1. Mofuta oa chip ea LED e putsoa + mofuta oa phosphor o mosehla-botala ho kenyeletsoa mofuta oa derivative oa phosphor oa mebala e mengata

 Lera la phosphor le mosehla o motala le monya karolo ealeseli le leputsoaea chip ea LED ho hlahisa photoluminescence, 'me karolo e 'ngoe ea leseli le leputsoa le tsoang chip ea LED e fetisoa ka ntle ho lera la phosphor 'me e kopana le leseli le mosehla-botala le hlahisoang ke phosphor libakeng tse fapaneng sebakeng seo, 'me leseli le lefubelu, le letala le leputsoa le kopanngoa ho etsa leseli le lesoeu; Ka tsela ena, boleng bo phahameng ka ho fetisisa ba khopolo-taba ea phetoho ea phosphor photoluminescence, e leng e 'ngoe ea bokhoni ba quantum ba kantle, bo ke ke ba feta 75%; 'me sekhahla se phahameng ka ho fetisisa sa ho ntša leseli ho tsoa chip se ka fihla ho hoo e ka bang 70% feela, kahoo khopolo-taba, leseli le lesoeu le leputsoa Bokhoni bo phahameng ka ho fetisisa ba khanya ea LED bo ke ke ba feta 340 Lm/W, 'me CREE e fihlile ho 303Lm/W lilemong tse 'maloa tse fetileng. Haeba liphetho tsa liteko li nepahetse, hoa lokela ho ketekoa.

2. Motsoako oa bofubelu, botala le boputsoaLED ea RGBmofuta o kenyeletsa mofuta oa RGBW-LED, jj.

 Diode tse tharo tse ntšang khanya tsa R-LED (khubelu) + G-LED (tala) + B- LED (putsoa) li kopantsoe hammoho, 'me mebala e meraro ea mantlha ea bofubelu, botala le boputsoa e kopanngoa ka ho toba sebakeng ho etsa leseli le lesoeu. E le ho hlahisa leseli le lesoeu le sebetsang hantle ka tsela ena, pele, li-LED tsa mebala e fapaneng, haholo-holo li-LED tse tala, li tlameha ho ba mehloli ea khanya e sebetsang hantle, e ka bonoang ho tsoa "leseling le lesoeu la matla a lekanang" leo ho lona leseli le letala le etsang hoo e ka bang 69%. Hona joale, bokhoni bo khanyang ba li-LED tse putsoa le tse khubelu bo bile holimo haholo, ka bokhoni ba ka hare ba quantum bo fetang 90% le 95%, ka ho latellana, empa bokhoni ba ka hare ba quantum ba li-LED tse tala bo saletse morao haholo. Ketsahalo ena ea bokhoni bo tlase ba khanya e tala ba li-LED tse thehiloeng ho GaN e bitsoa "lekhalo la leseli le letala." Lebaka le ka sehloohong ke hore li-LED tse tala ha li so fumane thepa ea tsona ea epitaxial. Lisebelisoa tse teng tsa arsenic nitride tse nang le phosphorus li na le bokhoni bo tlase ho spectrum e mosehla-botala. Lisebelisoa tsa epitaxial tse khubelu kapa tse putsoa li sebelisoa ho etsa li-LED tse tala. Tlas'a boemo ba khatello e tlase ea motlakase, hobane ha ho na tahlehelo ea phetoho ea phosphor, LED e tala e na le katleho e phahameng ea khanya ho feta khanya e putsoa + mofuta oa phosphor. Ho tlalehoa hore katleho ea eona ea khanya e fihla ho 291Lm/W tlas'a boemo ba hona joale ba 1mA. Leha ho le joalo, ho theoha ha katleho ea khanya ea khanya e tala e bakoang ke phello ea Droop tlas'a khatello e kholo ho bohlokoa. Ha khatello ea hona joale e eketseha, katleho ea khanya e theoha kapele. Ha khatello ea khanya e le 350mA, katleho ea khanya ke 108Lm/W. Tlas'a boemo ba 1A, katleho ea khanya e theoha. Ho ea ho 66Lm/W.

Bakeng sa li-phosphine tsa III, ho ntšoa ha leseli le lebanta le letala ho fetohile tšitiso ea mantlha tsamaisong ea thepa. Ho fetola sebopeho sa AlInGaP ho etsa hore e ntše khanya e tala ho e-na le e khubelu, ea lamunu kapa e mosehla—ho bakang khaello e sa lekaneng ea mojari ho bakoa ke lekhalo le tlase la matla la tsamaiso ea thepa, e sa kenyelletseng ho kopana ha mahlaseli a sebetsang hantle.

Ka hona, mokhoa oa ho ntlafatsa katleho ea leseli la li-LED tse tala: ka lehlakoreng le leng, ithute mokhoa oa ho fokotsa phello ea Droop tlas'a maemo a thepa e teng ea epitaxial ho ntlafatsa katleho ea leseli; ka lehlakoreng la bobeli, sebelisa phetoho ea photoluminescence ea li-LED tse putsoa le li-phosphor tse tala ho ntša leseli le letala. Mokhoa ona o ka fumana khanya e tala e nang le bokhoni bo phahameng ba khanya, e ka fihlelang katleho e phahameng ea khanya ho feta khanya e tšoeu ea hona joale. Ke ea khanya e tala e sa iketsahalleng. Ha ho na bothata ka mabone. Phello ea leseli le letala e fumanoang ka mokhoa ona e ka ba kholo ho feta 340 Lm/W, empa e ntse e ke ke ea feta 340 Lm/W kamora ho kopanya leseli le lesoeu; la boraro, tsoela pele ho etsa lipatlisiso le ho fumana thepa ea hau ea epitaxial, feela Ka tsela ena, ho na le leseli le lesoeu le kopantsoeng le mebala e meraro ea mantlha ea li-LED tse khubelu, tse tala le tse putsoa e ka ba holimo ho feta moeli oa katleho ea khanya ea li-LED tse tšoeu tsa chip tse putsoa tsa 340 Lm/W.

3. LED ea mahlaseli a kotsichip + phosphors tse tharo tsa mmala o ka sehloohong li ntša leseli 

Sekoli se seholo sa mefuta e 'meli e ka holimo ea li-LED tse tšoeu ke kabo e sa lekanang ea khanya le chromaticity. Leseli la ultraviolet ha le bonahale ke leihlo la motho. Ka hona, ka mor'a hore leseli la ultraviolet le tsoe chip, le monngoa ke li-phosphor tse tharo tsa mantlha tsa 'mala oa lera la encapsulation, le fetoloa leseli le lesoeu ke photoluminescence ea phosphor, ebe le ntšoa sebakeng. Ena ke molemo oa lona o moholo, joalo ka mabone a tloaelehileng a fluorescent, ha le na ho se leka-lekane ha 'mala oa sebaka. Leha ho le joalo, katleho ea khopolo-taba ea LED ea leseli le lesoeu la mofuta oa ultraviolet chip e ke ke ea ba holimo ho feta boleng ba khopolo-taba ea leseli le lesoeu la mofuta oa blue chip, re se re sa bue ka boleng ba khopolo-taba ea leseli le lesoeu la mofuta oa RGB. Leha ho le joalo, ke ka nts'etsopele ea li-phosphor tse tharo tsa mantlha tse sebetsang hantle tse loketseng ho hlasimolla leseli la ultraviolet feela moo ho ka khonehang ho fumana li-LED tsa leseli le lesoeu la ultraviolet tse haufi kapa tse phahameng ho feta li-LED tse peli tse tšoeu tse ka holimo mohatong ona. Ha leseli la ultraviolet le leputsoa le leputsoa le leputsoa, ​​​​monyetla oa hore LED ea leseli le lesoeu ea mofuta oa maqhubu a mahareng le maqhubu a makhutšoanyane a ultraviolet e kholo ha e khonehe.