Amachaphaza e-Quantum kunye ne-encapsulation
Njengento entsha ye-nano, amachaphaza e-quantum (QDs) anomsebenzi obalaseleyo ngenxa yobukhulu bayo.Ubume balo mbandela buyi-spherical okanye i-quasi-spherical, kwaye ububanzi bayo buvela kwi-2nm ukuya kwi-20nm.I-QD ineenzuzo ezininzi, ezifana ne-wide excitation spectrum, i-spectrum ephumayo encinci, i-Stokes intshukumo enkulu, ixesha elide le-fluorescent kunye ne-biocompatibility efanelekileyo, ngakumbi i-spectrum ephumayo ye-QDs inokugubungela lonke uluhlu lokukhanya olubonakalayo ngokutshintsha ubungakanani bayo.
Phakathi kwezixhobo zokukhanya ze-QDs ezahlukeneyo, ii-QDs Ⅱ~Ⅵ ezibandakanya i-CdSe ziye zasetyenziswa kwizicelo ngokubanzi ngenxa yophuhliso lwazo olukhawulezayo.Ububanzi be-half-peak ububanzi be-Ⅱ~Ⅵ QDs buvela kwi-30nm ukuya kwi-50nm, enokuthi ibe ngaphantsi kwe-30nm kwiimeko ezifanelekileyo ze-synthesis, kunye ne-fluorescence quantum isivuno sazo siphantse sifike kwi-100%.Nangona kunjalo, ubukho be-Cd buthintele uphuhliso lwee-QDs.I-Ⅲ~Ⅴ QDs ezingena-Cd zaphuhliswa kakhulu, isivuno se-fluorescence quantum yesi sixhobo simalunga ne-70%.Ububanzi besiqingatha sokukhanya okuluhlaza kwe-InP / ZnS yi-40 ~ 50 nm, kunye nokukhanya okubomvu kwe-InP / ZnS malunga ne-55 nm.Ipropati yesi sixhobo kufuneka iphuculwe.Kungekudala, i-ABX3 perovskites engafunekiyo ukugubungela isakhiwo seqokobhe iye yatsala ingqalelo enkulu.I-emission wavelength yazo inokulungiswa ekukhanyeni okubonakalayo ngokulula.Isivuno se-fluorescence quantum se-perovskite singaphezulu kwe-90%, kwaye ububanzi besiqingatha se-half-peak malunga ne-15nm.Ngenxa yombala we-gamut yezixhobo ze-luminescent ze-QDs zinokuya kuthi ga kwi-140% ye-NTSC, olu hlobo lwemathiriyeli lunosetyenziso olukhulu kwisixhobo sokukhanya.Ezona zicelo ziphambili zibandakanya ukuba endaweni ye-phosphor yomhlaba enqabileyo ukukhupha izibane ezinemibala emininzi kunye nezibane kwii-electrode zefilim ezincinci.
I-QDs ibonisa umbala okhanyayo ogcweleyo ngenxa yesi sixhobo unokufumana i-spectrum kunye naluphi na ubude be-wave kwindawo yokukhanyisa, apho isiqingatha sobude bobude obungaphantsi kwe-20nm.Ii-QDs zineempawu ezininzi, ezibandakanya umbala ophumayo ohlengahlengiswayo, imbonakalo emxinwa yokukhutshwa, isivuno esiphezulu se-fluorescence quantum.Zingasetyenziselwa ukwandisa i-spectrum kwizibane zangasemva ze-LCD kunye nokuphucula amandla okubonakalisa umbala kunye ne-gamut ye-LCD.
Iindlela zokuhlanganisa ii-QD zezi zilandelayo:
I-1) Kwi-chip: i-powder fluorescent yendabuko ithathelwe indawo yi-QDs yezixhobo ze-luminescent, eyona ndlela iphambili ye-encapsulation ye-QDs kwindawo yokukhanyisa.I-advanteji yale kwi-chip isixa-mali esincinci sezinto, kwaye i-disadvantage kukuba izinto kufuneka zibe nokuzinza okuphezulu.
2）Kumphezulu:isakhiwo sisetyenziswa ikakhulu kwisibane esingasemva.Ifilimu ye-optical yenziwe nge-QDs, echanekileyo ngaphezu kwe-LGP kwi-BLU.Nangona kunjalo, ixabiso eliphezulu lendawo enkulu yefilimu ye-optical yanciphisa ukusetyenziswa okubanzi kwale ndlela.
I-3) Kwi-edge: izinto ze-QDs zifakwe kwi-strip, kwaye zibekwe kwicala le-LED strip kunye ne-LGP.Le ndlela yanciphisa imiphumo ye-thermal kunye ne-optical radiation ebangelwa yi-blue LED kunye ne-QDs luminescent materials.Ngaphezu koko, ukusetyenziswa kwezinto ze-QDs kuyancipha.
