1. Lub teeb pom kev zoo UVLED: Qhov hluav taws xob tshooj dav dav ntawm PN txuas tau yog ib qho kev thaiv teeb meem. Thaum lub sij hawm dhau los siv qhov sib npaug, qhov teeb meem txo tsawg, thiab feem ntau cov neeg nqa khoom hauv cheeb tsam P thiab N diffuse sib. Txij thaum lub tshuab hluav taws xob muaj ntau dua li qhov muaj qhov muaj me me, ib qho loj ntawm electrons diffuse rau thaj tsam ntawm P, uas yog qhov kev tiv thaiv ntawm cov neeg tsawg tsawg hauv cov cheeb tsam P. Cov electrons recombine nrog rau qhov ntawm qhov chaw band, thiab lub zog tau txais thaum lub sijhawm recombination yog tso tawm raws li lub teeb zog. Qhov no yog lub hauv paus ntawm PN hlawv kev lag luam.
2, UVLED luminous efficiency: feem ntau hu ua tus nqi quantum zoo ntawm cov kev tivthaiv, uas yog cov khoom ntawm tus yees quantum efficiency ntawm cov kev tivthaiv thiab cov extraction efficiency ntawm cov tivthaiv. Kev ua kom zoo tshaj plaws ntawm cov kev tivthaiv yog kev hloov ntawm kev tivthaiv ntawm electro-optic, uas yog kev sib txuas ntawm cov cuab yeej ntawm nws tus kheej (xws li lub tshuab hluav taws xob, qhov tsis xws luag, thiab cov khoom tsis zoo ntawm cov khoom tivthaiv), thiab cov qauv ntawm kev tivthaiv. Qhov kev rho tawm ntawm qhov kev tivthaiv yog hais txog cov nab npawb ntawm photons uas yuav raug ntsuas sab nrauv ntawm kev tivthaiv tom qab cov photons generated hauv kev tivthaiv yog absorbed, refracted, thiab reflected los ntawm cov tivthaiv nws tus kheej. Yog li, qhov tseem ceeb ntawm qhov kev tshaj tawm extraction muaj xws li kev nqus ntawm cov khoom tiv thaiv nws tus kheej, tus geometry ntawm kev tivthaiv, qhov txhuam xyuas qhov txawv ntawm qhov kev tivthaiv thiab cov khoom ntim khoom, thiab cov khoom ntu tawg ntawm cov qauv kev tivthaiv. Cov khoom ntawm tus yees quantum efficiency ntawm cov tivthaiv thiab cov extraction efficiency ntawm cov tivthaiv yog cov nyhuv luminous ntawm tag nrho feem, uas yog tus nqi quantum sab nraud ntawm kev tivthaiv. Kev tiv thaiv thaum ntxov tsim los ntawm kev txhim kho nws tus nqi quantum nrog. Lub hom phiaj yog los txhim kho qhov teeb meem ntawm kev siv lead ua thiab hloov cov qauv siv thaiv qhov sib luag, kom lub zog hluav taws xob tsis yooj yim hloov mus rau hauv thermal lub zog, yog thaum tsis muaj kev txhim kho cov luminous efficiency ntawm UVLED, yog li muab lub tswv yim ntawm 70%. Internal quantum efficiency, tab sis xws li cov quantum efficiency nrog yuav luag ze rau qhov theoretical txwv. Nyob rau hauv xws li txoj kev tshwm sim, nws yog tsis yooj yim sua kom nce tag nrho tus nqi ntawm lub teeb ntawm lub module los ntawm nce ntxiv quantum efficiency ntawm lub module. Yog li, nws yog ib qho kev tshawb fawb tseem ceeb uas yuav los txhim kho cov kev tsim cov extraction ntawm kev tivthaiv. Tam sim no tus qauv yog: qhov hloov ntawm qhov muag pom - NTSIS qauv, qhov roughening tshuab.
3, UVLED cov hluav taws xob hluav taws xob: cov yam ntxwv zoo xws li lub PN hlawv UI curve, qhov kev hloov tsawg tshaj plaws rau pem hauv ntej conduction voltage yuav ua rau muaj kev hloov loj rau pem hauv ntej tam sim no (theem exponential), thim rov qab yog tsawg, voltage. Hauv kev siv, koj yuav tsum xaiv. UVLED rau pem hauv ntej voltage yuav me me nrog nce kub thiab muaj qhov kub tsis zoo coefficient. UVLED siv lub hwj chim thiab ib feem ntawm nws hloov dua siab tshiab rau hauv lub teeb zog, uas yog yam peb xav tau. Tus so yog hloov dua siab tshiab kom sov, uas ua rau lub qhov kub thiab txias kom sawv. Qhov ntau ntawm cov cua sov (lub hwj chim) tawm hauv dej tawm tuaj yeem hais tau.
4, UVLED kho qhov muag: UVLED muab ib nrab qhov dav loj loj rau lub teeb ci, vim hais tias qhov hluav taws xob nruab nrab ntawm hluav taws xob tsawg tsawg dua nrog rau qhov siab ntawm qhov kub siab, vim li ntawd nws lub ncov siab tshaj tawm thaum kub nce, uas yog, hloov ua haujlwm rau xim liab Kub kub + 2 ~ 3A /. UVLED emits ci L thiab mus nraim tam sim no. Raws li qhov tam sim no nce, qhov luminance ntawm lub teeb kuj nce kwv yees li. Tsis tas li ntawd, lub teeb ci ntawm qhov kaj kuj muaj feem xyuam rau qhov kub thiab txias. Thaum lub ambient qhov kub yog siab, qhov txuam yuaj raug txo qis thiab cov luminous siv tsawg dua.
5, UVLED thermal cov yam ntxwv: nyob rau hauv me me tam sim no, qhov kub thiab ntsuas kub siab tsis tau pom tseeb. Yog tias qhov kub ntxhov siab siab, lub wavelength loj ntawm UVLED yuav liab-pauv, qhov ci ntsa iab yuav txo, thiab qhov tsis sib haum thiab sib luag ntawm lub teeb yuav raug dua. Nyob rau hauv kev, qhov kub sawv ntawm cov duab matrix thiab lub vijtsam loj loj muaj ib qhov teebmeem tseem ceeb ntawm kev ntseeg thiab kev ruaj ntseg ntawm LED. Thermal tsim yog ib qho tseemceeb.
6, UVLED lub neej: UVLED qhov haujlwm ntev yuav ua rau kev laus los ntawm lub teeb ploj, tshwj xeeb tshaj yog rau high-power UVLED, teeb meem fade teeb meem loj dua. Thaum ntsuas lub neej ntawm UVLED, nws tsis txaus siv lub teeb ntawm lub teeb ua qhov kawg ntawm lub neej UVLED. Nws yog ntau yam muaj nuj nqes los qhia txog lub neej ntawm LED los ntawm qhov feem pua ntawm lub teeb ntawm lub UVLED, xws li 35%.
7, high-power UVLED pob: tsuas yog xav txog cua sov thiab lub teeb. Nyob rau hauv cov nqe lus ntawm lub cua sov dissipation, tooj liab thermal hau yog siv los txuas rau aluminium-raws li lub dab dej kub, thiab cov laug txha siv yog kev sib txuas ntawm cov tuag thiab lub thermal thermal. Cov cua kub cev no tau muaj txiaj ntsig zoo dua thiab muaj txiaj ntsig zoo. Nyob rau hauv cov nqe lus ntawm lub teeb tso zis, chip flipping technology tau saws, thiab qhov chaw ntawm lub ntsej muag yog ntxiv rau hauv qab ntu thiab sab sab kom pom tau lub zog lub zog, thiaj li tias ntau lub teeb tuaj yeem tau txais.