1. I-chip ye-Blue-LED + uhlobo lwe-phosphor oluphuzi-luhlaza okuhlanganisa uhlobo lokuphuma kokuphuma kwe-phosphor olunemibala eminingi

 Ungqimba oluphuzi lwephosphor lumunca ingxenye ye-ukukhanya okuluhlaza okwesibhakabhakaye-chip ye-LED ukukhiqiza i-photoluminescence, futhi enye ingxenye yokukhanya okuluhlaza okwesibhakabhaka okuvela ku-chip ye-LED idluliselwa ngaphandle kwesendlalelo se-phosphor futhi ihlanganiswe nokukhanya okuphuzi okuluhlaza okukhishwa yi-phosphor ezindaweni ezihlukahlukene esikhaleni, nokubomvu, ukukhanya okuluhlaza okwesibhakabhaka kuxutshwe ukwenza ukukhanya okumhlophe;Ngale ndlela, inani eliphakeme kakhulu le-theoretical lokuguqulwa kwe-phosphor photoluminescence ukusebenza kahle, okungenye ye-quantum yangaphandle esebenza kahle, ngeke idlule i-75%;futhi izinga eliphakeme kakhulu lokukhishwa kokukhanya kusuka ku-chip lingafinyelela cishe ku-70% kuphela, ngakho-ke, ukukhanya okumhlophe okuluhlaza okwesibhakabhaka Ukukhanya okuphezulu kwe-LED okukhanyayo ngeke kudlule i-340 Lm / W, futhi i-CREE ifinyelele ku-303Lm / W eminyakeni embalwa edlule.Uma imiphumela yokuhlolwa inembile, kufanelekile ukubungazwa.

2. Inhlanganisela ebomvu, eluhlaza okwesibhakabhaka nohlaza okwesibhakabhakaI-RGB LEDuhlobo luhlanganisa uhlobo lwe-RGBW-LED, njll.

 Ama-diode amathathu akhipha ukukhanya e-R-LED (bomvu) + G-LED (green) + B- LED (blue) ahlanganiswe ndawonye, ​​futhi imibala emithathu eyinhloko ebomvu, eluhlaza okwesibhakabhaka noluhlaza okwesibhakabhaka ixubene ngokuqondile esikhaleni ukuze ibe mhlophe. ukukhanya.Ukuze kukhiqizwe ukukhanya okumhlophe okusebenza kahle kakhulu ngale ndlela, okokuqala, ama-LED emibala ehlukahlukene, ikakhulukazi ama-LED aluhlaza, kufanele abe imithombo yokukhanya esebenza kahle kakhulu, engabonakala “ekukhanyeni okumhlophe okulinganayo kwamandla” lapho ukukhanya okuluhlaza kubalwa khona. cishe ama-69%.Njengamanje, ukusebenza kahle okukhanyayo kwama-LED aluhlaza okwesibhakabhaka nabomvu kuye kwaba phezulu kakhulu, ukusebenza kahle kwe-quantum kwangaphakathi kudlula u-90% no-95%, ngokulandelana, kodwa ukusebenza kahle kwe-quantum yangaphakathi kwama-LED aluhlaza kusemuva kakhulu.Lesi simo sokukhanya okuphansi kokukhanya okuluhlaza kwama-LED asekelwe ku-GaN sibizwa ngokuthi “igebe lokukhanya okuluhlaza.”Isizathu esiyinhloko ukuthi ama-LED aluhlaza awazange athole izinto zawo ze-epitaxial.Izinto ezikhona zochungechunge lwe-phosphorous arsenic nitride zinokusebenza okuphansi ku-spectrum ephuzi-luhlaza.Izinto ze-epitaxial ezibomvu noma eziluhlaza okwesibhakabhaka zisetshenziselwa ukwenza ama-LED aluhlaza.Ngaphansi kwesimo sokuminyana okuphansi kwamanje, ngenxa yokuthi akukho ukuguqulwa kokuguqulwa kwe-phosphor, i-LED eluhlaza inokukhanya okuphezulu okuphezulu kunokukhanya okuluhlaza okwesibhakabhaka + kwe-phosphor.Kubikwa ukuthi ukusebenza kahle kwayo okukhanyayo kufinyelela ku-291Lm/W ngaphansi kwesimo se-1mA yamanje.Kodwa-ke, ukwehla kokusebenza kahle kokukhanya kokukhanya okuluhlaza okubangelwa umphumela we-Droop ngaphansi kwamandla amakhulu kubalulekile.Lapho ukuminyana kwamanje kukhula, ukusebenza kahle kokukhanya kwehla ngokushesha.Njengamanje okungu-350mA, ukukhanya okusebenzayo kungu-108Lm/W.Ngaphansi kwesimo se-1A, ukusebenza kahle kokukhanya kuyehla.Kufika ku-66Lm/W.

Ku-III phosphines, ukuphuma kokukhanya ebhandeni eliluhlaza kube isithiyo esiyisisekelo ohlelweni lwezinto ezibonakalayo.Ukushintsha ukwakheka kwe-AlInGaP ukuze iyenze ikhiphe ukukhanya okuluhlaza esikhundleni sokubomvu, okuwolintshi noma okuphuzi—okubangela umkhawulo ongenele wenkampani yenethiwekhi kungenxa yegebe eliphansi lamandla ohlelo lwezinto ezibonakalayo, olungafaki ukuhlanganisa kabusha okusebenzayo kwemisebe.

Ngakho-ke, indlela yokuthuthukisa ukusebenza kahle kokukhanya kwama-LED aluhlaza: ngakolunye uhlangothi, funda indlela yokunciphisa umphumela we-Droop ngaphansi kwezimo zezinto ezikhona ze-epitaxial ukuze kuthuthukiswe ukusebenza kahle kokukhanya;okwesibili, sebenzisa ukuguqulwa kwe-photoluminescence kwama-LED aluhlaza kanye nama-phosphor aluhlaza ukuze ukhiphe ukukhanya okuluhlaza.Le ndlela ingathola ukukhanya okuluhlaza okukhanyayo okusebenza kahle kakhulu, okungase kufinyelelwe ngokusobala ukusebenza kahle kokukhanya kunokukhanya okumhlophe kwamanje.Okokukhanya okuluhlaza okungazenzeki.Ayikho inkinga ngokukhanyisa.Umphumela wokukhanya okuluhlaza otholwe yile ndlela ungase ube mkhulu kuno-340 Lm/W, kodwa ngeke udlule u-340 Lm/W ngemva kokuhlanganisa ukukhanya okumhlophe;okwesithathu, qhubeka ucwaninga futhi uthole okwakho okubalulekile kwe-epitaxial, kuphela Ngale ndlela, kukhona inhlansi yethemba lokuthi ngemva kokuthola ukukhanya okuluhlaza okuphakeme kakhulu kuno-340 Lm/w, ukukhanya okumhlophe kuhlanganiswe imibala emithathu eyinhloko ebomvu, ama-LED aluhlaza naluhlaza angase abe phezulu kunomkhawulo wokusebenza kahle okhanyayo wama-LED amhlophe we-blue chip angu-340 Lm/W.

3. I-Ultraviolet LEDi-chip + i-phosphor yombala emithathu eyinhloko ikhipha ukukhanya 

Isici esiyinhloko semvelo sezinhlobo ezimbili ezingenhla zama-LED amhlophe ukusatshalaliswa kwendawo engalingani kokukhanya kanye ne-chromaticity.Ukukhanya kwe-ultraviolet akubonakali ngeso lomuntu.Ngakho-ke, ngemva kokuba ukukhanya kwe-ultraviolet kuphuma ku-chip, kudonswa i-phosphor yombala emithathu eyinhloko yongqimba lwe-encapsulation, iguqulelwe ekukhanyeni okumhlophe yi-photoluminescence ye-phosphor, bese ikhishelwa esikhaleni.Lena inzuzo yayo enkulu, njengezibani ze-fluorescent zendabuko, ayinakho ukungalingani kombala wendawo.Kodwa-ke, ukusebenza kahle okungokomfanekiso kokukhanya okumhlophe kwe-ultraviolet chip-type white LED akukwazi ukuba ngaphezu kwevelu yethiyori yokukhanya okumhlophe kohlobo lwe-chip eluhlaza okwesibhakabhaka, ingasaphathwa eyevelu yethiyori yokukhanya okumhlophe kohlobo lwe-RGB.Kodwa-ke, kuphela ngokuthuthukiswa kwamaphosphor amathathu-primary afanelekela ukuvuswa kokukhanya kwe-ultraviolet lapho kungakwazi khona ukuthola ama-LED amhlophe e-ultraviolet aseduze noma aphakeme nakakhulu kunama-LED amabili amhlophe angenhla kulesi sigaba.Ukusondela ekukhanyeni okuluhlaza kwe-ultraviolet kwe-LED, kungenzeka Ubukhulu bokukhanya okumhlophe kwe-LED yamagagasi aphakathi nendawo kanye nohlobo lwe-ultraviolet lwamagagasi amafushane akunakwenzeka.