2D semiconductor materials to inform thermal management of next‐generation nanoelectronic devices is comprehensively presented along with strategies for controlling heat energy transport and conversion.

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“…Nonmetallic/flexible cooling structures are strongly demanded for thermal management of wearable and wireless optoelectronics. Although various approaches exhibit the design of nonmetallic radiative coolers (Table S2, Supporting Information), their designs were optimized for paintable coolers, [ 39 ] radiative cooling wood, [ 40 ] cooling/heating mode conversion, [ 41,42 ] and colored coolers. [ 43 ] Fortunately, polymer–air composite radiative coolers have provided insight into user comfort from wearable PPG sensors.…”

Section: Introductionmentioning

confidence: 99%

Outdoor‐Useable, Wireless/Battery‐Free Patch‐Type Tissue Oximeter with Radiative Cooling

Kang

Lee

et al. 2021

Advanced Science

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For wearable electronics/optoelectronics, thermal management should be provided for accurate signal acquisition as well as thermal comfort. However, outdoor solar energy gain has restricted the efficiency of some wearable devices like oximeters. Herein, wireless/battery-free and thermally regulated patch-type tissue oximeter (PTO) with radiative cooling structures are presented, which can measure tissue oxygenation under sunlight in reliable manner and will benefit athlete training. To maximize the radiative cooling performance, a nano/microvoids polymer (NMVP) is introduced by combining two perforated polymers to both reduce sunlight absorption and maximize thermal radiation. The optimized NMVP exhibits sub-ambient cooling of 6°C in daytime under various conditions such as scattered/overcast clouds, high humidity, and clear weather. The NMVP-integrated PTO enables maintaining temperature within ≈1°C on the skin under sunlight relative to indoor measurement, whereas the normally used, black encapsulated PTO shows over 40°C owing to solar absorption. The heated PTO exhibits an inaccurate tissue oxygen saturation (StO 2 ) value of ≈67% compared with StO 2 in a normal state (i.e., ≈80%). However, the thermally protected PTO presents reliable StO 2 of ≈80%. This successful demonstration provides a feasible strategy of thermal management in wearable devices for outdoor applications.

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Switchable Cavitation: Switchable Cavitation in Silicone Coatings for Energy‐Saving Cooling and Heating (Adv. Mater. 29/2020)

Cited by 41 publications

References 0 publications

High‐Performance Thermoelectric SnSe: Aqueous Synthesis, Innovations, and Challenges

High‐Performance Thermoelectric SnSe: Aqueous Synthesis, Innovations, and Challenges

Thermal Transport in 2D Semiconductors—Considerations for Device Applications

Outdoor‐Useable, Wireless/Battery‐Free Patch‐Type Tissue Oximeter with Radiative Cooling

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