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<p>Effective thermal management at variable and extreme temperatures face limitations for the development of novel energy and aerospace applications. Plasmonic approaches, shown to be capable of tailoring black-body emission, could be effective if materials with high-temperature and tunable plasmonic resonance were available. Here, we report a synergy between experimental and theoretical results proving that many high-entropy transition metal carbides, consisting of four or more metals at equal molar ratio, have plasmonic resonance at room, high (<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="44210_2025_66_Article_IEq1.gif" Format="GIF" Height="14" Rendition="HTML" Resolution="72" Type="Linedraw" Width="72" /> </InlineMediaObject> <EquationSource Format="TEX">\(&gt;{1000}\,^{\circ }\hbox {C}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mo>&gt;</mo> <mn>1000</mn> <mmultiscripts> <mspace width="0.166667em" /> <mrow /> <mo>∘</mo> </mmultiscripts> <mtext>C</mtext> </mrow> </math></EquationSource> </InlineEquation>) and variable temperatures. We also found that these high-entropy carbides can be tuned and show considerable plasmonic thermal cycling stability. This paradigm-shift approach could prove quite advantageous as it facilitates the accelerated rational discovery and manufacturability of optically highly optimized high-entropy carbides with ad hoc properties.</p>

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Variable-Temperature Plasmonic High-Entropy Carbides

  • 期刊论文

  • 发表日期：

    2025年7月21日

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  • Simon Divilov,
  • Sean D. Griesemer,
  • Robert C. Koennecker,
  • Michael J. Ammendola,
  • Adam C. Zettel,
  • Hagen Eckert,
  • Jeffrey R. Shallenberger,
  • Xiomara Campilongo,
  • William G. Fahrenholtz,
  • Arrigo Calzolari,
  • Douglas E. Wolfe,
  • Stefano Curtarolo

摘要

Effective thermal management at variable and extreme temperatures face limitations for the development of novel energy and aerospace applications. Plasmonic approaches, shown to be capable of tailoring black-body emission, could be effective if materials with high-temperature and tunable plasmonic resonance were available. Here, we report a synergy between experimental and theoretical results proving that many high-entropy transition metal carbides, consisting of four or more metals at equal molar ratio, have plasmonic resonance at room, high ( \(>{1000}\,^{\circ }\hbox {C}\) > 1000 ∘ C ) and variable temperatures. We also found that these high-entropy carbides can be tuned and show considerable plasmonic thermal cycling stability. This paradigm-shift approach could prove quite advantageous as it facilitates the accelerated rational discovery and manufacturability of optically highly optimized high-entropy carbides with ad hoc properties.