Temperature Dependence of the Component Currents and Internal Quantum Efficiency in Blue Light-Emitting Diodes
We have decomposed the blue light-emitting diode (LED) current into the constituent components and studied the temperature dependence of each component and the internal quantum efficiency (IQE) quantitatively over the temperature range from 0°C to 80°C. The most temperature-sensitive current compone...
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| Veröffentlicht in: | IEEE transactions on electron devices 2013-03, Vol.60 (3), p.1060-1067 |
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| container_title | IEEE transactions on electron devices |
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| creator | KANG, Bomoon KIM, Sang-Bae |
| description | We have decomposed the blue light-emitting diode (LED) current into the constituent components and studied the temperature dependence of each component and the internal quantum efficiency (IQE) quantitatively over the temperature range from 0°C to 80°C. The most temperature-sensitive current component is the nonradiative recombination current that increases with the temperature rise, and the component plays a dominant role in determining the temperature dependence of the IQE and luminescence output. Therefore, high-efficiency LEDs achieve high power and low temperature sensitivity simultaneously. On the other hand, the portion of the loss current that is responsible for the efficiency droop decreases with the temperature rise, resulting in lower droop at higher temperature. Some consequences and implications of the temperature dependence are also discussed. |
| doi_str_mv | 10.1109/TED.2013.2242470 |
| format | Article |
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The most temperature-sensitive current component is the nonradiative recombination current that increases with the temperature rise, and the component plays a dominant role in determining the temperature dependence of the IQE and luminescence output. Therefore, high-efficiency LEDs achieve high power and low temperature sensitivity simultaneously. On the other hand, the portion of the loss current that is responsible for the efficiency droop decreases with the temperature rise, resulting in lower droop at higher temperature. Some consequences and implications of the temperature dependence are also discussed.</description><identifier>ISSN: 0018-9383</identifier><identifier>EISSN: 1557-9646</identifier><identifier>DOI: 10.1109/TED.2013.2242470</identifier><identifier>CODEN: IETDAI</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Current components ; current-voltage ( I - V ) characteristics ; Electronics ; Exact sciences and technology ; Light emitting diodes ; light-emitting diodes (LEDs) ; Luminescence ; Optoelectronic devices ; quantum efficiency ; Radiative recombination ; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices ; Temperature ; Temperature dependence ; Temperature measurement ; Temperature sensors</subject><ispartof>IEEE transactions on electron devices, 2013-03, Vol.60 (3), p.1060-1067</ispartof><rights>2014 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Mar 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c321t-7095cbbd0d74a94409fd0ecdf7c681265b1a6b2a30ec56af4e49803b79e83edd3</citedby><cites>FETCH-LOGICAL-c321t-7095cbbd0d74a94409fd0ecdf7c681265b1a6b2a30ec56af4e49803b79e83edd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/6461082$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/6461082$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27129698$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>KANG, Bomoon</creatorcontrib><creatorcontrib>KIM, Sang-Bae</creatorcontrib><title>Temperature Dependence of the Component Currents and Internal Quantum Efficiency in Blue Light-Emitting Diodes</title><title>IEEE transactions on electron devices</title><addtitle>TED</addtitle><description>We have decomposed the blue light-emitting diode (LED) current into the constituent components and studied the temperature dependence of each component and the internal quantum efficiency (IQE) quantitatively over the temperature range from 0°C to 80°C. The most temperature-sensitive current component is the nonradiative recombination current that increases with the temperature rise, and the component plays a dominant role in determining the temperature dependence of the IQE and luminescence output. Therefore, high-efficiency LEDs achieve high power and low temperature sensitivity simultaneously. On the other hand, the portion of the loss current that is responsible for the efficiency droop decreases with the temperature rise, resulting in lower droop at higher temperature. Some consequences and implications of the temperature dependence are also discussed.</description><subject>Applied sciences</subject><subject>Current components</subject><subject>current-voltage ( I - V ) characteristics</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Light emitting diodes</subject><subject>light-emitting diodes (LEDs)</subject><subject>Luminescence</subject><subject>Optoelectronic devices</subject><subject>quantum efficiency</subject><subject>Radiative recombination</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</subject><subject>Temperature</subject><subject>Temperature dependence</subject><subject>Temperature measurement</subject><subject>Temperature sensors</subject><issn>0018-9383</issn><issn>1557-9646</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kc1rGzEQxUVoIG7SeyEXQelxXX2tdnVs7W0SMJSCe1600iiW8Wo3kvaQ_74yNjkNM_PeY_gNQl8pWVNK1I99t10zQvmaMcFEQ27QitZ1Uykp5Ce0IoS2leItv0OfUzqWVgrBVijsYZwh6rxEwFuYIVgIBvDkcD4A3kzjPAUIGW-WGEtNWAeLX0KGGPQJ_110yMuIO-e88cX5jn3Av04L4J1_PeSqG33OPrzirZ8spAd06_QpwZdrvUf_fnf7zXO1-_P0svm5qwxnNFcNUbUZBktsI7QSgihnCRjrGiNbymQ9UC0HpnkZ1lI7AUK1hA-NgpaDtfwefbvkznF6WyDl_jgt54tTT5mikqqaqqIiF5WJU0oRXD9HP-r43lPSn6n2hWp_ptpfqRbL92uwTkafXNTB-PThY02Jl6otuseLzgPAx7r8gpKW8f_s5oDn</recordid><startdate>20130301</startdate><enddate>20130301</enddate><creator>KANG, Bomoon</creator><creator>KIM, Sang-Bae</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20130301</creationdate><title>Temperature Dependence of the Component Currents and Internal Quantum Efficiency in Blue Light-Emitting Diodes</title><author>KANG, Bomoon ; KIM, Sang-Bae</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c321t-7095cbbd0d74a94409fd0ecdf7c681265b1a6b2a30ec56af4e49803b79e83edd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Applied sciences</topic><topic>Current components</topic><topic>current-voltage ( I - V ) characteristics</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Light emitting diodes</topic><topic>light-emitting diodes (LEDs)</topic><topic>Luminescence</topic><topic>Optoelectronic devices</topic><topic>quantum efficiency</topic><topic>Radiative recombination</topic><topic>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</topic><topic>Temperature</topic><topic>Temperature dependence</topic><topic>Temperature measurement</topic><topic>Temperature sensors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>KANG, Bomoon</creatorcontrib><creatorcontrib>KIM, Sang-Bae</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on electron devices</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KANG, Bomoon</au><au>KIM, Sang-Bae</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Temperature Dependence of the Component Currents and Internal Quantum Efficiency in Blue Light-Emitting Diodes</atitle><jtitle>IEEE transactions on electron devices</jtitle><stitle>TED</stitle><date>2013-03-01</date><risdate>2013</risdate><volume>60</volume><issue>3</issue><spage>1060</spage><epage>1067</epage><pages>1060-1067</pages><issn>0018-9383</issn><eissn>1557-9646</eissn><coden>IETDAI</coden><abstract>We have decomposed the blue light-emitting diode (LED) current into the constituent components and studied the temperature dependence of each component and the internal quantum efficiency (IQE) quantitatively over the temperature range from 0°C to 80°C. The most temperature-sensitive current component is the nonradiative recombination current that increases with the temperature rise, and the component plays a dominant role in determining the temperature dependence of the IQE and luminescence output. Therefore, high-efficiency LEDs achieve high power and low temperature sensitivity simultaneously. On the other hand, the portion of the loss current that is responsible for the efficiency droop decreases with the temperature rise, resulting in lower droop at higher temperature. Some consequences and implications of the temperature dependence are also discussed.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TED.2013.2242470</doi><tpages>8</tpages></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Current components current-voltage ( I - V ) characteristics Electronics Exact sciences and technology Light emitting diodes light-emitting diodes (LEDs) Luminescence Optoelectronic devices quantum efficiency Radiative recombination Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Temperature Temperature dependence Temperature measurement Temperature sensors |
| title | Temperature Dependence of the Component Currents and Internal Quantum Efficiency in Blue Light-Emitting Diodes |
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