{"id":209,"date":"2022-01-05T13:11:53","date_gmt":"2022-01-05T05:11:53","guid":{"rendered":"https:\/\/www.eee.hku.hk\/microLED\/?p=209"},"modified":"2022-01-05T13:11:55","modified_gmt":"2022-01-05T05:11:55","slug":"ingan-light-emitting-diodes-with-indium-tin-oxide-photonic-crystal-current-spreading-layer","status":"publish","type":"post","link":"https:\/\/www.eee.hku.hk\/microLED\/ingan-light-emitting-diodes-with-indium-tin-oxide-photonic-crystal-current-spreading-layer\/","title":{"rendered":"InGaN light-emitting diodes with indium-tin-oxide photonic crystal current-spreading layer"},"content":{"rendered":"\n

– KH Li, and HW Choi<\/em><\/p>\n\n\n\n

\"\"
FE-SEM images showing (a) ordered hexagonal monolayer arrays of nanospheres on a GaN LED wafer, (b) the nanosphere-coated sample after ICP etching, and (c) a close-up view of the ITO nano-pillars and the resultant nano-pillar arrays with diameters of (d) 500, (e) 700, and (f) 1000 nm.<\/figcaption><\/figure>\n\n\n\n

Journal of Applied Physics, vol. 110, 5, pp. 053104 (2011)<\/em><\/strong><\/p>\n\n\n\n

Photonic crystal patterns on the indium tin oxide layer of an InGaN\/GaN light-emitting diode are fabricated via nanosphere lithography in combination with dry etching. The silica spheres acting as an etch mask are self-assembled into a hexagonal closed-packed monolayer array. After etching, the photonic crystal (PhC) pattern is formed across the indium-tin-oxide (ITO) films so that the semiconductor layers are left intact and thus free of etch damages. Despite slight degradation to the electrical properties, the ITO-PhC light-emitting diodes (LEDs) exhibit enhancements of their optical emission power by as much as 64% over an as-grown LED. The optical performances and mechanisms of the photonic crystal LEDs are investigated with the aid of rigorous coupled wave analysis and finite-difference time-domain simulations.<\/p>\n\n\n\n

DOI: <\/a><\/a><\/a><\/a><\/a><\/a>10.1063\/1.3631797<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

– KH Li, and HW Choi Journal of Applied Physics, vol. 110, 5, pp. 053104 (2011) Photonic crystal patterns on the indium tin oxide layer…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[12,6,8,10,11,9],"class_list":["post-209","post","type-post","status-publish","format-standard","hentry","category-publications","tag-led","tag-light-extraction","tag-monolithic","tag-nanosphere","tag-nanostructure","tag-photonic-crystal"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/posts\/209","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/comments?post=209"}],"version-history":[{"count":1,"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/posts\/209\/revisions"}],"predecessor-version":[{"id":213,"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/posts\/209\/revisions\/213"}],"wp:attachment":[{"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/media?parent=209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/categories?post=209"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/tags?post=209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}