1. Bhuruu-LED chip + yero-girinhi phosphor mhando inosanganisira yakawanda-ruvara phosphor derivative mhando

 Iyo yero-yegirini phosphor layer inotora chikamu cheiyochiedza chebhuruuyeChip LED kuti ibudise photoluminescence, uye chimwe chikamu chechiedza chebhuruu kubva ku LED chip chinoparadzirwa kunze kwephosphor layer uye chinosanganiswa nechiedza cheyero-chegirini chinobudiswa nephosphor panzvimbo dzakasiyana-siyana munzvimbo, uye tsvuku, chiedza chegirini nebhuruu chinosanganiswa kuita chiedza chichena;Nenzira iyi, iyo yepamusoro-soro ye theoretical kukosha kwephosphor photoluminescence kutendeuka kwekushanda, iyo imwe yekunze kwehuwandu hwehuwandu hwehuwandu, haingapfuuri 75%;uye chiedza chepamusoro chekubvisa chiedza kubva kune chip chinogona kusvika kusvika 70% chete, saka muchirevo, chiedza chebhuruu chichena Chiedza chepamusoro che LED chinopenya hachizopfuuri 340 Lm / W, uye CREE yakasvika 303Lm / W mumakore mashomanana apfuura.Kana mhinduro dzebvunzo dzakarurama, zvakakodzera kupemberera.

2. Kubatanidzwa kwetsvuku, girini uye bhuruuRGB LEDmhando inosanganisira RGBW-LED mhando, nezvimwewo.

 Iwo matatu emwenje-emitting diodes eR-LED (tsvuku) + G-LED (girinhi) + B- LED (bhuruu) anosanganiswa pamwechete, uye matatu ekutanga mavara ered, girinhi nebhuruu anosanganiswa zvakananga muchadenga kuita chena. chiedza.Kuti ibudise chiedza chichena chepamusoro-soro nenzira iyi, chokutanga, ma LED emarudzi akasiyana-siyana, kunyanya ma LED egirini, anofanira kunge ari emagetsi emwenje, anogona kuonekwa kubva ku "equal energy white light" umo chiedza chegirini chinoratidza. vanenge 69%.Parizvino, kupenya kupenya kwebhuruu uye tsvuku LED kwave kwakanyanya, nemukati quantum efficiencies inodarika 90% uye 95%, zvichiteerana, asi iyo yemukati quantum kunyatsoshanda kwegirinhi LEDs iri kumashure zvakanyanya.Ichi chiitiko chekushomeka kwechiedza chegirini cheGaN-based LEDs chinonzi "green light gap."Chikonzero chikuru ndechekuti maLED akasvibira haana kuwana epitaxial yavo.Iripo phosphorous arsenic nitride nhevedzano zvinhu zvine yakaderera kushanda muyero-yegirini spectrum.Tsvuku kana bhuruu epitaxial zvinhu zvinoshandiswa kugadzira girini LEDs.Pasi pemamiriro ekuderera kwazvino density, nekuti hapana phosphor shanduko yekurasikirwa, yegirini LED ine yakanyanya kupenya inopenya kupfuura yebhuruu + phosphor rudzi rwegirini mwenje.Zvinonzi kushanda kwayo kunopenya kunosvika 291Lm/W pasi pemamiriro e1mA ikozvino.Nekudaro, kudonha kwechiedza chechiedza chegirini chakakonzerwa neDroop mhedzisiro pasi peiyo yakakura ikozvino kwakakosha.Kana huwandu hwemazuva ano huchiwedzera, chiedza chechiedza chinodonha nokukurumidza.Parizvino ye350mA, iko kushanda kwemwenje ndeye 108Lm/W.Pasi pemamiriro e1A, chiedza chakanaka chinodonha.Kusvika ku66Lm/W.

Kune III phosphines, kubuda kwechiedza kune yakasvibira bhendi kwave chipingamupinyi chakakosha kuhurongwa hwezvinhu.Kuchinja kuumbwa kweAlInGaP kuti iite kuti ibudise mwenje wegirinhi pachinzvimbo chetsvuku, orenji kana yero-zvichikonzera kusakwana kwekutakura mutakuri imhaka yekushomeka kwesimba gap reiyo zvinhu system, iyo isingabatanidze inoshanda nemwaranzi yekubatanidza.

Nokudaro, nzira yekuvandudza chiedza chechiedza che LED dzakasvibirira: kune rumwe rutivi, dzidza kuti ungaderedza sei Drop effect pasi pemamiriro ezvinhu aripo epitaxial zvinhu kuti uvandudze kushanda kwechiedza;pane yechipiri, shandisa photoluminescence shanduko yeblue LEDs uye green phosphors kuburitsa girinhi mwenje.Iyi nzira inogona kuwana yakakwira inopenya girini mwenje, iyo inogona ne theoretically kuwana yakakwira inopenya kushanda pane yazvino mwenje chena.Ndechechiedza chegirinhi chisingaerekeri.Hapana dambudziko nemwenje.The green light effect inowanikwa nenzira iyi inogona kuva yakakura kudarika 340 Lm/W, asi haizopfuuri 340 Lm/W mushure mekubatanidza chiedza chichena;chechitatu, ramba uchitsvaga uye uwane yako epitaxial material, chete Nenzira iyi, pane kupenya kwetariro kuti mushure mekuwana chiedza chegirini chakakwirira kudarika 340 Lm/w, chiedza chichena chinosanganiswa nemhando nhatu dzekutanga dzetsvuku, maLED egirinhi nebhuruu anogona kunge akakwira kupfuura kupenya kwemagetsi eblue chip machena maLED e340 Lm/W.

3. Ultraviolet LEDchip + matatu ekutanga mavara phosphors anoburitsa mwenje 

Chikanganiso chikuru chemhando mbiri dziri pamusoro dzema LED machena ndiko kusaenzana kwenzvimbo yekugovera kupenya uye chromaticity.Chiedza che ultraviolet hachioneki neziso remunhu.Naizvozvo, mushure mekunge mwenje we ultraviolet wabuda mu chip, inotorwa neatatu ekutanga color phosphors ye encapsulation layer, inoshandurwa kuita chena mwenje nephotoluminescence yephosphor, yobva yabuditswa munzvimbo.Iyi ndiyo mukana wayo mukuru, kungofanana nemarambi efluorescent echinyakare, haina kusaenzana kwemavara enzvimbo.Nekudaro, iyo theoretical luminous performance ye ultraviolet chip-type chena mwenje LED haigone kunge yakakwira kupfuura kukosha kweiyo yeblue chip-mhando chena mwenje, tisingareve kukosha kweiyo theoretical yeRGB-mhando chena mwenje.Zvisinei, kuburikidza chete nekugadzirwa kwepamusoro-soro-primary phosphors inokodzera ultraviolet chiedza excitation zvinokwanisika kuwana ultraviolet chiedza chechiedza che LEDs ari pedyo kana kutokwira kudarika maviri ari pamusoro apa machena ma LED panguva ino.Iyo iri padyo nebhuruu ultraviolet mwenje LED, mukana Iyo yakakura iyo chena mwenje LED yepakati wave uye pfupi wave ultraviolet mhando haigoneke.