1. Uhlobo lwe-chip ye-LED eluhlaza okwesibhakabhaka + uhlobo lwe-phosphor olutyheli-oluhlaza okwesibhakabhaka oluquka uhlobo lwe-phosphor olunemibala emininzi

 Umaleko we-phosphor otyheli-luhlaza ufunxa inxalenye ye-isibane esiluhlazaye-chip ye-LED ukuvelisa i-photoluminescence, kwaye enye inxalenye yokukhanya okuluhlaza okwesibhakabhaka okuvela kwi-chip ye-LED idluliselwa ngaphandle komaleko we-phosphor kwaye idibane nokukhanya okutyheli-luhlaza okukhutshwa yi-phosphor kwiindawo ezahlukeneyo kwindawo, kwaye ukukhanya okubomvu, okuluhlaza kunye nokwesibhakabhaka kuxutywe ukwenza ukukhanya okumhlophe; Ngale ndlela, ixabiso eliphezulu lethiyori lokuguqulwa kwe-phosphor photoluminescence, enye yeendlela zangaphandle ze-quantum, ayizukudlula i-75%; kwaye izinga eliphezulu lokukhupha ukukhanya kwi-chip linokufikelela kuphela malunga ne-70%, ngoko ke kwithiyori, ukukhanya okumhlophe okuluhlaza okwesibhakabhaka Ukusebenza okuphezulu kwe-LED okukhanyayo akuyi kudlula i-340 Lm/W, kwaye i-CREE ifikelele kwi-303Lm/W kwiminyaka embalwa edlulileyo. Ukuba iziphumo zovavanyo zichanekile, kufanelekile ukubhiyozelwa.

2. Indibaniselwano ebomvu, eluhlaza kunye nebhlowuI-RGB LEDuhlobo luquka uhlobo lwe-RGBW-LED, njl.

 Iidayidi ezintathu ezikhupha ukukhanya ze-R-LED (bomvu) + G-LED (luhlaza) + B- LED (luhlaza okwesibhakabhaka) zidityaniswe kunye, kwaye imibala emithathu ephambili ebomvu, eluhlaza kunye nebhlowu ixutywe ngokuthe ngqo esithubeni ukwenza ukukhanya okumhlophe. Ukuze kuveliswe ukukhanya okumhlophe okusebenzayo kakhulu ngale ndlela, okokuqala, ii-LED zemibala eyahlukeneyo, ingakumbi ii-LED eziluhlaza, kufuneka zibe yimithombo yokukhanya esebenza kakuhle, enokubonwa "kukukhanya okumhlophe okunamandla alinganayo" apho ukukhanya okuluhlaza kubalelwa malunga ne-69%. Okwangoku, ukusebenza okukhanyayo kwee-LED eziluhlaza okwesibhakabhaka nezibomvu kuye kwaba phezulu kakhulu, kunye nokusebenza kwe-quantum yangaphakathi okungaphezulu kwe-90% kunye ne-95%, ngokulandelelana, kodwa ukusebenza kwe-quantum yangaphakathi kwee-LED eziluhlaza kusemva kakhulu. Le meko yokusebenza kokukhanya okuluhlaza okuphantsi kwee-LED ezisekelwe kwi-GaN ibizwa ngokuba "ngumsantsa wokukhanya okuluhlaza." Isizathu esiphambili kukuba ii-LED eziluhlaza azikafumani izinto zazo ze-epitaxial. Izinto ezikhoyo ze-arsenic nitride series zisebenza kakuhle kakhulu kwi-spectrum etyheli-green. Izinto ezibomvu okanye eziluhlaza okwesibhakabhaka ze-epitaxial zisetyenziselwa ukwenza ii-LED eziluhlaza. Phantsi kwemeko yoxinano oluphantsi lwamandla ombane, kuba akukho lahleko yokuguqulwa kwe-phosphor, i-LED eluhlaza inokukhanya okuphezulu kunokukhanya okuluhlaza okotshani kohlobo lwe-blue + phosphor. Kuxelwe ukuba ukusebenza kwayo okukhanyayo kufikelela kwi-291Lm/W phantsi kwemeko yombane we-1mA. Nangona kunjalo, ukwehla kokusebenza kokukhanya okuluhlaza okubangelwa yimpembelelo ye-Droop phantsi kombane omkhulu kubalulekile. Xa uxinano lwamandla ombane lusanda, ukusebenza kokukhanya kwehla ngokukhawuleza. Kwi-current ye-350mA, ukusebenza kokukhanya yi-108Lm/W. Phantsi kwemeko ye-1A, ukusebenza kokukhanya kwehla. Kuye kwi-66Lm/W.

Kwi-III phosphines, ukukhutshwa kokukhanya kwi-green band kube ngumqobo osisiseko kwinkqubo yezinto. Ukutshintsha ukwakheka kwe-AlInGaP ukuze ikhuphe ukukhanya okuluhlaza endaweni yobomvu, i-orenji okanye umthubi—okubangela ukunqongophala kokuthwala okungonelanga kungenxa yomsantsa wamandla ophantsi kwenkqubo yezinto, okukhuphela ngaphandle ukuphinda kusebenze kakuhle kwemitha.

Ngoko ke, indlela yokuphucula ukusebenza kakuhle kokukhanya kwee-LED eziluhlaza: kwelinye icala, funda indlela yokunciphisa isiphumo seDroop phantsi kweemeko zezinto ezikhoyo ze-epitaxial ukuphucula ukusebenza kakuhle kokukhanya; kwelesibini, sebenzisa ukuguqulwa kwe-photoluminescence kwee-LED eziluhlaza okwesibhakabhaka kunye nee-phosphors eziluhlaza ukuze ukhuphe ukukhanya okuluhlaza. Le ndlela inokufumana ukukhanya okuluhlaza okuphezulu okukhanyayo, okunokufezekisa ukusebenza okuphezulu kokukhanya kunokukhanya okumhlophe okwangoku. Kungokokukhanya okuluhlaza okungazenzekeliyo. Akukho ngxaki ngokukhanya. Isiphumo sokukhanya okuluhlaza esifunyenwe ngale ndlela sinokuba ngaphezulu kwe-340 Lm/W, kodwa asisayi kudlula i-340 Lm/W emva kokudibanisa ukukhanya okumhlophe; okwesithathu, qhubeka uphande kwaye ufumane izinto zakho ze-epitaxial, kuphela Ngale ndlela, kukho ithemba lokuba emva kokufumana ukukhanya okuluhlaza okuphezulu kakhulu kune-340 Lm/w, ukukhanya okumhlophe okudityaniswe nemibala emithathu ephambili yee-LED ezibomvu, eziluhlaza neziluhlaza okwesibhakabhaka kunokuba ngaphezulu komda wokusebenza kakuhle kwee-LED ezimhlophe ze-chip eziluhlaza okwesibhakabhaka ze-340 Lm/W.

3. I-Ultraviolet LEDitshiphusi + iiphosphor ezintathu ezinombala ophambili zikhupha ukukhanya 

Isiphene esiphambili kwiintlobo ezimbini ezingentla ze-LED ezimhlophe kukusasazwa okungalinganiyo kokukhanya kunye ne-chromaticity. Ukukhanya kwe-ultraviolet akubonakali liliso lomntu. Ke ngoko, emva kokuba ukukhanya kwe-ultraviolet kuphume kwi-chip, kutsalwa yi-phosphors ezintathu eziphambili zombala we-encapsulation layer, kuguqulwe kube kukukhanya okumhlophe yi-photoluminescence ye-phosphor, kuze kukhutshwe kwindawo. Le yeyona nzuzo yayo inkulu, njengezibane ze-fluorescent zendabuko, ayinayo i-spatial color equality. Nangona kunjalo, ukusebenza kakuhle kokukhanya kwe-ultraviolet chip-type white light LED akunakuba ngaphezulu kwexabiso le-theory lokukhanya okumhlophe kwe-blue chip-type, ingasathethwa ke ngexabiso le-theory lokukhanya okumhlophe kwe-RGB-type. Nangona kunjalo, kuphela ngokuphuhliswa kwe-phosphors ezintathu eziphambili ezifanelekileyo kwi-ultraviolet light apho kunokwenzeka khona ukufumana ii-LEDs ezimhlophe ze-ultraviolet ezikufutshane okanye ezingaphezulu kunee-LEDs ezimbini ezimhlophe ezingentla kweli nqanaba. Okukhona kufutshane ne-blue ultraviolet light LED, okunokwenzeka Ukuba i-LED emhlophe yokukhanya okuphakathi kunye ne-short wave ultraviolet type inkulu akunakwenzeka.