Nonmetallic Broadband Visible-Light Absorbers With Polarization and Incident Angle Insensitivity
We have proposed and theoretically analyzed nonmetallic broadband visible-light absorbers based on alternating SiO 2 /InAs thin films on SiO 2 substrate. Compared with the conventional absorbers, the proposed SiO 2 /InAs structure can achieve excellent absorption within a smaller volume. The average...
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| Veröffentlicht in: | IEEE photonics journal 2020-12, Vol.12 (6), p.1-7 |
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| creator | Yu, Yue Yu, Zejie Sun, Xiankai |
| description | We have proposed and theoretically analyzed nonmetallic broadband visible-light absorbers based on alternating SiO 2 /InAs thin films on SiO 2 substrate. Compared with the conventional absorbers, the proposed SiO 2 /InAs structure can achieve excellent absorption within a smaller volume. The average absorption can exceed 97% in the wavelength range of 300-850 nm. With a two-dimensional InAs grating atop, the device can achieve the average absorption of >92% with insensitivity to light polarization and incident angles. Due to the advantages of broadband and near-unity absorption, polarization and incident angle insensitivity, controllable and mature fabrication processes, the proposed visible-light absorbers will find wide applications in solar energy harvesting, thermal emission, and water splitting. |
| doi_str_mv | 10.1109/JPHOT.2020.3029213 |
| format | Article |
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Compared with the conventional absorbers, the proposed SiO 2 /InAs structure can achieve excellent absorption within a smaller volume. The average absorption can exceed 97% in the wavelength range of 300-850 nm. With a two-dimensional InAs grating atop, the device can achieve the average absorption of >92% with insensitivity to light polarization and incident angles. Due to the advantages of broadband and near-unity absorption, polarization and incident angle insensitivity, controllable and mature fabrication processes, the proposed visible-light absorbers will find wide applications in solar energy harvesting, thermal emission, and water splitting.</description><identifier>ISSN: 1943-0655</identifier><identifier>EISSN: 1943-0655</identifier><identifier>EISSN: 1943-0647</identifier><identifier>DOI: 10.1109/JPHOT.2020.3029213</identifier><identifier>CODEN: PJHOC3</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>Absorbers ; Absorption ; Broadband ; Broadband communication ; Energy harvesting ; Fabrication ; Gratings ; III–V semiconductors ; metagratings ; Optimization ; perfect optical absorption ; Polarization ; Reflection ; Silicon dioxide ; Solar energy ; Substrates ; Thermal emission ; Thin films ; Visible-light absorbers ; Water splitting</subject><ispartof>IEEE photonics journal, 2020-12, Vol.12 (6), p.1-7</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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Compared with the conventional absorbers, the proposed SiO 2 /InAs structure can achieve excellent absorption within a smaller volume. The average absorption can exceed 97% in the wavelength range of 300-850 nm. With a two-dimensional InAs grating atop, the device can achieve the average absorption of >92% with insensitivity to light polarization and incident angles. Due to the advantages of broadband and near-unity absorption, polarization and incident angle insensitivity, controllable and mature fabrication processes, the proposed visible-light absorbers will find wide applications in solar energy harvesting, thermal emission, and water splitting.</description><subject>Absorbers</subject><subject>Absorption</subject><subject>Broadband</subject><subject>Broadband communication</subject><subject>Energy harvesting</subject><subject>Fabrication</subject><subject>Gratings</subject><subject>III–V semiconductors</subject><subject>metagratings</subject><subject>Optimization</subject><subject>perfect optical absorption</subject><subject>Polarization</subject><subject>Reflection</subject><subject>Silicon dioxide</subject><subject>Solar energy</subject><subject>Substrates</subject><subject>Thermal emission</subject><subject>Thin films</subject><subject>Visible-light absorbers</subject><subject>Water splitting</subject><issn>1943-0655</issn><issn>1943-0655</issn><issn>1943-0647</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNpNkctOHDEQRVuISLzyA7BpiXUPfru9BARh0AhYkGTp-FE9eNS0wTZI5OvxMAixqirXubcs3aY5xGiGMVIn13dXt_czggiaUUQUwXSr2cWK0Q4Jzre_9TvNXs4rhITCXO02_27i9AjFjGNw7VmKxlsz-fZPyMGO0C3C8qG0pzbHZCHl9m8oD-1dHE0K_00JcWrX9HxywcNUwWk5Qh0zTDmU8BrK20HzYzBjhp-fdb_5fXlxf37VLW5_zc9PF51jiJeuB86wAqk8kpRxZakFQryyBqj00pHBW4ENccJjY8ANljPb8155VQGh6H4z3_j6aFb6KYVHk950NEF_PMS01CaV4EbQEg2SgbOKsp4JIhR3jjDeI4QHKwZZvY43Xk8pPr9ALnoVX9JUv68rJ5XkVPFKkQ3lUsw5wfB1FSO9TkV_pKLXqejPVKroaCMKAPAlqCshEKfv5OWJMg</recordid><startdate>20201201</startdate><enddate>20201201</enddate><creator>Yu, Yue</creator><creator>Yu, Zejie</creator><creator>Sun, Xiankai</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Compared with the conventional absorbers, the proposed SiO 2 /InAs structure can achieve excellent absorption within a smaller volume. The average absorption can exceed 97% in the wavelength range of 300-850 nm. With a two-dimensional InAs grating atop, the device can achieve the average absorption of >92% with insensitivity to light polarization and incident angles. Due to the advantages of broadband and near-unity absorption, polarization and incident angle insensitivity, controllable and mature fabrication processes, the proposed visible-light absorbers will find wide applications in solar energy harvesting, thermal emission, and water splitting.</abstract><cop>Piscataway</cop><pub>IEEE</pub><doi>10.1109/JPHOT.2020.3029213</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-9137-0298</orcidid><oa>free_for_read</oa></addata></record> |
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| source | IEEE Open Access Journals; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Absorbers Absorption Broadband Broadband communication Energy harvesting Fabrication Gratings III–V semiconductors metagratings Optimization perfect optical absorption Polarization Reflection Silicon dioxide Solar energy Substrates Thermal emission Thin films Visible-light absorbers Water splitting |
| title | Nonmetallic Broadband Visible-Light Absorbers With Polarization and Incident Angle Insensitivity |
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