{"id":25815,"date":"2016-05-17T18:17:26","date_gmt":"2016-05-18T01:17:26","guid":{"rendered":"http:\/\/lifeboat.com\/blog\/2016\/05\/magnetic-hyperbolic-optical-metamaterial-could-advance-thermophotovoltaics"},"modified":"2017-04-24T20:49:05","modified_gmt":"2017-04-25T03:49:05","slug":"magnetic-hyperbolic-optical-metamaterial-could-advance-thermophotovoltaics","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2016\/05\/magnetic-hyperbolic-optical-metamaterial-could-advance-thermophotovoltaics","title":{"rendered":"Magnetic Hyperbolic Optical Metamaterial Could Advance Thermophotovoltaics"},"content":{"rendered":"

<\/a><\/p>\n

Improving energy efficiencies \u2014 nice.<\/p>\n

\n

The remarkable properties researchers at the Australian National University<\/a> (ARC Centre of Excellence CUDOS<\/a>) and the University of California Berkeley<\/a> have discovered in a new nano-metamaterial could lead to highly efficient thermophotovoltaic cells. The new artificial material glows in an unusual way when headed.<\/p>\n

As shown in the image, the metamaterial comprises 20 stacked alternating layers of 30-nm-thick gold and 45-nm-thick magnesium fluoride dielectric, perforated with 260 \u00d7 530 nm holes that are arranged into a 750 \u00d7 750 nm square lattice.<\/p>\n

Thermophotovoltaics typically use a heated object as a source of radiation that is then converted to electricity by a photovoltaic cell. The caveat is that heated object emits light in all directions and over a broad spectral region, which reduces the efficiency of the light-to-electricity conversion. However, \u201cThe demonstrated metamaterial emits thermal radiation predominantly in particular directions and [within] a particular spectral region, which could make the conversion more efficient,\u201d says Dr Sergey Kruk<\/a> at the Nonlinear Physics Centre in the ANU Research School of Physics and Engineering.<\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Improving energy efficiencies \u2014 nice. The remarkable properties researchers at the Australian National University (ARC Centre of Excellence CUDOS) and the University of California Berkeley have discovered in a new nano-metamaterial could lead to highly efficient thermophotovoltaic cells. The new artificial material glows in an unusual way when headed. As shown in the image, the [\u2026]<\/p>\n","protected":false},"author":395,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1497,4,219],"tags":[],"class_list":["post-25815","post","type-post","status-publish","format-standard","hentry","category-energy","category-nanotechnology","category-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/25815","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/395"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=25815"}],"version-history":[{"count":2,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/25815\/revisions"}],"predecessor-version":[{"id":50467,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/25815\/revisions\/50467"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=25815"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=25815"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=25815"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}