A cewar rahotanni na baya-bayan nan daga kafofin watsa labarai na Koriya ta Kudu, Cibiyar Fasaha ta Koriya ta Koriya ta Koriya (KOPTI) ta sanar da ci gaba da ci gaba da ingantaccen fasahar Micro LED mai inganci.Ana iya kiyaye ƙimar ƙididdige ƙididdige ƙimar Micro LED tsakanin kewayon 90%, ba tare da la'akari da girman guntu ba ko nau'ikan allura na yanzu.

20μm Micro LED lanƙwan ƙarfin lantarki na yanzu da hoton fitarwa (kiredit hoto: KOPTI)

Wannan fasaha ta Micro LED an haɗa shi ta hanyar ƙungiyar Dr. Jong hyup Baek daga Sashen Nuni Semiconductor na gani, ƙungiyar Semiconductor ZOGAN karkashin jagorancin Dr. Woong ryeol Ryu, da Farfesa Jong a Shim daga Sashen Nano-Optoelectronics a Jami'ar Hanyang.Samfurin yana magance matsalar raguwar iskar haske da sauri a cikin Micro LEDs saboda raguwar girman guntu da ƙara yawan igiyoyin allura.

An gano cewa Micro LEDs da ke ƙasa da 20μm a cikin girman ba wai kawai samun saurin raguwar haɓakar haɓakar hasken haske ba amma kuma suna nuna asarar haɓakar haɓakar da ba ta haɓaka ba a cikin ƙaramin kewayon yanzu (0.01A / cm² zuwa 1A / cm²) da ake buƙata don tuki nunin bangarori. .A halin yanzu, masana'antar ta ɗan sassauta wannan batun ta hanyar hanyoyin wucewa a gefen guntu, amma ba ta magance matsalar ta asali ba.

Ingantattun ƙididdiga na ciki (IQE) na 20μm da 10μm blue Micro LED ya bambanta bisa ga yawan halin yanzu.

KOPTI ya bayyana cewa ƙungiyar bincike ta rage nauyin da ke cikin sashin epitaxial kuma ya inganta ingantaccen hasken haske ta hanyar aiwatar da sabon tsari.Wannan sabon tsarin yana danne bambance-bambancen damuwa na jiki na Micro LED a ƙarƙashin kowane filin lantarki na waje ko tsari.A sakamakon haka, ko da tare da ƙarami Micro LED size, da sabon tsarin muhimmanci rage surface non-radiative recombination asarar yayin da rike high haske watsi yadda ya dace ba tare da bukatar passivation matakai.

Ƙungiyar ta sami nasarar tabbatar da aikace-aikacen ingantaccen fasaha mai kyau na Micro LED a cikin shuɗi, gallium nitride kore, da na'urorin ja.A nan gaba, wannan fasaha tana riƙe da yuwuwar samar da cikakken launi gallium nitride Micro LED nuni.