Enhancement of Electrical Parameters of Ni/n-GaN SBDs under Remote and not In-flux Gamma Irradiation
Remote and not in-flux gamma irradiation effects have been examined on the cumulative dose ranges from 250 Gy to 1 kGy by current-voltage (I–V) and capacitance-voltage (C-V) characteristics for Ni/n-GaN Schottky barrier diodes (SBDs). The interface and charge transport properties of Ni/n-GaN SBDs ar...
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| Veröffentlicht in: | ECS journal of solid state science and technology 2020-10, Vol.9 (9), p.93017 |
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| container_title | ECS journal of solid state science and technology |
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| creator | Kumar, Santosh Mariswamy, Vinay Kumar Kumar, Ashish Kandasami, Asokan Sannathammegowda, Krishnaveni |
| description | Remote and not in-flux gamma irradiation effects have been examined on the cumulative dose ranges from 250 Gy to 1 kGy by current-voltage (I–V) and capacitance-voltage (C-V) characteristics for Ni/n-GaN Schottky barrier diodes (SBDs). The interface and charge transport properties of Ni/n-GaN SBDs are significantly changed after gamma irradiation. In addition, the reverse current conduction mechanism indicates that the emission of Poole-Frenkel is dominant in lower voltages and Schottky emission for different doses at the higher voltage. The electrical parameters, such as barrier height and series resistance, decreases significantly at 500 Gy. Due to the internal irradiation of Compton electrons caused by primary gamma photons, low-dose gamma irradiation reveals the enhancement of device characteristics. Nonetheless, for higher doses of gamma irradiation above 500 Gy, degradation of Ni/n-GaN characteristics was observed. |
| doi_str_mv | 10.1149/2162-8777/abc70a |
| format | Article |
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The interface and charge transport properties of Ni/n-GaN SBDs are significantly changed after gamma irradiation. In addition, the reverse current conduction mechanism indicates that the emission of Poole-Frenkel is dominant in lower voltages and Schottky emission for different doses at the higher voltage. The electrical parameters, such as barrier height and series resistance, decreases significantly at 500 Gy. Due to the internal irradiation of Compton electrons caused by primary gamma photons, low-dose gamma irradiation reveals the enhancement of device characteristics. Nonetheless, for higher doses of gamma irradiation above 500 Gy, degradation of Ni/n-GaN characteristics was observed.</description><identifier>ISSN: 2162-8769</identifier><identifier>EISSN: 2162-8777</identifier><identifier>DOI: 10.1149/2162-8777/abc70a</identifier><identifier>CODEN: EJSSBG</identifier><language>eng</language><publisher>IOP Publishing</publisher><subject>Charge transport mechanism ; Electrical parameters ; Gamma irradiation ; GaN SBDs ; Remote and not influx</subject><ispartof>ECS journal of solid state science and technology, 2020-10, Vol.9 (9), p.93017</ispartof><rights>2020 The Author(s). 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Solid State Sci. Technol</addtitle><description>Remote and not in-flux gamma irradiation effects have been examined on the cumulative dose ranges from 250 Gy to 1 kGy by current-voltage (I–V) and capacitance-voltage (C-V) characteristics for Ni/n-GaN Schottky barrier diodes (SBDs). The interface and charge transport properties of Ni/n-GaN SBDs are significantly changed after gamma irradiation. In addition, the reverse current conduction mechanism indicates that the emission of Poole-Frenkel is dominant in lower voltages and Schottky emission for different doses at the higher voltage. The electrical parameters, such as barrier height and series resistance, decreases significantly at 500 Gy. Due to the internal irradiation of Compton electrons caused by primary gamma photons, low-dose gamma irradiation reveals the enhancement of device characteristics. Nonetheless, for higher doses of gamma irradiation above 500 Gy, degradation of Ni/n-GaN characteristics was observed.</description><subject>Charge transport mechanism</subject><subject>Electrical parameters</subject><subject>Gamma irradiation</subject><subject>GaN SBDs</subject><subject>Remote and not influx</subject><issn>2162-8769</issn><issn>2162-8777</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><recordid>eNp1kE1PwzAMhiMEEtPYnWN-AGVJGprmCGOMSdNAfJwjNx-iU5tMSSbBv6fV0G74Ysv2-8p-ELqm5JZSLueMVqyohRBzaLQgcIYmp9b5qa7kJZqltCNDVDUXJZsgs_Rf4LXtrc84OLzsrM6x1dDhV4jQ22xjGgfbdu6LFWzx-8NjwgdvbMRvtg_ZYvAG-5Dx2heuO3zjFfQ94HWMYFrIbfBX6MJBl-zsL0_R59PyY_FcbF5W68X9ptAlY7kALSsja2KZo0Q3XDJCCS8NSCosUC1NQ4WUvObclE5rKRoumvLODR9XwthyisjRV8eQUrRO7WPbQ_xRlKgRlBpJqJGKOoIaJDdHSRv2ahcO0Q8H_r_-C0KyaY4</recordid><startdate>20201001</startdate><enddate>20201001</enddate><creator>Kumar, Santosh</creator><creator>Mariswamy, Vinay Kumar</creator><creator>Kumar, Ashish</creator><creator>Kandasami, Asokan</creator><creator>Sannathammegowda, Krishnaveni</creator><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-4695-7583</orcidid></search><sort><creationdate>20201001</creationdate><title>Enhancement of Electrical Parameters of Ni/n-GaN SBDs under Remote and not In-flux Gamma Irradiation</title><author>Kumar, Santosh ; Mariswamy, Vinay Kumar ; Kumar, Ashish ; Kandasami, Asokan ; Sannathammegowda, Krishnaveni</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c322t-ac96d980e2f10cb49201043da917ea1c9db17994844d3fcc97b47b35f70a67de3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Charge transport mechanism</topic><topic>Electrical parameters</topic><topic>Gamma irradiation</topic><topic>GaN SBDs</topic><topic>Remote and not influx</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kumar, Santosh</creatorcontrib><creatorcontrib>Mariswamy, Vinay Kumar</creatorcontrib><creatorcontrib>Kumar, Ashish</creatorcontrib><creatorcontrib>Kandasami, Asokan</creatorcontrib><creatorcontrib>Sannathammegowda, Krishnaveni</creatorcontrib><collection>IOP Publishing Free Content</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><jtitle>ECS journal of solid state science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kumar, Santosh</au><au>Mariswamy, Vinay Kumar</au><au>Kumar, Ashish</au><au>Kandasami, Asokan</au><au>Sannathammegowda, Krishnaveni</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhancement of Electrical Parameters of Ni/n-GaN SBDs under Remote and not In-flux Gamma Irradiation</atitle><jtitle>ECS journal of solid state science and technology</jtitle><stitle>JSS</stitle><addtitle>ECS J. Solid State Sci. Technol</addtitle><date>2020-10-01</date><risdate>2020</risdate><volume>9</volume><issue>9</issue><spage>93017</spage><pages>93017-</pages><issn>2162-8769</issn><eissn>2162-8777</eissn><coden>EJSSBG</coden><abstract>Remote and not in-flux gamma irradiation effects have been examined on the cumulative dose ranges from 250 Gy to 1 kGy by current-voltage (I–V) and capacitance-voltage (C-V) characteristics for Ni/n-GaN Schottky barrier diodes (SBDs). The interface and charge transport properties of Ni/n-GaN SBDs are significantly changed after gamma irradiation. In addition, the reverse current conduction mechanism indicates that the emission of Poole-Frenkel is dominant in lower voltages and Schottky emission for different doses at the higher voltage. The electrical parameters, such as barrier height and series resistance, decreases significantly at 500 Gy. Due to the internal irradiation of Compton electrons caused by primary gamma photons, low-dose gamma irradiation reveals the enhancement of device characteristics. Nonetheless, for higher doses of gamma irradiation above 500 Gy, degradation of Ni/n-GaN characteristics was observed.</abstract><pub>IOP Publishing</pub><doi>10.1149/2162-8777/abc70a</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-4695-7583</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Charge transport mechanism Electrical parameters Gamma irradiation GaN SBDs Remote and not influx |
| title | Enhancement of Electrical Parameters of Ni/n-GaN SBDs under Remote and not In-flux Gamma Irradiation |
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