Ii-LEDs Ngena kwiNanoscale, Kodwa imiqobo esebenzayo icela umngeni kwezona LED zincinci okwangoku

I-Nanoscale LEDs imele enye yemida enomdla kakhulu kwi-photonics, imiboniso ethembisayo kunye nezixhobo ezincinci kunokuba iliso lomntu likwazi ukuzibona - kodwa indlela eya kwi-teknoloji ye-micro-LED esebenzayo igcwele imingeni yefiziksi esisiseko iinjineli eziqala ukuyicombulula. Njengoko abaphandi betyhala ii-LEDs kulawulo lwe-nanometer, ukusebenza kakuhle kwehla kakhulu, kusongela ukujongela phantsi ezona zinto ziluncedo ezenza imithombo yokukhanya encinci ibe nomtsalane kwasekuqaleni.

Yintoni kanye iNanoscale LEDs kwaye kutheni ibalulekile?

I-nanoscale LED — edla ngokubizwa ngokuba yi-micro-LED okanye i-nano-LED ngokuxhomekeke kwimilinganiselo yayo — yidayidi ekhupha ukukhanya esebenza ummandla wayo ulinganisa naphi na ukusuka kumakhulu ambalwa e-nanometer ukuhla ukuya kumashumi eenanometer ukunqumla. Kwezi zikali, ubuchule bemveli bokwenza isemiconductor budibana nemida enzima yobulungiswa be-quantum, ikhemistri yomphezulu, kunye neziphene eziphathekayo ngeendlela ii-LED ezinkulu ezingahlangabenanga nazo.

Isibheno sikhulu kakhulu. I-Nano-LED inokwenza i-ultra-high-resolution displays ye-augmented and virtual reality headsets, izixhobo zokucinga zonyango zesizukulwana esilandelayo, i-optical neural interfaces, kunye ne-on-chip optical interconnects ehambisa idatha ngesantya sokukhanya. Xa kuthelekiswa netekhnoloji ye-OLED, ii-micro-LEDs zithembisa ukukhanya okuphezulu, ubomi obude, kunye nokusetyenziswa kwamandla aphantsi - ubuncinci kwithiyori. Enyanisweni, ukubenza basebenze ngokufanelekileyo kwimilinganiselo ye-nanoscale kubonisa ukuba yenye yezona ngxaki zinzima kubunjineli be-semiconductor yanamhlanje.

Yintoni Ebangela Ukuthotywa kokuSebenza kwezona LED zincinci?

Umngeni ophambili ojongene ne-nanoscale LEDs yinto abaphandi abayibiza ngokuba yi "effective droop" - ukuwa okuqinisekileyo kwi-external quantum performance (EQE) njengoko imilinganiselo yesixhobo iyancipha. Iindlela ezininzi zokudibanisa ziqhuba le mpembelelo:

• Ilahleko zokudityaniswa kwakhona komphezulu: Njengoko umlinganiselo we-surface-area-to-volume unyuka ngokumangalisayo kwi-nanoscale, abathwali bentlawulo (i-electron kunye nemingxunya) kunokwenzeka kakhulu ukuba bafikelele kumphezulu wesixhobo kwaye baphinde badibanise ngaphandle kwe-radiative, ukuvelisa ubushushu endaweni yokukhanya.
• Umonakalo we-Sidewall ukusuka kwi-etching: Iinkqubo zokuchongwa kweplasma ezisetyenziselwa ukwenza ipateni yeemesa ezincinci ze-LED zazisa iziphene zekristale kunye neebhondi zeekhemikhali ezijingayo ecaleni kweendonga, zidala amaziko ongezelelweyo okudibanisa angenamitha ahlutha isixhobo ukusebenza kakuhle.
• I-Auger recombination kwi-high carrier densities: Xa utofa ingxinano yangoku efanayo kwivolumu encinci kakhulu esebenzayo, i-concentration ye-carrier carrier iyanyuka, ibangele i-Auger recombination - inkqubo yemizimba emithathu echitha amandla njengobushushu kune-photons.
• Ukusasaza okungalunganga kwangoku: Kwimilinganiselo ye-nanoscale, umsinga otofelweyo ukholisa ukugcwala kufutshane nabafowunelwa kunokuba usasaze ngokulinganayo kuwo wonke ummandla osebenzayo, kudala iindawo ezishushu ezikhawulezisa ukuthotywa kunye nokunciphisa ukufana.
• Ubunzima bokutsalwa kweefoto: Iziphumo zokuvalelwa kwe-quantum ziguqula indlela yokukhutshwa kunye nobude bewavelength, yenze kube nzima ukukhupha iifotoni ngokufanelekileyo kwisixhobo esincinci.

"Ifiziksi eyenza ii-LEDs ezinkulu zisebenze ngokwenene zichasene nawe kwi-nanoscale. Wonke umlinganiselo owucuthayo uveza umphezulu ongaphezulu, kwaye umphezulu kulapho kufa khona ukukhanya. Ukusombulula i-surface passivation kwinqanaba le-nano ngundoqo ovula yonke iteknoloji." - Umphandi ohamba phambili weefotonics, i-Nature Photonics symposium, 2024

Abaphandi Bajongana Njani neNgxaki yoPhando loMphezulu?

I-Surface passivation - unyango lwekhemikhali lweendawo eziveziweyo ze-semiconductor ukuze zithintele amazwe anesiphene - ibe yinto egqwesileyo yophando kubunjineli be-nano-LED. Amaqela e-MIT, KAIST, kunye ne-IMEC avavanye ngokubeka i-atomic layer deposition (ALD) ye-alumina kunye neefilimu ze-hafnium oxide ukuze zigqume iindonga ezisecaleni kunye nokucinezela ukuhlanganiswa kwakhona kwe-radiative. Iziphumo bezithembisa kodwa azingqinelani, nomgangatho wokugqitha unovakalelo oluphezulu kwikhemistri yangaphambili kunye nobushushu obubekiweyo.

Indlela enxuseneyo isebenzisa i-quantum dot (QD) iileya ezisebenzayo kunemithombo yesiqhelo yobungakanani. Kuba ii-QDs sele zivalele abathwali kumacala amathathu, ngokwendalo abanamvakalelo kangako kumonakalo osecaleni kunemingxuma ecwangcisiweyo yomthamo. Nangona kunjalo, ukudibanisa ii-QD ze-colloidal kuyilo lwe-LED lwe-nanoscale luzisa imiceli mngeni yayo malunga nokusebenza kwenaliti yentlawulo kunye nozinzo lwexesha elide phantsi komsebenzi oqhubekayo.

Ubuchule bokukhula obunoveli, kubandakanywa i-epitaxy yendawo ekhethiweyo kunye ne-nanowire-based architectures ye-LED, nazo ziyazuza. Ii-LED ze-Nanowire ezikhule ngokuthe nkqo ukusuka kwi-substrate ngokwendalo ziye zadlula imiba esecaleni echazwe ziinqwelo-moya zekristale, zisusa umonakalo owenziwe yi-etch ngokupheleleyo - kodwa ukufikelela kwi-uniform wavelength emission kwiibhiliyoni zee-nanowires kuhlala kungumngeni wokuvelisa ongasonjululwanga.

Zityhila ntoni iiMvavanyo zokuSetyenziswa kweHlabathi lokwenyani malunga nokuSebenza kweNano-LED?

Imiboniso yeLabhoratri yee-nanoscale LEDs ifezekise impumelelo encomekayo kwiimeko ezilawulwayo, kodwa ukuphunyezwa kokwenyani kuxela ibali elinzima ngakumbi. Ukutshintshela ukuprinta - inkqubo yokukhetha iitshiphusi ze-nano-LED ukusuka kwi-substrate yokukhula kwaye uzibeke kwi-backplane yokubonisa - yazisa ilahleko yesivuno kunye noxinzelelo lomatshini oluthoba ukusebenza. Imiboniso ye-LED yodidi olugqwesileyo yangoku isafuna imephu yesiphene kunye nemijikelo yokulungisa eyongeza iindleko kunye nobunzima obungaphaya kweemfuno eziqhelekileyo zeLCD okanye ze-OLED.

Uvavanyo olunamandla oluvela kwiinkampani ze-electronics zabathengi abavavanya i-micro-LED ye-smartwatch ye-smartwatch kunye nezicelo ze-headset ze-AR ziye zabonisa ngokuphindaphindiweyo ukuba ixabiso le-EQE eliphunyeziweyo kwiilebhu zeyunivesiti lehla nge-30-50% xa izixhobo zipakishwa kwaye zisebenza phantsi kweemeko zangempela ze-thermal kunye nombane. Umsantsa ophakathi kwemida yobuchule obungundoqo kunye nocikizeko lwesixhobo esisebenzayo uhlala ubanzi, kwaye ukuwuvala ngumceli mngeni wobunjineli weshumi leminyaka elizayo kubuchwephesha bomboniso.

Njani uLawulo lweTekhnoloji eyiComplex xa uthelekisa nokuqhuba ishishini lale mihla?

Ukungqamana phakathi kobunzima be-nano-LED kunye nokuqhuba ishishini ngo-2025 kuyamangalisa. Kanye njengoko iinjineli kufuneka zilungelelanise iinkqubo ezininzi ezixhomekeke kwelinye - ukukhula, ukugqithiswa, ukubethelwa, ukupakishwa, ukuvavanywa - ukuvelisa i-nano-LED esebenzayo, abanini bamashishini kufuneka baququzelele ukuthengisa, ukuthengisa, i-HR, imali, impumelelo yabathengi kunye nokusebenza ngaxeshanye. Ukuphulukana nolawulo lwawo nawuphi na umaleko omnye kubangela ukusilela kwenkqubo.

Le nto kanye kutheni abasebenzisi abangaphezu kwe-138,000 bejike kwi-Mewayz, inkqubo yokusebenza yemodyuli ye-207 ezisa yonke imisebenzi yenkampani yakho kwiqonga elinye, elimanyeneyo. Ukusuka kwi-CRM kunye nolawulo lweprojekthi ukuya kwi-billing, analytics, kunye nentsebenziswano yeqela, i-Mewayz iphelisa ukungqubana kwe-juggling yezixhobo ezinqanyuliweyo - kanye njengokuba ukupasa komphezulu kuphelisa iziphene ezibulala ukusebenza kakuhle kwe-nano-LED. Izicwangciso ziqala kwi-$ 19 kuphela / ngenyanga, ukukala ukuya kwi-$ 49 / ngenyanga kumaqela akhulayo adinga amandla apheleleyo eqonga.

Imibuzo Ebuzwa Rhoqo

Yintoni irekhodi esebenzayo yangoku ye-nanoscale LEDs?

Njengophando olupapashiweyo lwakutsha nje, i-quantum ephezulu yangaphandle ye-sub-10-micron LEDs ihamba phakathi kwe-10-20% phantsi kweemeko zebhubhoratri eziphuculweyo, xa kuthelekiswa ne-60-80% yee-LED eziqhelekileyo zendawo enkulu. Umsantsa osebenzayo uya usiba banzi ngakumbi njengoko ubukhulu besixhobo busondela kulawulo lwe-nanometer enye, okwenza ii-LED ezingaphantsi kwe-100nm zingasebenzi kakhulu kwiinkqubo zorhwebo namhlanje.

Ziya kufika nini ii-nanoscale LEDs kwiimveliso zabathengi abaninzi?

Abahlalutyi bemizimveliso kunye neprojekthi ye-semiconductor yeendlela zendlela ezilinganiselweyo zokufumaneka korhwebo lwenyani ze-micro-LED ezibonisa kwi-premium yezixhobo zabathengi (i-smartwatches ephezulu, iiglasi ze-AR) kwixesha elibekiweyo lika-2026-2028, ngokungena kwemarike yobuninzi kumabonakude kunye nee-smartphones kungalindelekanga ngaphambi ko-2030. ilahleko esebenzayo enxulumene nesiphene kwisikali.

Zinjani ii-nanoscale ze-LED xa zithelekiswa nobuchwepheshe be-OLED kwizicelo eziphathekayo?

IiMicro-LEDs ngokwethiyori zigqwesa ii-OLED ngokuqaqamba okuphezulu (kubalulekile kusetyenziso lwangaphandle lwe-AR/VR), ubomi obude (akukho kuthotywa kwezinto eziphilayo), kunye nokusebenza kwamandla kumanqanaba aphezulu okukhanya. Nangona kunjalo, ii-OLED ngoku ziphumelele ekuvuthweni, iindleko, kunye nokufikeleleka koxinzelelo lwepixel kwinqanaba lezorhwebo. Indawo enqamlezayo - apho uqoqosho lwe-LED oluncinci lukhuphisana - ngumbuzo ophambili weshishini oqhuba iibhiliyoni zeedola kutyalo-mali lwe-R&D kuyo yonke i-Samsung, i-Apple, kunye nekhonkco labo lokubonelela.

Ukuqhuba ishishini akufuneki uzive ngathi ukusombulula ingxaki ye-nanoscale physics. Mewayz ikunika iimodyuli ezidibeneyo ze-207 ukulawula yonke inkalo yokusebenza kwakho - ngaphandle kobunzima. Joyina 138,000+ abasebenzisi asele belwenzile utshintsho. Qala isilingo sakho sasimahla kwi-app.mewayz.com namhlanje kwaye ubone ukuba ishishini lokwenyani OS liyiguqula njani indlela osebenza ngayo.