{"id":187,"date":"2022-01-05T12:55:28","date_gmt":"2022-01-05T04:55:28","guid":{"rendered":"https:\/\/www.eee.hku.hk\/microLED\/?p=187"},"modified":"2022-01-05T12:56:10","modified_gmt":"2022-01-05T04:56:10","slug":"effect-of-indium-content-on-performance-and-reliability-of-ingan-gan-light-emitting-diodes","status":"publish","type":"post","link":"https:\/\/www.eee.hku.hk\/microLED\/effect-of-indium-content-on-performance-and-reliability-of-ingan-gan-light-emitting-diodes\/","title":{"rendered":"Effect of indium content on performance and reliability of InGaN\/GaN light-emitting diodes"},"content":{"rendered":"\n

– ZL Li, PT Lai, and HW Choi<\/em><\/p>\n\n\n\n

\"\"
20 \u00d7 20 \u03bcm\u00a0AFM surface scans of InGaN\/GaN LED wafers with emission wavelengths of (a) 440 nm, (b) 470 nm, (c) 520 nm, (d) 540 nm, and (e) 550 nm.<\/figcaption><\/figure>\n\n\n\n

Journal of Applied Physics, vol. 106, 9, pp. 094507 (2009)<\/em><\/strong><\/p>\n\n\n\n

While longer wavelength emission from InGaN\/GaN light-emitting diodes (LEDs) can be achieved by increasing the indium (In) content in the quantum wells, the increased In content gives rise to side effects to the material and device performance and reliability. It was found that the induced strain in the wafer and the density of threading dislocations increase with increasing In content. From current-voltage and 1\/f<\/em> noise measurements, it was observed that the leakage currents, static resistance, and noise magnitudes rise monotonically with increasing emission wavelength (In composition), which can be attributed to higher defect concentrations. After undergoing a 1000 h reliability test, it was discovered that the optical degradation rates for the longer wavelength green LEDs were significantly higher than those of shorter wavelength.<\/p>\n\n\n\n

DOI: <\/a><\/a><\/a><\/a><\/a><\/a>10.1063\/1.3253754<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

– ZL Li, PT Lai, and HW Choi Journal of Applied Physics, vol. 106, 9, pp. 094507 (2009) While longer wavelength emission from InGaN\/GaN light-emitting…<\/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":[12,8,13],"class_list":["post-187","post","type-post","status-publish","format-standard","hentry","category-publications","tag-led","tag-monolithic","tag-reliability"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/posts\/187","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=187"}],"version-history":[{"count":2,"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/posts\/187\/revisions"}],"predecessor-version":[{"id":192,"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/posts\/187\/revisions\/192"}],"wp:attachment":[{"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/media?parent=187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/categories?post=187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.eee.hku.hk\/microLED\/wp-json\/wp\/v2\/tags?post=187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}