1. Uhlobo lwe-chip ye-LED eluhlaza okwesibhakabhaka + uhlobo lwe-phosphor oluphuzi-oluhlaza okwesibhakabhaka oluhlanganisa uhlobo lwe-phosphor olunemibala eminingi

 Ingqimba ye-phosphor ephuzi-eluhlaza imunca ingxenye ye-ukukhanya okuluhlaza okwesibhakabhakaye-chip ye-LED ukukhiqiza i-photoluminescence, kanti enye ingxenye yokukhanya okuluhlaza okwesibhakabhaka okuvela ku-chip ye-LED idluliselwa ngaphandle kwengqimba ye-phosphor futhi ihlangane nokukhanya okuphuzi-oluhlaza okukhishwa yi-phosphor ezindaweni ezahlukene esikhaleni, bese ukukhanya okubomvu, okuluhlaza okwesibhakabhaka nokuluhlaza okwesibhakabhaka kuhlanganiswa ukuze kwakhiwe ukukhanya okumhlophe; Ngale ndlela, inani eliphakeme kakhulu lethiyori lokusebenza kahle kokuguqulwa kwe-phosphor photoluminescence, okungenye yokusebenza kahle kwe-quantum yangaphandle, ngeke kudlule u-75%; futhi izinga eliphezulu lokukhipha ukukhanya kusuka ku-chip lingafinyelela cishe ku-70% kuphela, ngakho-ke ngokombono, ukukhanya okumhlophe okuluhlaza okwesibhakabhaka Ukusebenza kahle okuphezulu kakhulu kokukhanya kwe-LED ngeke kudlule u-340 Lm/W, kanti i-CREE ifinyelele ku-303Lm/W eminyakeni embalwa edlule. Uma imiphumela yokuhlolwa inembile, kufanelekile ukuyigubha.

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

 Ama-diode amathathu akhipha ukukhanya e-R-LED (obomvu) + G-LED (oluhlaza) + B- LED (oluhlaza okwesibhakabhaka) ahlanganiswa ndawonye, ​​​​futhi imibala emithathu eyinhloko ebomvu, eluhlaza okwesibhakabhaka kanye nohlaza okwesibhakabhaka ixutshwa ngqo esikhaleni ukuze kwakhiwe ukukhanya okumhlophe. Ukuze kukhiqizwe ukukhanya okumhlophe okusebenza kahle ngale ndlela, okokuqala, ama-LED emibala ehlukahlukene, ikakhulukazi ama-LED aluhlaza, kumele abe imithombo yokukhanya esebenza kahle kakhulu, okungabonakala "ekukhanyeni okumhlophe okunamandla alinganayo" lapho ukukhanya okuluhlaza kubalelwa cishe ku-69%. Njengamanje, ukusebenza kahle okukhanyayo kwama-LED aluhlaza okwesibhakabhaka nabomvu kube phezulu kakhulu, kanti ukusebenza kahle kwangaphakathi kwe-quantum kudlula u-90% no-95%, ngokulandelana, kodwa ukusebenza kahle kwangaphakathi kwe-quantum kwama-LED aluhlaza kusemuva kakhulu. Lesi simo sokusebenza kahle kokukhanya okuluhlaza okuphansi kwama-LED asekelwe ku-GaN sibizwa ngokuthi "igebe lokukhanya okuluhlaza." Isizathu esiyinhloko ukuthi ama-LED aluhlaza awazange athole izinto zawo ze-epitaxial. Izinto ezikhona ze-phosphorus arsenic nitride series zisebenza kahle kakhulu ku-spectrum ephuzi-luhlaza. Izinto ezibomvu noma eziluhlaza okwesibhakabhaka ze-epitaxial zisetshenziselwa ukwenza ama-LED aluhlaza. Ngaphansi kwesimo sobuningi bamanje obuphansi, ngoba akukho ukulahleka kokuguqulwa kwe-phosphor, i-LED eluhlaza inokukhanya okuphezulu kunokukhanya okuluhlaza okotshani + uhlobo lwe-phosphor. Kubikwa ukuthi ukusebenza kwayo okukhanyayo kufinyelela ku-291Lm/W ngaphansi kwesimo samanje esingu-1mA. Kodwa-ke, ukwehla kokusebenza kokukhanya okuluhlaza okubangelwa umphumela we-Droop ngaphansi kombane omkhulu kubalulekile. Lapho ubuningi bamanje bukhula, ukusebenza kokukhanya kwehla ngokushesha. Kumbane ongu-350mA, ukusebenza kahle kokukhanya kungu-108Lm/W. Ngaphansi kwesimo esingu-1A, ukusebenza kahle kokukhanya kwehla. Ku-66Lm/W.

Kuma-phosphine e-III, ukukhishwa kokukhanya ebhendini eluhlaza kube yisithiyo esiyisisekelo ohlelweni lwezinto ezibonakalayo. Ukushintsha ukwakheka kwe-AlInGaP ukuze kukhiphe ukukhanya okuluhlaza esikhundleni sokubomvu, okusawolintshi noma okuphuzi—okubangela ukulinganiselwa okunganele kokuthwala kungenxa yegebe lamandla eliphansi kakhulu ohlelweni lwezinto ezibonakalayo, elingafaki ukuhlanganiswa kwemisebe okusebenzayo.

Ngakho-ke, indlela yokuthuthukisa ukusebenza kahle kokukhanya kwama-LED aluhlaza: ngakolunye uhlangothi, funda ukuthi unganciphisa kanjani umphumela we-Droop ngaphansi kwezimo zezinto ezikhona ze-epitaxial ukuze uthuthukise ukusebenza kahle kokukhanya; kokwesibili, sebenzisa ukuguqulwa kwe-photoluminescence kwama-LED aluhlaza okwesibhakabhaka nama-phosphor aluhlaza ukuze ukhiphe ukukhanya okuluhlaza. Le ndlela ingathola ukukhanya okuluhlaza okukhanyayo okuphezulu, okungafinyelela ukusebenza kahle okuphezulu kokukhanya kunokukhanya okumhlophe kwamanje. Kungokukhanya okuluhlaza okungazenzekeli. Akukho nkinga ngokukhanya. Umphumela wokukhanya okuluhlaza otholwe ngale ndlela ungase ube ngaphezu kuka-340 Lm/W, kodwa ngeke usadlula u-340 Lm/W ngemva kokuhlanganisa ukukhanya okumhlophe; okwesithathu, qhubeka nokucwaninga futhi uthole izinto zakho ze-epitaxial, kuphela Ngale ndlela, kukhona ukukhanya kwethemba lokuthi ngemuva kokuthola ukukhanya okuluhlaza okuphakeme kakhulu kuno-340 Lm/w, ukukhanya okumhlophe okuhlanganiswe nemibala emithathu eyinhloko yama-LED abomvu, aluhlaza okwesibhakabhaka naluhlaza okwesibhakabhaka kungase kube ngaphezu komkhawulo wokusebenza kahle kokukhanya kwama-LED amhlophe e-chip eluhlaza okwesibhakabhaka angu-340 Lm/W.

3. I-LED ye-Ultravioleti-chip + i-phosphors enemibala emithathu eyinhloko ikhipha ukukhanya 

Iphutha eliyinhloko elingokwemvelo lezinhlobo ezimbili ezingenhla zama-LED amhlophe ukusatshalaliswa okungalingani kwendawo kokukhanya kanye ne-chromaticity. Ukukhanya kwe-ultraviolet akubonakali ngeso lomuntu. Ngakho-ke, ngemva kokuba ukukhanya kwe-ultraviolet kuphume ku-chip, kumuncwa yi-phosphor enemibala emithathu eyinhloko yesendlalelo se-encapsulation, iguqulwe ibe ukukhanya okumhlophe yi-photoluminescence ye-phosphor, bese ikhishwa esikhaleni. Lena inzuzo yayo enkulu, njengezibani ze-fluorescent zendabuko, ayinawo ukungalingani kombala wendawo. Kodwa-ke, ukusebenza kahle kokukhanya kwe-LED yokukhanya okumhlophe kwe-ultraviolet chip akukwazi ukuba phezulu kunenani lokukhanya okumhlophe kwe-blue chip, ingasaphathwa eyokuthi inani lokukhanya okumhlophe kwe-RGB. Kodwa-ke, kuphela ngokuthuthukiswa kwe-phosphor eyinhloko ezintathu esebenza kahle kakhulu efanelekela ukuvuselelwa kokukhanya kwe-ultraviolet lapho kungenziwa khona ukuthola ama-LED okukhanya okumhlophe kwe-ultraviolet aseduze noma aphakeme kunama-LED amabili okukhanya amhlophe angenhla kulesi sigaba. Uma kusondela ku-LED yokukhanya kwe-ultraviolet eluhlaza okwesibhakabhaka, kungenzeka ukuthi i-LED yokukhanya okumhlophe yohlobo lwe-wave ephakathi kanye ne-short wave ultraviolet ayinakwenzeka.