Nyali za LED zakhala njira yowunikira ponseponse m'nyumba ndi mabizinesi, koma ma LED achikhalidwe adalemba zophophonya zawo zikafika pazowonetsa zazikulu, zowoneka bwino.Mawonekedwe a LEDgwiritsani ntchito ma voliyumu apamwamba komanso chinthu chomwe chimatchedwa kutembenuka kwamphamvu kwamkati ndi chotsika, zomwe zikutanthauza kuti mtengo wamagetsi woyendetsa chiwonetserocho ndi wokwera, moyo wowonetsa siutali, ndipo ukhoza kuthamanga kwambiri.
Mu pepala lofalitsidwa mu Nano Research, ofufuzawo akufotokoza momwe kupita patsogolo kwaukadaulo kotchedwa madontho a quantum kungathetsere zina mwazovutazi.Madontho a Quantum ndi timiyala tating'ono topanga topanga tomwe timakhala ngati semiconductors.Chifukwa cha kukula kwawo, ali ndi zinthu zapadera zomwe zingawapangitse kukhala othandiza pa teknoloji yowonetsera.
Xing Lin, pulofesa wothandizira wa sayansi yazidziwitso ndi uinjiniya wamagetsi pa Yunivesite ya Zhejiang, adatero zachikhalidweChiwonetsero cha LEDzakhala zopambana m'magawo monga mawonetsedwe, kuyatsa ndi kulumikizana kwa kuwala.Komabe, njira zomwe zimagwiritsidwa ntchito popeza zida zapamwamba za semiconductor ndi zida ndizowonjezera mphamvu komanso zotsika mtengo.Madontho a Colloidal quantum amapereka njira yotsika mtengo yopangira ma LED owoneka bwino kwambiri pogwiritsa ntchito njira zotsika mtengo zopangira mayankho ndi zida zamagulu amankhwala.Kuphatikiza apo, monga zida zamagetsi, madontho a colloidal quantum amaposa ma semiconductors amissive organic potengera kukhazikika kwanthawi yayitali.
Zowonetsera zonse za LED zimakhala ndi zigawo zingapo.Chimodzi mwa zigawo zofunika kwambiri ndi mpweya wotuluka, pamene mphamvu yamagetsi imasandulika kukhala kuwala kokongola.Ofufuzawo adagwiritsa ntchito gawo limodzi la madontho a quantum ngati gawo lotulutsa.Nthawi zambiri, gawo la colloidal quantum dot emission layer ndiye gwero la kutayika kwa magetsi chifukwa cha kusayenda bwino kwa ma colloidal quantum dot solids.Pogwiritsa ntchito gawo limodzi la madontho a quantum ngati gawo lotulutsa mpweya, ofufuzawo akuganiza kuti atha kuchepetsa mphamvu yamagetsi kuti ipangitse mphamvu zowonetsera izi.
Chinanso cha madontho a quantum omwe amawapangitsa kukhala abwino kwa LED ndikuti amatha kupangidwa popanda chilema chilichonse chomwe chingakhudze luso lawo.Madontho a Quantum amatha kupangidwa popanda zodetsa ndi zolakwika zapamtunda.Malinga ndi Lin, quantum dot LED (QLED) imatha kukwaniritsa kusinthika kwamphamvu kwamkati mkati mwa kachulukidwe komwe kamayenera kuwonetsedwa ndi kuyatsa.Ma LED okhazikika otengera ma semiconductors omwe amakula kwambiri amawonetsa kuwongolera kolimba mkati mwa kachulukidwe komweko.Ndi zabwino kwaMawonekedwe a LED.Kusiyanaku kumachokera ku chikhalidwe chopanda chilema cha madontho apamwamba kwambiri a quantum.
Mtengo wotsika kwambiri wopangira zigawo zotulutsa mpweya wokhala ndi madontho ochulukirapo komanso kuthekera kogwiritsa ntchito njira zowunikira kuti ziwongolere kuwala kwa QLED, ofufuza akuganiza kuti zitha kusintha bwino ma LED omwe amagwiritsidwa ntchito powunikira, zowonetsera, ndi zina zambiri.Koma pali kafukufuku winanso woti achitidwe, ndipo QLED yapano ili ndi zofooka zina zomwe ziyenera kuthetsedwa asanavomerezedwe kwambiri.
Malinga ndi Lin, kafukufuku wasonyeza kuti mphamvu yotentha imatha kuchotsedwa kuti ipititse patsogolo mphamvu ya kutembenuka kwamagetsi a electro-optical.Komabe, kagwiridwe kake kachipangizo kameneka sikangakhale koyenera m’lingaliro la ma voltages okwera kwambiri komanso kuchulukira kochepa kwapano.Zofooka izi zitha kuthetsedwa pofunafuna zida zonyamulira zabwinoko ndikupanga mawonekedwe pakati pa zonyamula zolipirira ndi magawo a madontho a quantum.Cholinga chachikulu - kuzindikira zida zoziziritsira ma electroluminescent - ziyenera kukhala zochokera ku QLED.
Nthawi yotumiza: Sep-21-2022