Dị ka akụkọ na-adịbeghị anya sitere na mgbasa ozi South Korea, Korea Photonics Technology Institute (KOPTI) ekwuputala ọganihu na-aga nke ọma nke teknụzụ Micro LED dị mma na nke ọma.Enwere ike ịnọgide na-arụ ọrụ dị n'ime quantum nke Micro LED n'ime oke 90%, n'agbanyeghị nha mgbawa ma ọ bụ njupụta injection dị iche iche.

20μm Micro LED mgbanaka voltaji ugbu a na onyonyo ikuku (kredit onyonyo: KOPTI)

Nke a Micro LED technology jikọtara ọnụ site Dr. Jong hyup Baek otu si Optical Semiconductor Ngosipụta Department, na-ZOGAN Semi otu edu Dr. Woong ryeol Ryu, na Prọfesọ Jong na Shim si Department of Nano-Optoelectronics na Hanyang University.Ngwaahịa a na-eleba anya n'okwu nke mbelata nrụpụta ọkụ ngwa ngwa na Micro LEDs n'ihi nha mgbawa na-ebelata yana ịba ụba mmiri injection.

Achọpụtara na Micro LEDs n'okpuru 20μm n'ogo ọ bụghị naanị na-enweta mbelata ngwa ngwa na nrụpụta ọkụ mana ọ na-egosipụtakwa nnukwu mfu recombination na-abụghị nke radiative n'ime oke dị ugbu a (0.01A / cm² ruo 1A / cm²) achọrọ maka oghere ngosi ịnya ụgbọ ala. .Ugbu a, ụlọ ọrụ ahụ na-ebelata okwu a n'ụzọ ụfọdụ site na usoro ngafe n'akụkụ mgbawa, mana ọ naghị edozi nsogbu ahụ n'ụzọ bụ isi.

Ọrụ dị n'ime quantum (IQE) nke 20μm na 10μm blue Micro LED dịgasị iche dabere na njupụta ugbu a.

KOPTI na-akọwa na ndị otu nyocha ahụ ebelatala nsogbu dị na oyi akwa epitaxial ma melite arụmọrụ ọkụ ọkụ site n'itinye usoro ọhụrụ.Ihe owuwu ọhụrụ a na-egbochi mgbanwe nrụgide anụ ahụ nke Micro LED n'okpuru ebe eletriki ma ọ bụ nhazi ọ bụla.N'ihi ya, ọbụna na a nta Micro LED size, ọhụrụ Ọdịdị budata ebelata elu-abụghị radiative recombination losses ka ịnọgide na-enwe elu ìhè emission arụmọrụ na-enweghị mkpa passivation Filiks.

Ndị otu ahụ akwadola ngwa nke teknụzụ Micro LED dị mma na nke na-acha anụnụ anụnụ, gallium nitride green, na ngwaọrụ uhie.N'ọdịnihu, nkà na ụzụ a na-ejide ikike ịmepụta gallium nitride Micro LED ngosi zuru oke.