Mwenje dze LED dzave mhinduro yekuvhenekesa kwese kwedzimba nemabhizinesi, asi zvechinyakare LED vakanyora zvikanganiso zvavo kana zvasvika kune yakakura, yakakwirira-resolution kuratidza.LED inoratidzashandisa high voltages uye chinhu chinonzi mukati simba rekushandura simba rakaderera, izvo zvinoreva kuti simba rekushandisa rekushandisa chiratidziro rakakwirira, hupenyu hwekuratidzira hahuna kureba, uye hunogona kumhanya zvakanyanya.
Mune bepa rakaburitswa muNano Tsvagiridzo, vaongorori vanotsanangura nzira yekufambira mberi kwetekinoroji inonzi quantum dots inogona kugadzirisa mamwe ematambudziko aya.Quantum dots idiki makristasi ekugadzira anoita semiconductors.Nekuda kwehukuru hwavo, vane zvivakwa zvakasiyana zvinogona kuita kuti zvive zvakakosha muhunyanzvi hwekuratidzira.
Xing Lin, mutevedzeri wepurofesa wesainzi yeruzivo uye engineering yemagetsi paZhejiang University, akadaro zvechinyakareChiratidziro che LEDvakabudirira muminda yakadai sekuratidzira, kuvheneka uye kutaurirana kwemaziso.Nekudaro, matekiniki anoshandiswa kuwana emhando yepamusoro semiconductor zvinhu uye zvishandiso zvine simba-yakawanda uye inodhura-yakanyanya.Colloidal quantum dots inopa inodhura-inoshanda nzira yekuvaka yakakwirira-inoshanda LED uchishandisa isingadhure mhinduro yekugadzirisa maitiro uye kemikari-giredhi zvinhu.Uyezve, sezvinhu zvemukati, colloidal quantum dots inodarika emissive organic semiconductors maererano nekugadzikana kwekushanda kwenguva refu.
Ese maratidziro e LED anoumbwa neakawanda akaturikidzana.Imwe yezvikamu zvakakosha ndeye emissive layer, apo simba remagetsi rinoshandurwa kuita chiedza chine mavara.Vatsvakurudzi vakashandisa chidimbu chimwe chete che quantum dots seye emission layer.Kazhinji, iyo colloidal quantum dot emission layer ndiyo inokonzera kurasikirwa kwemagetsi nekuda kwekusaita zvakanaka kwecolloidal quantum dot solids.Nekushandisa imwe layer ye quantum dots seyemissive layer, vaongorori vanofungidzira kuti vanogona kudzikisa voltage kusvika pakakwirira kuti vape masimba aya maratidziro.
Chimwe chimiro che quantum dots chinovaita chakanakira LED ndechekuti ivo vanogona kugadzirwa pasina chero hurema hunozokanganisa kugona kwavo.Quantum dots anogona kugadzirwa pasina kusvibiswa uye kuremara kwepamusoro.Sekureva kwaLin, quantum dot LED (QLED) inogona kuwana padyo-kubatana kwemukati simba rekushandura mashandiro pazvino densities yakakodzera kuratidzwa uye kuvhenekesa maficha.Yakajairwa LED yakavakirwa pane epitaxially yakakura semiconductors inoratidzira yakanyanya kusimba roll-off mukati meiyo yazvino density renji.YakanakiraLED kuratidza indasitiri.Musiyano uyu unobva pahunhu husina hurema hwemhando yepamusoro quantum dots.
Mutengo wakaderera wekugadzira maemissive layers ane quantum dots uye kugona kushandisa optical engineering matekiniki kuvandudza mwenje wekubvisa mwenje weQLED, vaongorori vanofungidzira, inogona kunyatso kuvandudza echinyakare LED inoshandiswa mukuvhenekesa, kuratidza, nezvimwe.Asi kuchine kumwe kutsvagisa kunofanirwa kuitwa, uye ikozvino QLED ine zvimwe zvikanganiso zvinoda kukundwa zvisati zvave kugamuchirwa zvakanyanya.
Maererano naLin, tsvakurudzo yakaratidza kuti simba rinopisa rinogona kubudiswa kuti rivandudze kushanda kwe electro-optical power conversion.Nekudaro, kuita kwechishandiso panguva ino kuri kure nekunaka mupfungwa yeakanyanya kushanda voltages uye yakaderera ikozvino densities.Utera uhwu hunogona kukundwa nekutsvaga zvirinani zvekuchaja zvekutakura uye kugadzira iyo interface pakati pechaji chekutakura uye quantum dot layer.Chinangwa chekupedzisira - kuona electroluminescent kutonhora zvishandiso-inofanirwa kuve QLED-yakavakirwa.
Nguva yekutumira: Sep-21-2022