Innovative iav-Raws liLEDs rau cog kev loj hlob: Tsim, kev ua tau zoo, thiab kev siv ntse
Taw qhia
Nrog rau kev xav tau ntau ntxiv rau kev ua liaj ua teb kom ruaj khov, kev ua liaj ua teb sab hauv tsev thiab kev cog qoob loo hauv tsev cog qoob loo tau txais txiaj ntsig tseem ceeb. Lub teeb-emitting diodes (LEDs) tau tshwm sim los ua lub teeb pom kev zoo raucog kev loj hlobvim lawv lub zog efficiency thiab spectral tunability. Txawm li cas los xij, cov nroj tsuag pakev loj hlob LEDsfeem ntau raug kev txom nyem los ntawm qis spectral txuam nrog cog pigments thiab tsis txaus lub teeb extraction efficiency. Kab lus no tshawb txog tus qauv tsim, kev ua tau zoo, thiab kev siv iav -raws li LEDs nrog gradient refractive index (GRIN) cov qauv, uas hais txog cov kev txwv no zoo.
Kev tsim kho tshiab
Ib txwm siv cov txheej txheem LED encapsulation, xws li phosphor-silicon mixing, feem ntau ua rau tsis zoo thermal stability thiab tsis tshua muaj teeb pom kev zoo. Txhawm rau kov yeej cov teeb meem no, cov kws tshawb fawb tau tsim cov phosphor- hauv - iav (PIG) cov yeeb yaj kiab nrog cov qauv gradient refractive index. Cov GRIN-PIG cov yeeb yaj kiab no txhim kho lub teeb pom kev zoo los ntawm kev txo qis Fresnel kev xav thiab tag nrho cov kev xav sab hauv ntawm cov khoom sib cuam tshuam.
Cov kev tshawb pom tseem ceeb
Liab LEDs nrog Mn⁴⁺-Doped PIG
Siv Monte Carlo simulations, qhov zoo tshaj plaws thickness thiab phosphor concentration rau liab LEDs tau txiav txim siab los ntawm 0.15 hli thiab 0.6 g / cm³, raws li.
Lub fabricated Mn⁴⁺-doped phosphate iav-raws li LED tau nthuav tawm qhov siab tshaj plaws emission ntawm 692 nm, ua tib zoo nrog kev nqus ntawm phytochromes PR thiab PFR.
Lub luminous efficiency mus txog 96.74 lm/W, ho ntau dua li cov tsoos silicone-encapsulated LEDs (59 lm/W) [Page 26, Table 2.1].
Blue LEDs nrog Eu²⁺-Doped PIG
Rau xiav LEDs, qhov pom tsis zoo yog qhov tuab ntawm 0.15 hli thiab phosphor concentration ntawm 0.5 g / cm³.
Lub Eu²⁺-doped fluorophosphate iav-raws li LED tso tawm ntawm 451 nm, sib piv cov nqus peaks ntawm chlorophyll a, b, thiab -carotene.
Lub luminous efficiency ua tiav yog 69.85 lm / W, ua kom pom kev ua tau zoo tshaj plaws rau lub teeb xiav ntxiv [Page 35].
Ntse Dimming System
Lub microcontroller-raws li ntse dimming system tau tsim los siv cov ntaub liab thiabxiav LEDs.
Lub kaw lus suav nrog GY-30 lub teeb sensor, STC89C52 MCU, thiab PWM-tsav LED modules, ua kom lub sijhawm hloov kho lub teeb ci raws li ib puag ncig.
Cov txheej txheem no txo cov kev siv hluav taws xob ntau txog 40% piv rau cov qauv teeb pom kev zoo li qub [Page 45, Fig. 4.12].
Qhov zoo ntawm GRIN-PIG LEDs
Siab Spectral Matching: Lub emission spectra ntawm GRIN-PIGLEDs sib dhosze nrog rau kev nqus profiles ntawm cov nroj tsuag tseem ceeb pigments, txhawb kev photosynthesis thiab kev loj hlob.
Txhim khu kev ua tau zoo: Lub gradient refractive index qauv minimizes photon poob, ua rau ntau dua luminous efficiency.
Thermal stability: Iav-raws li encapsulation ua kom ntev - lub sij hawm cia siab nyob rau hauv siab - qhov kub thiab txias.
Kev txuag hluav taws xob: Lub ntse dimming system optimizes kev siv lub teeb, txo cov kev siv hluav taws xob tsis tsim nyog.
Daim ntawv thov
Cov LEDs siab heev no zoo tagnrho rau:
Vertical farms thiab greenhouses
Cov chaw tshawb fawb tshawb fawb txog cov nroj tsuag physiology
Kev ua liaj ua teb hauv nroog xav tau kev tswj xyuas lub teeb meej
Xaus
Kev sib koom ua ke ntawm GRIN-PIG thev naus laus zis nrog kev tswj hwm ntse sawv cev rau kev nce qib tseem ceeb hauv kev cog qoob loo cog teeb pom kev zoo. Los ntawm kev txhim kho spectral matching thiab lub zog efficiency, cov LEDs muaj ib tug ruaj khov kev daws teeb meem rau niaj hnub ua liaj ua teb xav tau kev pab. Kev ua haujlwm yav tom ntej yuav tsom mus rau kev nthuav dav cov ntaub ntawv ntawm cov zaub mov txawv rau cov nroj tsuag tshwj xeeb thiab theem kev loj hlob.
Cov ntaub ntawv
Wang, B. (2023).Tsim, Kev Ua Haujlwm, thiab Kev Siv Cov iav-Raws li LEDs rau cov teeb pom kev zoo. Master's Thesis, Nanjing University of Posts thiab Telecommunications.
Yun, X., et al. (2022).Phau ntawv Journal of Luminescence, 244, 118724.
Qin, L., et al. (2018).Phau ntawv Journal of Alloys thiab Compounds, 738, 372–378.
Peb qhov kev pabcuam:
1.Koj qhov kev nug ntsig txog peb cov khoom lossis cov nqi yuav teb rau hauv 24 teev.
2.Zoo-cov neeg ua haujlwm tau kawm thiab paub txog los teb txhua yam koj nug ua lus Askiv zoo.
3.OEM & ODM, peb tuaj yeem pab koj tsim thiab muab tso rau hauv cov khoom.
4.Distributoership muaj rau koj tus qauv tsim tshwj xeeb thiab qee qhov peb cov qauv tam sim no.
5.Kev tiv thaiv ntawm koj thaj chaw muag khoom, cov tswv yim ntawm kev tsim thiab tag nrho koj cov ntaub ntawv ntiag tug.
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