Infrared camouflage based on the crystalline and amorphous GST multilayer films
Infrared camouflage technology has received considerable attention for escaping the tracking by an infrared detector. The phase-changing material Ge2Sb2Te5 (GST) has widely been utilized to design dynamic spectral regulation. Herein, we propose a planar selective emitter based on the GST with differ...
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| Veröffentlicht in: | Applied physics letters 2022-12, Vol.121 (25) |
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| container_issue | 25 |
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| container_title | Applied physics letters |
| container_volume | 121 |
| creator | Ren, Zhikun Wu, Zuoxu Wang, Jian Luo, Yi Liu, Yijie Mao, Jun Liu, Xingjun Zhang, Qian Cao, Feng |
| description | Infrared camouflage technology has received considerable attention for escaping the tracking by an infrared detector. The phase-changing material Ge2Sb2Te5 (GST) has widely been utilized to design dynamic spectral regulation. Herein, we propose a planar selective emitter based on the GST with different phases to simultaneously realize infrared camouflage and radiative heat dissipation. The fabricated emitter demonstrates a low emissivity of 32.6% inside the atmospheric windows and a high emissivity of 67.8% outside the atmospheric windows due to the formed quasi-optical cavity of the GST and the metal Ni layer in the structure. Moreover, it also has the potential to be used in different conditions by controlling the emission peak position. The facile process technique allows scalable production and large-scale deployment of the proposed emitter. |
| doi_str_mv | 10.1063/5.0134673 |
| format | Article |
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The phase-changing material Ge2Sb2Te5 (GST) has widely been utilized to design dynamic spectral regulation. Herein, we propose a planar selective emitter based on the GST with different phases to simultaneously realize infrared camouflage and radiative heat dissipation. The fabricated emitter demonstrates a low emissivity of 32.6% inside the atmospheric windows and a high emissivity of 67.8% outside the atmospheric windows due to the formed quasi-optical cavity of the GST and the metal Ni layer in the structure. Moreover, it also has the potential to be used in different conditions by controlling the emission peak position. The facile process technique allows scalable production and large-scale deployment of the proposed emitter.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/5.0134673</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Atmospheric windows ; Emissions control ; Emissivity ; Emitters ; Infrared detectors ; Infrared tracking ; Multilayers ; Spectral emittance</subject><ispartof>Applied physics letters, 2022-12, Vol.121 (25)</ispartof><rights>Author(s)</rights><rights>2022 Author(s). 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The phase-changing material Ge2Sb2Te5 (GST) has widely been utilized to design dynamic spectral regulation. Herein, we propose a planar selective emitter based on the GST with different phases to simultaneously realize infrared camouflage and radiative heat dissipation. The fabricated emitter demonstrates a low emissivity of 32.6% inside the atmospheric windows and a high emissivity of 67.8% outside the atmospheric windows due to the formed quasi-optical cavity of the GST and the metal Ni layer in the structure. Moreover, it also has the potential to be used in different conditions by controlling the emission peak position. 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| fulltext | fulltext |
| identifier | ISSN: 0003-6951 |
| ispartof | Applied physics letters, 2022-12, Vol.121 (25) |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_5_0134673 |
| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics Atmospheric windows Emissions control Emissivity Emitters Infrared detectors Infrared tracking Multilayers Spectral emittance |
| title | Infrared camouflage based on the crystalline and amorphous GST multilayer films |
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