Maererano nemishumo ichangoburwa kubva kuSouth Korea media, Korea Photonics Technology Institute (KOPTI) yakazivisa kubudirira kwebudiriro yehunyanzvi uye yakanaka Micro LED tekinoroji.Iyo yemukati quantum kunyatsoshanda kweiyo Micro LED inogona kuchengetedzwa mukati mechikamu che90%, zvisinei nehukuru hwechip kana akasiyana jekiseni densities.

20μm Micro LED yazvino-voltage curve uye emission image (chikwereti chemufananidzo: KOPTI)

Iyi teknolojia yeMicro LED yakagadzirwa pamwe chete neboka raDr. Jong hyup Baek kubva kuOptical Semiconductor Display Department, boka reZOGAN Semi rinotungamirirwa naDkt Woong ryeol Ryu, uye Purofesa Jong muShim kubva kuDhipatimendi reNano-Optoelectronics paHanyang University.Chigadzirwa chinogadzirisa nyaya yekudzikira nekukurumidza kuburitsa mwenje muMicro LEDs nekuda kwekuderera kwehukuru hwechip uye kuwedzera jekiseni majekiseni.

Zvakaonekwa kuti maMicro LEDs ari pasi pe20μm muhukuru haangoone kukurumidza kuderera kwekuita kwechiedza asi anoratidzawo kurasikirwa kwakanyanya kusiri-radiative recombination mukati meiyo yakaderera yazvino renji (0.01A/cm² kusvika 1A/cm²) inodiwa pakutyaira kuratidzira mapaneru. .Parizvino, indasitiri inodzikisira nyaya iyi kuburikidza nemaitiro ekufambisa padivi re chip, asi haigadzirise dambudziko racho.

Iyo yemukati quantum kunyatsoshanda (IQE) ye20μm uye 10μm yebhuruu Micro LED inosiyana zvichienderana nekuwanda kwazvino.

KOPTI inotsanangura kuti boka rekutsvakurudza rakaderedza dambudziko mu epitaxial layer uye rakavandudza chiedza chekubudisa chiedza kuburikidza nekushandisa chimiro chitsva.Ichi chitsva chimiro chinodzvanya kushushikana kwemuviri kusiana kweiyo Micro LED pasi pechero yekunze yemagetsi munda kana chimiro.Nekuda kweizvozvo, kunyangwe iine diki Micro LED saizi, iyo nyowani dhizaini inoderedza zvakanyanya pasi isiri-radiative recombination kurasikirwa uku ichichengetedza yakakwira kuburitsa kwechiedza pasina kudiwa kwemaitiro ekupfuura.

Chikwata ichi chakanyatso simbisa kushandiswa kweiyo inoshanda uye yakanaka Micro LED tekinoroji mubhuruu, gallium nitride girini, uye zvitsvuku zvishandiso.Mune ramangwana, tekinoroji iyi inobata mukana wekuburitsa yakazara-ruvara gallium nitride Micro LED inoratidza.