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dc.contributor.authorHsu, Yu-Tingen_US
dc.contributor.authorYu, Cheng-Changen_US
dc.contributor.authorHuang, Kai-Fengen_US
dc.contributor.authorLan, Wen-Howen_US
dc.contributor.authorHuang, Jing-Enen_US
dc.contributor.authorLin, Jia-Chingen_US
dc.contributor.authorLin, Wen-Jenen_US
dc.date.accessioned2014-12-08T15:28:13Z-
dc.date.available2014-12-08T15:28:13Z-
dc.date.issued2012-10-01en_US
dc.identifier.issn1041-1135en_US
dc.identifier.urihttp://dx.doi.org/10.1109/LPT.2012.2212425en_US
dc.identifier.urihttp://hdl.handle.net/11536/20438-
dc.description.abstractNitride-based light-emitting diodes (LEDs) grown on different convex-patterned sapphire substrates are proposed and fabricated. The electrical and optical properties of these LEDs are discussed in detail. It is found that the LED with a ball-shape patterned sapphire substrate has the best crystalline quality and I-V characteristic. On the other hand, on reducing total internal reflection, the LED with hexagonal-shape patterned sapphire substrate (HPSS) has the best performance on output power and external quantum efficiency. In comparison to the LED without patterned substrate, the LED with HPSS has 175% and 165% enhancement on output power and external quantum efficiency, respectively.en_US
dc.language.isoen_USen_US
dc.subjectExternal quantum efficiency (EQE)en_US
dc.subjectlight-emitting diodes (LEDs)en_US
dc.subjectpatterned sapphire substrate (PSS)en_US
dc.titleImproved Output Power of Nitride-Based Light-Emitting Diodes With Convex-Patterned Sapphire Substratesen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/LPT.2012.2212425en_US
dc.identifier.journalIEEE PHOTONICS TECHNOLOGY LETTERSen_US
dc.citation.volume24en_US
dc.citation.issue19en_US
dc.citation.spage1686en_US
dc.citation.epage1688en_US
dc.contributor.department電子物理學系zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.identifier.wosnumberWOS:000310744600008-
dc.citation.woscount6-
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