{"id":57264,"date":"2026-03-23T10:01:13","date_gmt":"2026-03-23T09:01:13","guid":{"rendered":"https:\/\/www.nae.fr\/2026\/03\/23\/near-unity-broadband-photonic-metamaterial-absorber-for-thermoelectric-energy-harvesting-in-space\/"},"modified":"2026-03-23T10:01:13","modified_gmt":"2026-03-23T09:01:13","slug":"near-unity-broadband-photonic-metamaterial-absorber-for-thermoelectric-energy-harvesting-in-space","status":"publish","type":"post","link":"https:\/\/www.nae.fr\/en\/2026\/03\/23\/near-unity-broadband-photonic-metamaterial-absorber-for-thermoelectric-energy-harvesting-in-space\/","title":{"rendered":"Near-unity broadband photonic metamaterial absorber for thermoelectric energy harvesting in Space"},"content":{"rendered":"
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\n\nSpaceborne power systems must operate reliably for decades with minimal maintenance. Thermoelectric generators (TEGs) are intrinsically suited to long-lived missions, but their output remains constrained by available thermal gradients and the limitations of bulk thermoelectric materials. Here, we introduce a photonic metamaterial (PtMM) coating concept that amplifies the thermal gradient available to a TEG by converting incident AM0 solar irradiance into strongly localised photothermal energy on the TEG hot side. We design, optimise, and numerically characterise two metal-insulator-metal PtMM geometries – nanocross (NC-PtMM) and nanosquare (NS-PtMM) – using standard thin-film materials.\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/blockquote>\n
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\n\nPour en savoir plus : Near-unity broadband photonic metamaterial absorber for thermoelectric energy harvesting in Space<\/a>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Spaceborne power systems must operate reliably for decades with minimal maintenance. Thermoelectric generators (TEGs) are intrinsically suited to long-lived missions, but their output remains constrained by available thermal gradients and the limitations of bulk thermoelectric materials. Here, we introduce a photonic metamaterial (PtMM) coating concept that amplifies the thermal gradient available to a TEG by […]<\/p>\n","protected":false},"author":1,"featured_media":56727,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24,16],"tags":[35],"class_list":["post-57264","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualite-spatial","category-rti","tag-actualites"],"acf":[],"yoast_head":"\nNear-unity broadband photonic metamaterial absorber for thermoelectric energy harvesting in Space - NAE<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.nae.fr\/en\/2026\/03\/23\/near-unity-broadband-photonic-metamaterial-absorber-for-thermoelectric-energy-harvesting-in-space\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Near-unity broadband photonic metamaterial absorber for thermoelectric energy harvesting in Space - NAE\" \/>\n<meta property=\"og:description\" content=\"Spaceborne power systems must operate reliably for decades with minimal maintenance. Thermoelectric generators (TEGs) are intrinsically suited to long-lived missions, but their output remains constrained by available thermal gradients and the limitations of bulk thermoelectric materials. 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