Heat conduction tuning by wave nature of phonons

Maire, Jérémie; Anufriev, Roman; Yanagisawa, Ryoto; Ramière, Aymeric; Volz, Sébastian; Nomura, Masahiro

doi:10.1126/sciadv.1700027

Cited by 178 publications

(190 citation statements)

References 53 publications

Supporting

Mentioning

185

Contrasting

Order By: Relevance

“…Recently, the influence of coherent and incoherent scattering mechanisms on thermal conductivity of 2D PnCs is actively investigated in the field of nanoscale heat transport. [12][13][14][15][16][17][18] Previous Boltzmann transport equation (BTE) calculations and Monte Carlo simulations considering the incoherent phonon transport largely overestimated the thermal conductivity of PnCs, compared to the experimentally measured results. 3,4 Some groups ascribed the ultra-low-thermal conductivity of PnCs to coherent phonon interaction, 1,5 which is analogous to that has been found in the superlattice structures.…”

Section: Introductionmentioning

confidence: 99%

“…It has been argued that coherent phonons affect thermal transport in periodic nanoporous films, 1,[3][4][5][12][13][14] and the range of occurrence of such phonon interference is a long-lasting question. [13][14][15][16] In general, for coherent phonon modes associated with the secondary periodicity of the pores to affect thermal transport, the feature size of PnCs should be on a length scale comparable to wavelengths of the phonons that contribute to thermal transport. 13 Zen et al experimentally demonstrated the impact of the coherent scattering on thermal conduction of 2D PnCs at subKelvin temperature, where phonon wavelengths were longer than the characteristic size of the structure.…”

Section: Introductionmentioning

confidence: 99%

“…13 Zen et al experimentally demonstrated the impact of the coherent scattering on thermal conduction of 2D PnCs at subKelvin temperature, where phonon wavelengths were longer than the characteristic size of the structure. 17 Maire et al demonstrated that thermal conductivity was reduced in Si PnCs with an ordered array of holes as compared to that with randomly positioned holes below 10 K due to the presence of phonon interference, showed the temperature dependence of coherent effect and observed the transition from coherent to incoherent heat transport above 10 K. 15 Furthermore, Wagner et al fabricated PnCs with ordered and disordered lattices with equal filling fraction in free-standing Si membranes, and they found that the thermal conductivity of disordered PnCs was the same as that of ordered PnCs above room temperature. 16 Using ultrafast pump-probe spectrum and Raman thermometry, they found that even in ordered PnCs, the phonon coherence only existed in the range of less than 0.4 THz at room temperature even for a hole wall roughness value as low as 1 nm.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ultra-low thermal conductivity of two-dimensional phononic crystals in the incoherent regime

et al. 2018

View full text Add to dashboard Cite

Two-dimensional silicon phononic crystals have attracted extensive research interest for thermoelectric applications due to their reproducible low thermal conductivity and sufficiently good electrical properties. For thermoelectric devices in high-temperature environment, the coherent phonon interference is strongly suppressed; therefore phonon transport in the incoherent regime is critically important for manipulating their thermal conductivity. On the basis of perturbation theory, we present herein a novel phonon scattering process from the perspective of bond order imperfections in the surface skin of nanostructures. We incorporate this strongly frequency-dependent scattering rate into the phonon Boltzmann transport equation and reproduce the ultra low thermal conductivity of holey silicon nanostructures. We reveal that the remarkable reduction of thermal conductivity originates not only from the impediment of low-frequency phonons by normal boundary scattering, but also from the severe suppression of high-frequency phonons by surface bond order imperfections scattering. Our theory not only reveals the role of the holey surface on the phonon transport, but also provide a computation tool for thermal conductivity modification in nanostructures through surface engineering.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ultra-low thermal conductivity of two-dimensional phononic crystals in the incoherent regime

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The concept of PnCs offers thermal diodes, cloaks, guides, insulators and other devices that can improve both heat dissipation and thermal insulation in microelectronics [2–4]. Moreover, PnCs can reduce the thermal conductivity [5,6]. Thus, PnCs can enhance the thermoelectric efficiency of poor thermoelectric materials, such as silicon [7–9], and be used in energy harvesting applications [10,11] along with other nanostructured [11–14] and hierarchical [15,16] materials.…”

Section: Introductionmentioning

confidence: 99%

Phonon and heat transport control using pillar-based phononic crystals

Anufriev

Nomura

2018

Science and Technology of Advanced Materials

Self Cite

View full text Add to dashboard Cite

Phononic crystals have been studied for the past decades as a tool to control the propagation of acoustic and mechanical waves. Recently, researchers proposed that nanosized phononic crystals can also control heat conduction and improve the thermoelectric efficiency of silicon by phonon dispersion engineering. In this review, we focus on recent theoretical and experimental advances in phonon and thermal transport engineering using pillar-based phononic crystals. First, we explain the principles of the phonon dispersion engineering and summarize early proof-of-concept experiments. Next, we review recent simulations of thermal transport in pillar-based phononic crystals and seek to uncover the origin of the observed reduction in the thermal conductivity. Finally, we discuss first experimental attempts to observe the predicted thermal conductivity reduction and suggest the directions for future research.

show abstract

“…Therefore, the periodicity itself is not expected to impact the thermal transport, and the reduction of the in‐plane thermal conductivity is mainly directed by the diffusive scattering of phonons at the boundaries of the 2D PnC. At low temperatures, however, the wavelength of the phonons is large enough so that their spatial dispersion is strongly affected by characteristic sizes of the order of the micrometer and sub‐micrometer …”

Section: Introductionmentioning

confidence: 99%

2D Phononic Crystals: Progress and Prospects in Hypersound and Thermal Transport Engineering

Sledzinska

Graczykowski

Maire

et al. 2019

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

The central concept in phononics is the tuning of the phonon dispersion relation, or phonon engineering, which provides a means of controlling related properties such as group velocity or phonon interactions and, therefore, phonon propagation, in a wide range of frequencies depending on the geometries and sizes of the materials. Phononics exploits the present state of the art in nanofabrication to tailor dispersion relations in the range of GHz for the control of elastic waves/phonons propagation with applications toward new information technology concepts with phonons as state variable. Moreover, phonons provide an adaptable approach for supporting a coherent coupling between different state variables, and the development of nanoscale optomechanical systems during the last decade attests this prospect. The most extended approach to manipulate the phonon dispersion relation is introducing an artificial periodic modulation of the elastic properties, which is referred to as phononic crystal (PnC). Herein, the focus is on the recent experimental achievements in the fabrication and application of 2D PnCs enabling the modification of the dispersion relation of surface and membrane modes, and presenting phononic bandgaps, waveguiding, and confinement in the hypersonic regime. Furthermore, these artificial materials offer the potential of modifying and controlling the heat flow to enable new schemes in thermal management.

show abstract

Heat conduction tuning by wave nature of phonons

Abstract: Perfectly periodic structures modify the transport properties of heat carriers by interference effect and hinder heat transport.

Cited by 178 publications

References 53 publications

Ultra-low thermal conductivity of two-dimensional phononic crystals in the incoherent regime

Ultra-low thermal conductivity of two-dimensional phononic crystals in the incoherent regime

Phonon and heat transport control using pillar-based phononic crystals

2D Phononic Crystals: Progress and Prospects in Hypersound and Thermal Transport Engineering

Contact Info

Product

Resources

About