Dab tsi ua rau LED teeb pom kev zoo dua?
Txheej txheem cej luam ntawm LED Teeb pom kev zoo
High efficiency ntawm LEDsstems los ntawm lawv cov khoom siv semiconductor tshwj xeeb thiab cov qauv. Tsis zoo li cov qij incandescent, uas tsim lub teeb los ntawm cua sov ib lub filament, LEDs hloov hluav taws xob ncaj qha mus rau hauv lub teeb los ntawm electroluminescence. Cov txheej txheem no tshem tawm cov hluav taws xob pov tseg uas tshwm sim los ntawm kev tsim hluav taws xob, ua kom lub teeb tsim tau zoo dua.
LEDs yog tsim los ntawm kev sib txuas ob hom semiconductor crystals: ib qho doped nrog 3- cov khoom muaj txiaj ntsig (xws li indium lossis boron) los ua P-hom semiconductor, thiab lwm yam doped nrog 5- cov khoom muaj txiaj ntsig (xws li phosphorus lossis arsenic. Cov txheej txheem doping no tsim ib qho kev sib tshuam pn, uas tsuas yog tso cai rau tam sim no ntws mus rau hauv ib qho kev taw qhia.
Thaum ib qho hluav taws xob tsim nyog siv thoob plaws PN kev sib tshuam, cov hluav taws xob los ntawm N- hom cheeb tsam txav mus rau sau "qhov" hauv P- hom cheeb tsam (lub xeev hu ua kev tsis ncaj ncees rau pem hauv ntej). Qhov no recombination tso tawm lub zog nyob rau hauv daim ntawv ntawm photons, tsim lub teeb. Cov xim ntawm lub teeb emission yog txiav txim los ntawm semiconductor lub zog band sib txawv thiab cov khoom siv doping; Piv txwv li, ntxiv txhuas rau lub gallium arsenide diode ua rau lub teeb liab LED.¹
Cov txiaj ntsig ntawm LED teeb pom kev zoo
LED teeb pom kev zoomuaj ntau qhov zoo uas tau txhawb nqa nws txoj kev txais yuav sai sai thoob plaws ntau daim ntawv thov. Hauv kev tshawb fawb tsis ntev los no, cov kws tshawb fawb los ntawm University of Michigan tau qhia tias LEDs tuaj yeem ua haujlwm tau txog 44% ntau dua li 4-ko taw fluorescent leeg, thiab 18% mus rau 44% ua haujlwm zoo dua li T8 fluorescent teeb.²
LEDs kuj tseem muaj lub neej ntev ntev txog li 25,000 teev -25 zaug ntev dua li cov teeb pom kev zoo ib txwm muaj- txo qis kev hloov pauv thiab kev saib xyuas zoo heev. Lawv cov khoom siv hauv lub xeev tsim kom muaj kev ruaj khov, ua rau lawv tiv taus kev tawg thiab muaj peev xwm tiv taus huab cua ib puag ncig.
Tsis tas li ntawd, LEDs muab qhov ci ci sai sai thiab ntau yam xim xaiv, thiab lawv tau sib xws nrog cov tshuab hluav taws xob qis (suav nrog lub hnub ci zog). Cov cwj pwm no ua rau lawv xaiv qhov zoo tshaj plaws rau kev lag luam thiab sab nraum zoov teeb pom kev zoo.³
Keeb kwm kev loj hlob ntawm LEDs
Kev lag luam teeb pom kev zoo tau nkag mus rau nws qhov kev hloov pauv loj thib peb nrog kev siv dav dav ntawm LEDs, tom qab lub caij nyoog ntawm cov teeb pom kev zoo thiab cov raj fluorescent. Qhov kev hloov pauv no tau ua tiav los ntawm kev nce qib hauv electroluminescence, ib qho tshwm sim thawj zaug pom los ntawm Henry Joseph Round hauv 1907.
Tom qab kev ua tiav suav nrog Oleg Losev qhov kev tsim thawj LED hauv xyoo 1927, tab sis nws yog Nick Holonyak Jr. txoj kev loj hlob ntawm thawj qhov kev pom zoo - spectrum LED ntawm General Electric hauv 1962 uas cim qhov pib ntawm LED kev lag luam.
Thaum xub thawj, LEDs tau txwv los ntawm qhov tsis tshua muaj luminous flux thiab monochromatic lub teeb tso zis, txwv tsis pub lawv siv hauv cov teeb pom kev zoo. Txawm li cas los xij, Shuji Nakamura qhov kev tsim ntawm xiav LED tau hais txog cov kev txwv no los ntawm kev ua kom muaj lub teeb dawb thiab ntau yam xim kub.
Los ntawm xyoo 2000, kev lag luam ntawm cov LEDs dawb tau tsav lawv qhov kev nce siab sai thoob plaws ntau yam kev siv teeb pom kev zoo. Cov qauv no txuas ntxiv mus rau xyoo 2010, txhawb nqa los ntawm kev txhim kho hauv kev ua tau zoo, ci ntsa iab, thiab txo tus nqi. Niaj hnub no, thev naus laus zis txuas ntxiv mus, nrog kev txhim kho txuas ntxiv mus rau kev ua tau zoo, xim zoo, thiab kev siv ntau yam.¹
Tsis ntev los no Kev Tshawb Fawb thiab Kev Txhim Kho hauv LEDs
Overcoming LED Efficiency Droop
Ib txoj kev tshawb fawb luam tawm hauvScience Advancetackles lub sijhawm ntev -kev sib tw ntawm kev ua haujlwm poob qis hauv LED thev naus laus zis- qhov tshwm sim uas qhov ci ntsa iab qis dua li qhov pib, txawm tias cov khoom siv hluav taws xob nce ntxiv.
Pab pawg tshawb fawb tau tsim cov qauv nanoscale LED uas muaj cov zinc oxide fins, uas ua rau muaj kev txhim kho hluav taws xob tam sim no thiab txo qhov cuam tshuam ntawm kev ua haujlwm tsis zoo. Qhov LED siab tshaj no tau ua tiav 100 mus rau 1,000 npaug ntau dua qhov ci thiab tsim tau txog li 20 microwatts ntawm lub zog, piv rau 22 nanowatts feem ntau ua los ntawm cov tsoos submicron- LEDs loj.
Txheej txheem cej luam ntawm LED Teeb pom kev zoo
High efficiency ntawm LEDsstems los ntawm lawv cov khoom siv semiconductor tshwj xeeb thiab cov qauv. Tsis zoo li cov qij incandescent, uas tsim lub teeb los ntawm cua sov ib lub filament, LEDs hloov hluav taws xob ncaj qha mus rau hauv lub teeb los ntawm electroluminescence. Cov txheej txheem no tshem tawm cov hluav taws xob pov tseg uas tshwm sim los ntawm kev tsim hluav taws xob, ua kom lub teeb tsim tau zoo dua.
LEDs yog tsim los ntawm kev sib txuas ob hom semiconductor crystals: ib qho doped nrog 3- cov khoom muaj txiaj ntsig (xws li indium lossis boron) los ua P-hom semiconductor, thiab lwm yam doped nrog 5- cov khoom muaj txiaj ntsig (xws li phosphorus lossis arsenic. Cov txheej txheem doping no tsim ib qho kev sib tshuam pn, uas tsuas yog tso cai rau tam sim no ntws mus rau hauv ib qho kev taw qhia.
Thaum ib qho hluav taws xob tsim nyog siv thoob plaws PN kev sib tshuam, cov hluav taws xob los ntawm N- hom cheeb tsam txav mus rau sau "qhov" hauv P- hom cheeb tsam (lub xeev hu ua kev tsis ncaj ncees rau pem hauv ntej). Qhov no recombination tso tawm lub zog nyob rau hauv daim ntawv ntawm photons, tsim lub teeb. Cov xim ntawm lub teeb emission yog txiav txim los ntawm semiconductor lub zog band sib txawv thiab cov khoom siv doping; Piv txwv li, ntxiv txhuas rau lub gallium arsenide diode ua rau lub teeb liab LED.¹
Cov txiaj ntsig ntawm LED teeb pom kev zoo
LED teeb pom kev zoo muajib tug tswv tsev ntawm qhov zoo uas tau txhawb nws txoj kev txais yuav sai sai thoob plaws ntau yam kev siv. Hauv kev tshawb fawb tsis ntev los no, cov kws tshawb fawb los ntawm University of Michigan tau qhia tias LEDs tuaj yeem ua haujlwm tau txog 44% ntau dua li 4-ko taw fluorescent leeg, thiab 18% mus rau 44% ua haujlwm zoo dua li T8 fluorescent teeb.²
LEDs kuj tseem muaj lub neej ntev ntev txog li 25,000 teev -25 zaug ntev dua li cov teeb pom kev zoo ib txwm muaj- txo qis kev hloov pauv thiab kev saib xyuas zoo heev. Lawv cov khoom siv hauv lub xeev tsim kom muaj kev ruaj khov, ua rau lawv tiv taus kev tawg thiab muaj peev xwm tiv taus huab cua ib puag ncig.
Tsis tas li ntawd, LEDs muab qhov ci ci sai sai thiab ntau yam xim xaiv, thiab lawv tau sib xws nrog cov tshuab hluav taws xob qis (suav nrog lub hnub ci zog). Cov cwj pwm no ua rau lawv xaiv qhov zoo tshaj plaws rau kev lag luam thiab sab nraum zoov teeb pom kev zoo.³
Keeb kwm kev loj hlob ntawm LEDs
Kev lag luam teeb pom kev zoo tau nkag mus rau nws qhov kev hloov pauv loj thib peb nrog kev siv dav dav ntawm LEDs, tom qab lub caij nyoog ntawm cov teeb pom kev zoo thiab cov raj fluorescent. Qhov kev hloov pauv no tau ua tiav los ntawm kev nce qib hauv electroluminescence, ib qho tshwm sim thawj zaug pom los ntawm Henry Joseph Round hauv 1907.
Tom qab kev ua tiav suav nrog Oleg Losev qhov kev tsim thawj LED hauv xyoo 1927, tab sis nws yog Nick Holonyak Jr. txoj kev loj hlob ntawm thawj qhov kev pom zoo - spectrum LED ntawm General Electric hauv 1962 uas cim qhov pib ntawm LED kev lag luam.
Thaum xub thawj, LEDs tau txwv los ntawm qhov tsis tshua muaj luminous flux thiab monochromatic lub teeb tso zis, txwv tsis pub lawv siv hauv cov teeb pom kev zoo. Txawm li cas los xij, Shuji Nakamura qhov kev tsim ntawm xiav LED tau hais txog cov kev txwv no los ntawm kev ua kom muaj lub teeb dawb thiab ntau yam xim kub.
Los ntawm xyoo 2000, kev lag luam ntawm cov LEDs dawb tau tsav lawv qhov kev nce siab sai thoob plaws ntau yam kev siv teeb pom kev zoo. Cov qauv no txuas ntxiv mus rau xyoo 2010, txhawb nqa los ntawm kev txhim kho hauv kev ua tau zoo, ci ntsa iab, thiab txo tus nqi. Niaj hnub no, thev naus laus zis txuas ntxiv mus, nrog kev txhim kho txuas ntxiv mus rau kev ua tau zoo, xim zoo, thiab kev siv ntau yam.¹
Tsis ntev los no Kev Tshawb Fawb thiab Kev Txhim Kho hauv LEDs
Overcoming LED Efficiency Droop
Ib txoj kev tshawb fawb luam tawm hauvScience Advancetackles lub sijhawm ntev -kev sib tw ntawm kev ua haujlwm poob qis hauv LED thev naus laus zis- qhov tshwm sim uas qhov ci ntsa iab qis dua li qhov pib, txawm tias cov khoom siv hluav taws xob nce ntxiv.
Pab pawg tshawb fawb tau tsim cov qauv nanoscale LED uas muaj cov zinc oxide fins, uas ua rau muaj kev txhim kho hluav taws xob tam sim no thiab txo qhov cuam tshuam ntawm kev ua haujlwm tsis zoo. Qhov LED siab tshaj no tau ua tiav 100 mus rau 1,000 npaug ntau dua qhov ci thiab tsim tau txog li 20 microwatts ntawm lub zog, piv rau 22 nanowatts feem ntau ua los ntawm cov tsoos submicron- LEDs loj.
Qhov kev tawg no sawv cev rau kev nce qib lojhauv LED efficiency, muaj peev xwm ua kom muaj kev tsim cov teeb pom kev zoo dua thiab muaj txiaj ntsig zoo rau ntau yam kev siv, suav nrog kev sib txuas lus thev naus laus zis thiab cov kab mob tua kab mob.⁴
Quantum Dot LED Ntse Teeb pom kev zoo
Cov kws tshawb fawb los ntawm University of Cambridge tau tsim lub quantum dot-raws li cov teeb pom kev zoo uas muaj cov xim zoo tshaj plaws thiab kev hloov kho dav dua piv rau cov LEDs ib txwm muaj. Cov kev tshawb pom tau luam tawm hauvNature Communications.
QD-LED system siv ntau cov xim thawj tshaj li tus qauv ntsuab, liab, thiab xiav, tso cai rau kev tsim tawm ntau dua ntawm lub hnub ci ntuj. Nws ua tiav qhov sib txheeb xim kub (CCT) thaj tsam ntawm 2243K (liab liab lub teeb) mus rau 9207K (ci nruab nrab hnub ci) thiab xim rendering Performance index (CRI) ntawm 97-surpassing 80 mus rau 91 CRI ntau yam ntawm cov khoom lag luam ntse tam sim no.
Qhov kev nce qib no tuaj yeem txhim kho qhov pom kev nplij siab thiab lub zog ua haujlwm tau zoo los ntawm kev muab lub teeb pom kev zoo thiab lub teeb pom kev zoo uas haum rau cov neeg siv kev xav tau thiab lub teeb pom kev zoo.⁵
Flexible Organic LED Mimicking Candlelight
Hauv kev tshawb fawb tsis ntev los no luam tawm hauvACS Siv Cov Khoom Siv Hluav Taws Xob, cov kws tshawb fawb tau tsim cov khoom siv hluav taws xob hloov tau yooj yim uas tso tawm lub teeb sov, tswm ciab{{0} zoo li ci ntsa iab thaum txo qis lub teeb xiav- cov khoom uas paub tias cuam tshuam kev pw tsaug zog los ntawm kev tsim cov melatonin.
Qhov no tshiab LEDsiv lub mica thaub qab, uas muab nws yooj thiab durability; nws tuaj yeem tiv taus txog 50,000 khoov yam tsis muaj kev tawg. Kev ntsuam xyuas pom tau tias raug rau lub teeb LED no rau 1.5 teev suppressed melatonin ntau lawm los ntawm tsuas yog 1.6%, nyob rau hauv sib piv rau 29% suppression tshwm sim los ntawm txias -dawb compact fluorescent teeb (CFLs).
Qhov kev txhim kho no muab cov kev daws teeb meem rau kev teeb pom kev hmo ntuj hauv tsev, tsev so, thiab chaw kho mob, qhov chaw xis nyob, pw tsaug zog- teeb pom kev zoo yog qhov tseem ceeb.⁶
Kev sib tw thiab kev txwv ntawm LED teeb pom kev zoo
Txawm hais tias LED teeb pom kev zoo muaj ntau qhov zoo, ntau qhov kev sib tw thiab kev txwv tseem nyob, uas yuav tsum tau hais kom ua kom nws cov txiaj ntsig zoo tshaj plaws.
Ib qho teeb meem tseem ceeb tshwm sim thaum hloov mus rauLED technology. Piv txwv li, xyoo 2013, lub nroog Davis, California, tau tsim ib txoj haujlwm xav tau los hloov 2,600 txoj kev teeb nrog LEDs- tsuas yog ua rau muaj kev cuam tshuam loj rau pej xeem. Cov LEDs tshiab tau ua rau pom kev ci ntsa iab ntau dhau, nkag mus rau hauv tsev ( cuam tshuam rau kev ceev ntiag tug thaum hmo ntuj), thiab hloov lub nroog qhov chaw zoo nkauj hmo ntuj. Txhawm rau daws cov teeb meem no, lub nroog yuav tsum tau kho qhov project kom siv cov xim kub qis dua LEDs, ua rau tus nqi ntxiv ntawm $ 350,000. Cov ntaub ntawv no qhia txog qhov yuav tsum tau ua tib zoo npaj uas sib npaug ntawm kev siv hluav taws xob nrog tib neeg kev nplij siab thiab kev xav zoo nkauj thaum siv LED teeb pom kev ntawm qhov ntsuas.
Lwm qhov kev txwv tseem ceeb yog lub teeb xiav cov ntsiab lus hauv ntau LEDs. Lub teeb xiav paub tias cuam tshuam tib neeg circadian rhythms thiab inhibit melatonin ntau lawm, cuam tshuam tsis zoo rau kev pw tsaug zog zoo. Qhov teeb meem no tau pom nyob thoob plaws Tebchaws Europe, qhov twg qhov kev hloov pauv los ntawm sov so sodium txoj kev teeb kom txias -dawb LEDs tau nce lub teeb xiav, tsis tsuas yog cuam tshuam rau tib neeg kev noj qab haus huv tab sis kuj txo qhov pom ntawm hnub qub (ib qho tshwm sim hu ua lub teeb paug).
Tshaj li tib neeg kev noj qab haus huv,LED teeb pom kev zookev ci ntsa iab tuaj yeem cuam tshuam lub teeb ci ntuj - tsaus ntuj, ua rau cov tsiaj qus raug mob. Teeb pom kev zoo los ntawm LEDs ua rau cov noog tsiv teb tsaws chaw (ua rau lawv tawm ntawm chav kawm) thiab ua rau lub hiav txwv vaub kib hatchlings (uas tso siab rau lub hli mus rau dej hiav txwv), ua rau muaj kev phom sij rau cov tsiaj thiab lawv cov ecosystems.⁷,⁸,⁹
Lub neej yav tom ntej ntawm LED Technology
Txij li nws cov hnub qub,LED teeb pom kev zoo technologytau ua tiav zoo kawg nkaus, xa cov txiaj ntsig zoo hauv kev siv hluav taws xob, kev ua haujlwm ntev, thiab kev siv ntau yam- thiab nws cov kev hloov pauv tsis pom qhov ua kom qeeb.
Cov kev tshawb fawb tam sim no yog tsom rau kev thawb LED kev ua haujlwm kom mus txog nws qhov kev txwv theoretical. Ua tiav qhov no yuav qhib kev txuag hluav taws xob ntxiv thiab txo cov thev naus laus zis ib puag ncig hneev taw, ua rau nws muaj kev xaiv zoo dua rau kev xav tau teeb pom kev zoo thoob ntiaj teb. Tsis tas li ntawd, kev sib koom ua ke ntawm LEDs nrog kev tswj hwm qib siab thiab Is Taws Nem ntawm Yam (IoT) thev naus laus zis yuav tsum hloov pauv kev tswj hwm teeb pom kev zoo: cov kev teeb tsa ntse no yuav ua kom lub zog siv tau zoo los ntawm kev hloov kho rau cov neeg nyob, lub teeb ntuj, thiab cov neeg siv nyiam, thaum tseem ua rau muaj kev hloov kho teeb pom kev zoo rau ntau qhov chaw thiab kev ua ub no.
Raws li kev txhawj xeeb ib puag ncig loj hlob, kev lag luam yuav ua kom muaj zog ntxiv rau cov kev coj ua thiab cov khoom siv kom ruaj khov. Qhov no suav nrog kev tshawb fawb tsis tu ncua rau hauv cov organic thiab biodegradable Cheebtsam rau LEDs, aiming los tsim teeb pom kev zoo daws teeb meem uas tsis tsuas yog lub zog- siv tau zoo tab sis kuj txo qhov cuam tshuam ib puag ncig thoob plaws hauv lawv lub neej tag nrho- los ntawm kev tsim khoom mus rau pov tseg.
Thaum LEDs tau npaj los ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj txiaj ntsig zoo, teeb pom kev zoo thoob ntiaj teb, lawv txoj kev vam meej yav tom ntej yuav nyob ntawm kev daws cov teeb meem tseem ceeb. Qhov no suav nrog kev soj ntsuam nruj me ntsis ntawm lawv qhov ntev -ib puag ncig kev cuam tshuam thiab kev siv cov kev ntsuas kom ntseeg tau tias lawv muaj kev nyab xeeb rau cov tsiaj qus thiab ecosystems- xyuas kom meej tias cov txiaj ntsig ntawmLED technologytxuas mus rau tib neeg lub neej thiab lub ntiaj teb ntuj tsim.¹⁰
Ua ke, peb ua kom nws zoo dua.
Shenzhen Benwei Teeb pom kev zoo Technology Co., Ltd
Txawb/Whatsapp :({0}})18673599565
Email:bwzm15@benweilighting.com
Skype: benweilight88
Web:www.benweilight.com
Ntxiv: F Tsev, Yuanfen Industrial Zone, Longhua, Bao'an District, Shenzhen, Suav
