White-Light Emission From GaN-Based TJ LEDs Coated With Red Phosphor
We report the fabrication of white light-emitting diode (LED) lamps by coating red phosphor onto the green/blue dual-color tunnel-junction (TJ) LED chips. For the dual-color TJ LED chips without phosphor coating, it was found that electroluminescence intensity of the green peak increased faster than...
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| Veröffentlicht in: | IEEE electron device letters 2016-09, Vol.37 (9), p.1150-1153 |
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| creator | Lam, Kin-Tak Lin, Wei-Heng Shei, Shih-Chang Lin, Nan-Ming Chen, Wei-Shou Chang, Shoou-Jinn |
| description | We report the fabrication of white light-emitting diode (LED) lamps by coating red phosphor onto the green/blue dual-color tunnel-junction (TJ) LED chips. For the dual-color TJ LED chips without phosphor coating, it was found that electroluminescence intensity of the green peak increased faster than that of the blue peak, as we increased the injection current. Under the same injection current, it was found that power consumption and heat generation were larger for the TJ LEDs, as compared with the conventional blue LED chips. By coating 0.1-g red phosphor onto the 660 × 760 μm 2 dual-color TJ LED chips, we achieved white LED lamps with color temperature, T C , of 4102 K, color-rending index, CRI, of 68, and the Commission Internationale de L'Eclairage color coordinates of (0.32, 0.36). Furthermore, it was found that T C observed from the dual-color TJ LED+red phosphor white LED lamps were smaller than those observed from the blue LED+yellow phosphor white LED lamps. |
| doi_str_mv | 10.1109/LED.2016.2588887 |
| format | Article |
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For the dual-color TJ LED chips without phosphor coating, it was found that electroluminescence intensity of the green peak increased faster than that of the blue peak, as we increased the injection current. Under the same injection current, it was found that power consumption and heat generation were larger for the TJ LEDs, as compared with the conventional blue LED chips. By coating 0.1-g red phosphor onto the 660 × 760 μm 2 dual-color TJ LED chips, we achieved white LED lamps with color temperature, T C , of 4102 K, color-rending index, CRI, of 68, and the Commission Internationale de L'Eclairage color coordinates of (0.32, 0.36). Furthermore, it was found that T C observed from the dual-color TJ LED+red phosphor white LED lamps were smaller than those observed from the blue LED+yellow phosphor white LED lamps.</description><identifier>ISSN: 0741-3106</identifier><identifier>EISSN: 1558-0563</identifier><identifier>DOI: 10.1109/LED.2016.2588887</identifier><identifier>CODEN: EDLEDZ</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Chips ; Coating ; Coatings ; Color ; Color temperature ; Gallium nitrides ; GaN ; hybrid tunnel junction ; Injection current ; Lamps ; LED lamps ; LEDs ; Light emitting diodes ; Packaging ; phosphor ; Phosphors ; Quantum well devices ; white-light</subject><ispartof>IEEE electron device letters, 2016-09, Vol.37 (9), p.1150-1153</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c324t-a2c7198e4eaa298968c64611bb74c4c7e2cab6af11ca48e542dc7a18b8cb6b1b3</citedby><cites>FETCH-LOGICAL-c324t-a2c7198e4eaa298968c64611bb74c4c7e2cab6af11ca48e542dc7a18b8cb6b1b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7506249$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54736</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/7506249$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Lam, Kin-Tak</creatorcontrib><creatorcontrib>Lin, Wei-Heng</creatorcontrib><creatorcontrib>Shei, Shih-Chang</creatorcontrib><creatorcontrib>Lin, Nan-Ming</creatorcontrib><creatorcontrib>Chen, Wei-Shou</creatorcontrib><creatorcontrib>Chang, Shoou-Jinn</creatorcontrib><title>White-Light Emission From GaN-Based TJ LEDs Coated With Red Phosphor</title><title>IEEE electron device letters</title><addtitle>LED</addtitle><description>We report the fabrication of white light-emitting diode (LED) lamps by coating red phosphor onto the green/blue dual-color tunnel-junction (TJ) LED chips. For the dual-color TJ LED chips without phosphor coating, it was found that electroluminescence intensity of the green peak increased faster than that of the blue peak, as we increased the injection current. Under the same injection current, it was found that power consumption and heat generation were larger for the TJ LEDs, as compared with the conventional blue LED chips. By coating 0.1-g red phosphor onto the 660 × 760 μm 2 dual-color TJ LED chips, we achieved white LED lamps with color temperature, T C , of 4102 K, color-rending index, CRI, of 68, and the Commission Internationale de L'Eclairage color coordinates of (0.32, 0.36). Furthermore, it was found that T C observed from the dual-color TJ LED+red phosphor white LED lamps were smaller than those observed from the blue LED+yellow phosphor white LED lamps.</description><subject>Chips</subject><subject>Coating</subject><subject>Coatings</subject><subject>Color</subject><subject>Color temperature</subject><subject>Gallium nitrides</subject><subject>GaN</subject><subject>hybrid tunnel junction</subject><subject>Injection current</subject><subject>Lamps</subject><subject>LED lamps</subject><subject>LEDs</subject><subject>Light emitting diodes</subject><subject>Packaging</subject><subject>phosphor</subject><subject>Phosphors</subject><subject>Quantum well devices</subject><subject>white-light</subject><issn>0741-3106</issn><issn>1558-0563</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkM1LAzEQxYMoWKt3wcuCFy9bM8lskj1qv1SKilR6DNk0dbe0TU22B_97U1o8OJeZgd97zDxCroH2AGh5PxkOeoyC6LFCpZInpANFoXJaCH5KOlQi5ByoOCcXMS4pBUSJHTKY1U3r8knzVbfZcN3E2PhNNgp-nY3Na_5ooptn05cs2ces702b1lnT1tlHGt5rH7e1D5fkbGFW0V0de5d8jobT_lM-eRs_9x8mueUM29wwK6FUDp0xrFSlUFagAKgqiRatdMyaSpgFgDWoXIFsbqUBVSlbiQoq3iV3B99t8N87F1udDrZutTIb53dRg-LpZURBE3r7D136Xdik6xIFyLgExhNFD5QNPsbgFnobmrUJPxqo3seq0996H6s-xpokNwdJ45z7w2VBBcOS_wIPCHCv</recordid><startdate>201609</startdate><enddate>201609</enddate><creator>Lam, Kin-Tak</creator><creator>Lin, Wei-Heng</creator><creator>Shei, Shih-Chang</creator><creator>Lin, Nan-Ming</creator><creator>Chen, Wei-Shou</creator><creator>Chang, Shoou-Jinn</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>201609</creationdate><title>White-Light Emission From GaN-Based TJ LEDs Coated With Red Phosphor</title><author>Lam, Kin-Tak ; Lin, Wei-Heng ; Shei, Shih-Chang ; Lin, Nan-Ming ; Chen, Wei-Shou ; Chang, Shoou-Jinn</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c324t-a2c7198e4eaa298968c64611bb74c4c7e2cab6af11ca48e542dc7a18b8cb6b1b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Chips</topic><topic>Coating</topic><topic>Coatings</topic><topic>Color</topic><topic>Color temperature</topic><topic>Gallium nitrides</topic><topic>GaN</topic><topic>hybrid tunnel junction</topic><topic>Injection current</topic><topic>Lamps</topic><topic>LED lamps</topic><topic>LEDs</topic><topic>Light emitting diodes</topic><topic>Packaging</topic><topic>phosphor</topic><topic>Phosphors</topic><topic>Quantum well devices</topic><topic>white-light</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lam, Kin-Tak</creatorcontrib><creatorcontrib>Lin, Wei-Heng</creatorcontrib><creatorcontrib>Shei, Shih-Chang</creatorcontrib><creatorcontrib>Lin, Nan-Ming</creatorcontrib><creatorcontrib>Chen, Wei-Shou</creatorcontrib><creatorcontrib>Chang, Shoou-Jinn</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>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>IEEE electron device letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Lam, Kin-Tak</au><au>Lin, Wei-Heng</au><au>Shei, Shih-Chang</au><au>Lin, Nan-Ming</au><au>Chen, Wei-Shou</au><au>Chang, Shoou-Jinn</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>White-Light Emission From GaN-Based TJ LEDs Coated With Red Phosphor</atitle><jtitle>IEEE electron device letters</jtitle><stitle>LED</stitle><date>2016-09</date><risdate>2016</risdate><volume>37</volume><issue>9</issue><spage>1150</spage><epage>1153</epage><pages>1150-1153</pages><issn>0741-3106</issn><eissn>1558-0563</eissn><coden>EDLEDZ</coden><abstract>We report the fabrication of white light-emitting diode (LED) lamps by coating red phosphor onto the green/blue dual-color tunnel-junction (TJ) LED chips. For the dual-color TJ LED chips without phosphor coating, it was found that electroluminescence intensity of the green peak increased faster than that of the blue peak, as we increased the injection current. Under the same injection current, it was found that power consumption and heat generation were larger for the TJ LEDs, as compared with the conventional blue LED chips. By coating 0.1-g red phosphor onto the 660 × 760 μm 2 dual-color TJ LED chips, we achieved white LED lamps with color temperature, T C , of 4102 K, color-rending index, CRI, of 68, and the Commission Internationale de L'Eclairage color coordinates of (0.32, 0.36). Furthermore, it was found that T C observed from the dual-color TJ LED+red phosphor white LED lamps were smaller than those observed from the blue LED+yellow phosphor white LED lamps.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/LED.2016.2588887</doi><tpages>4</tpages></addata></record> |
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| subjects | Chips Coating Coatings Color Color temperature Gallium nitrides GaN hybrid tunnel junction Injection current Lamps LED lamps LEDs Light emitting diodes Packaging phosphor Phosphors Quantum well devices white-light |
| title | White-Light Emission From GaN-Based TJ LEDs Coated With Red Phosphor |
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