Improvement of the thermal stability of Nb:TiO2−x samples for uncooled infrared detectors
In order to reduce the sun-burn effect in a sample of the bolometric material Nb:TiO2−x, oxygen annealing was carried out. This effect can be examined by comparing thermal stability test results between the as-deposited and oxygen-atmosphere-annealed samples under high-temperature exposure condition...
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| Veröffentlicht in: | Journal of physics. D, Applied physics Applied physics, 2018-01, Vol.51 (2) |
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| container_title | Journal of physics. D, Applied physics |
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| creator | Reddy, Y Ashok Kumar Kang, In-Ku Shin, Young Bong Lee, Hee Chul |
| description | In order to reduce the sun-burn effect in a sample of the bolometric material Nb:TiO2−x, oxygen annealing was carried out. This effect can be examined by comparing thermal stability test results between the as-deposited and oxygen-atmosphere-annealed samples under high-temperature exposure conditions. Structural studies confirm the presence of amorphous and rutile phases in the as-deposited and annealed samples, respectively. Composition studies reveal the offset of oxygen vacancies in the Nb:TiO2−x samples through oxygen-atmosphere annealing. The oxygen atoms were diffused and seemed to occupy the vacant sites in the annealed samples. As a result, the annealed samples show better thermal stability performance than the as-deposited samples. The universal bolometric parameter (β) values were slightly decreased in the oxygen-annealed Nb:TiO2−x samples. Although bolometric performance was slightly decreased in the oxygen-annealed samples, high thermal stability would be the most essential factor in the case of special applications, such as the military and space industries. Finally, these results will be very useful for reducing the sun-burn effect in infrared detectors. |
| doi_str_mv | 10.1088/1361-6463/aa9b60 |
| format | Article |
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This effect can be examined by comparing thermal stability test results between the as-deposited and oxygen-atmosphere-annealed samples under high-temperature exposure conditions. Structural studies confirm the presence of amorphous and rutile phases in the as-deposited and annealed samples, respectively. Composition studies reveal the offset of oxygen vacancies in the Nb:TiO2−x samples through oxygen-atmosphere annealing. The oxygen atoms were diffused and seemed to occupy the vacant sites in the annealed samples. As a result, the annealed samples show better thermal stability performance than the as-deposited samples. The universal bolometric parameter (β) values were slightly decreased in the oxygen-annealed Nb:TiO2−x samples. Although bolometric performance was slightly decreased in the oxygen-annealed samples, high thermal stability would be the most essential factor in the case of special applications, such as the military and space industries. Finally, these results will be very useful for reducing the sun-burn effect in infrared detectors.</description><identifier>ISSN: 0022-3727</identifier><identifier>EISSN: 1361-6463</identifier><identifier>DOI: 10.1088/1361-6463/aa9b60</identifier><identifier>CODEN: JPAPBE</identifier><language>eng</language><publisher>IOP Publishing</publisher><subject>annealing ; bolometric properties ; Nb:TiO ; oxygen diffusion ; thermal stability</subject><ispartof>Journal of physics. 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Phys</addtitle><description>In order to reduce the sun-burn effect in a sample of the bolometric material Nb:TiO2−x, oxygen annealing was carried out. This effect can be examined by comparing thermal stability test results between the as-deposited and oxygen-atmosphere-annealed samples under high-temperature exposure conditions. Structural studies confirm the presence of amorphous and rutile phases in the as-deposited and annealed samples, respectively. Composition studies reveal the offset of oxygen vacancies in the Nb:TiO2−x samples through oxygen-atmosphere annealing. The oxygen atoms were diffused and seemed to occupy the vacant sites in the annealed samples. As a result, the annealed samples show better thermal stability performance than the as-deposited samples. The universal bolometric parameter (β) values were slightly decreased in the oxygen-annealed Nb:TiO2−x samples. Although bolometric performance was slightly decreased in the oxygen-annealed samples, high thermal stability would be the most essential factor in the case of special applications, such as the military and space industries. Finally, these results will be very useful for reducing the sun-burn effect in infrared detectors.</description><subject>annealing</subject><subject>bolometric properties</subject><subject>Nb:TiO</subject><subject>oxygen diffusion</subject><subject>thermal stability</subject><issn>0022-3727</issn><issn>1361-6463</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNptkLtOxDAQRS0EEstCT-mGjrB-xI_QoRWPlRDbLBWFZTu2yCqJI9uL4A-o-US-hESLqChGdzRzNXd0ADjH6AojKReYclzwktOF1pXh6ADM_kaHYIYQIQUVRByDk5S2CCHGJZ6Bl1U3xPDmOtdnGDzMr26q2OkWpqxN0zb5Y1o8metNsybfn1_vMOluaF2CPkS4620Irath0_uo49jULjubQ0yn4MjrNrmzX52D57vbzfKheFzfr5Y3j0VDCMkFsaS048-krqQRwlkjkLNScM8qSyXCWPoKSY8ZY6VwnprSGim51Y4xzRmdg4v93SYMaht2sR_TVK0YVkQhwjAq1VD70Xf5jw8jNQFUEy010VJ7gPQH5Idkvg</recordid><startdate>20180117</startdate><enddate>20180117</enddate><creator>Reddy, Y Ashok Kumar</creator><creator>Kang, In-Ku</creator><creator>Shin, Young Bong</creator><creator>Lee, Hee Chul</creator><general>IOP Publishing</general><scope/><orcidid>https://orcid.org/0000-0001-5325-4985</orcidid></search><sort><creationdate>20180117</creationdate><title>Improvement of the thermal stability of Nb:TiO2−x samples for uncooled infrared detectors</title><author>Reddy, Y Ashok Kumar ; Kang, In-Ku ; Shin, Young Bong ; Lee, Hee Chul</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i222t-2c24ca9b2d98b77ecb70ec876f59c380118f908f155547ef3b4cb886cae55a653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>annealing</topic><topic>bolometric properties</topic><topic>Nb:TiO</topic><topic>oxygen diffusion</topic><topic>thermal stability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Reddy, Y Ashok Kumar</creatorcontrib><creatorcontrib>Kang, In-Ku</creatorcontrib><creatorcontrib>Shin, Young Bong</creatorcontrib><creatorcontrib>Lee, Hee Chul</creatorcontrib><jtitle>Journal of physics. D, Applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Reddy, Y Ashok Kumar</au><au>Kang, In-Ku</au><au>Shin, Young Bong</au><au>Lee, Hee Chul</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improvement of the thermal stability of Nb:TiO2−x samples for uncooled infrared detectors</atitle><jtitle>Journal of physics. D, Applied physics</jtitle><stitle>JPhysD</stitle><addtitle>J. Phys. D: Appl. Phys</addtitle><date>2018-01-17</date><risdate>2018</risdate><volume>51</volume><issue>2</issue><issn>0022-3727</issn><eissn>1361-6463</eissn><coden>JPAPBE</coden><abstract>In order to reduce the sun-burn effect in a sample of the bolometric material Nb:TiO2−x, oxygen annealing was carried out. This effect can be examined by comparing thermal stability test results between the as-deposited and oxygen-atmosphere-annealed samples under high-temperature exposure conditions. Structural studies confirm the presence of amorphous and rutile phases in the as-deposited and annealed samples, respectively. Composition studies reveal the offset of oxygen vacancies in the Nb:TiO2−x samples through oxygen-atmosphere annealing. The oxygen atoms were diffused and seemed to occupy the vacant sites in the annealed samples. As a result, the annealed samples show better thermal stability performance than the as-deposited samples. The universal bolometric parameter (β) values were slightly decreased in the oxygen-annealed Nb:TiO2−x samples. Although bolometric performance was slightly decreased in the oxygen-annealed samples, high thermal stability would be the most essential factor in the case of special applications, such as the military and space industries. Finally, these results will be very useful for reducing the sun-burn effect in infrared detectors.</abstract><pub>IOP Publishing</pub><doi>10.1088/1361-6463/aa9b60</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0001-5325-4985</orcidid></addata></record> |
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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | annealing bolometric properties Nb:TiO oxygen diffusion thermal stability |
| title | Improvement of the thermal stability of Nb:TiO2−x samples for uncooled infrared detectors |
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