'Blue LED' Yatha? 'Violet LED' Era Yabwera Mwakachetechete

M'mbuyomu, bwalo la buluu la LED limayatsa abambo \u0026 mdash; \u0026 mdash; Shuji Nakamura GaN atapita kumsonkhanowu adawonetsa kusintha kwamphamvu, pogwiritsa ntchito ukadaulo wa LED woyera wa LED utha posachedwa. Zomwe zidayambitsa zokambirana zamakampani. backpfrontp Akatswiri ena ananena kuti kutulukira koyambirira kwa buluu LED ndi kupeza Nobel Prize mu Physics mu 2014 Shuji Nakamura, tsopano anagwetsa kafukufuku wawo, mwina kuchokera kampani yake anayambitsa Soraa chachikulu kukankha wofiirira bwalo LED kuyatsa kufalitsa. (Monga momwe ndinadziwidwira kuti kampaniyo ndi pulofesa ku United States mudzi wa Soraa pamodzi ndi mapulofesa atatu UCSB monga co-founder (co-founder) anakhazikitsa LED venture) backpfrontp koma pali anthu ena mu makampani omwe adathandizira Shuji Nakamura, monga Mphotho ya Nobel asayansi ayenera kukhala ndi miyezo yapamwamba ya makhalidwe abwino ndi khalidwe akatswiri, chifukwa anaona chiyembekezo chachikulu chibakuwa mkulu mphamvu LED magetsi osefukira , adzaika chibakuwa LED makampani kafukufuku ofotokoza. Wang Gaoyang, wotsogolera zinthu zamagetsi ku Hongli Opto-electronics. backpfrontp mulimonse, wakhala wotchuka monga wasayansi, ifenso timakhulupirira kuti iye anapanga chiweruzo ayenera zochokera kumvetsa kwake ndi poyambira kwa buluu LED kaonedwe kakuwoneka koipa, bola ngati pali thandizo lanthanthi, mwachibadwa, ali ndi nzeru. Koma \u0026 lsquo; buluu LED \u0026 rsquo; ayi, violet LED ndi chiyani chomwe Atate amabwezera buluu 1000W magetsi osefukira a \u0026 mdash; \u0026 mdash; Shuji Nakamura backpfrontp Malinga ndi ziwerengero, ubwino wofiirira LED makamaka chifukwa:? High CRI komanso magwiridwe antchito apamwamba kwambiri awiri. backpfrontp pomwe chiwonetsero chazithunzi chamtundu wapamwamba chimawonetsedwa m'njira yotere kuti mupeze kuwala kofiirira kwa LED kudzera mumtundu wofiirira wa LED kumapangitsa phosphor kupeza kuwala kwa buluu, komanso nsonga ya kuwala kwa buluu sikukwera kwambiri, ndipo kuwala kofiirira kwa LED kumatha kutulutsa kuwala kwa buluu. Mafunde owoneka bwino amasiyana ndi kuwala konse mkati mwake, motero mawonekedwe amtundu wapamwamba kwambiri, amatha kukwaniritsa malingaliro ofanana ndi kuwala kwadzuwa koyera. Zikumveka kuti wofiirira LED wofiira kumasulira index R9 makamaka mkulu mtundu womasulira index Ra mpaka 95. backpfrontp ndi wofiirira Mbali ina ya LED \u0026 mdash; \u0026 mdash; Kuwala kowala kwambiri kumawonekera mu mfundo zinayi zotsatirazi: backpfrontp 1), LED yofiirira yogwiritsa ntchito GaN gawo lapansi kupanga, ili pagawo la GaN laminated GaN-based semiconductor kupanga purple LED chip, pansi pa GaN pa GaN mtundu wa GaN LED nyali za khothi la tennis, khalidwe la kristalo. wa GaN-based semiconductor wosanjikiza ndi wokwera, kotero kuti high-violet LED high bay nyali zowala bwino, liwiro ndi mphamvu; backpfrontp 2), tchipisi chofiirira cha LED chokhala ndi mawonekedwe atatu chodziwika bwino Chip cha LED ndi lalikulu, chokhala ndi kuwala kofananira ndi katatu kotulutsa LED kochokera pagawo lotulutsa kuwala kupita kunja kwa chipangizocho (mwachangu wochotsa kuwala) wapamwamba; backpfrontp 3), chipangizo chodziwika bwino cha buluu cha LED chimapangidwa pamtengo wa safiro, semiconductor yochokera ku GaN ndi ma latisi osiyanasiyana a safiro, chifukwa chake amakhala ndi zolakwika za crystalline zomwe zimadziwika kuti dislocations, ndipo kugwiritsa ntchito gawo lapansi la GaN sikuli konse kusiyana mu lattice. zokhazikika zilipo, ndizovuta crystallization zolakwika, poyerekeza ndi safiro gawo lapansi mankhwala, dislocation kachulukidwe akhoza kukhala pafupifupi 1/1000; backpfrontp 4), kuwala kowala sikophweka kugwetsa (kugwetsa) mavuto violet LED chip. Kuwala kowoneka bwino kumachepetsedwa kuti apititse patsogolo mphamvu yotulutsa mpweya wowonjezera kachulukidwe kakali pano, kuwala kowala kumachepa chifukwa cha zochitikazo, komanso kuwongolera kuwala kwa kukhalapo kwa vuto lalikulu, komanso kukweza kwamtundu wa crystalline GaN pa GaN-based. zopangidwa, ndi zinthu za safiro gawo lapansi poyerekeza ndi kuchepa kwa dzuwa kuwala si kophweka kuchitika. Nthawi zambiri, zogulitsa poyerekeza ndi gawo lapansi la safiro, zinthu za GaN zagawo laling'ono zomwe zilipo tsopano zitha kuonjezedwa mpaka 5 mpaka 10. backpfrontp yofiirira yoyera kutembenuka kwamphamvu kwambiri, kugawa bwino kwa mawonekedwe, mtundu wopereka index ndi wabwino, pakusunga mphamvu, kuwongolera kuwala ndikofunikira. Ngakhale mitengo yamakono yamakono ndi zotsatira zake, komanso osati otchuka, koma ubwino ndi woonekeratu. Wang Gaoyang akuyembekeza kukhala ndi nyali zochitira masewera olimbitsa thupi za violet LED ndi malingaliro abwino. backp Hongli Opto-electronic anapezerapo DUV LED malo amodzi madzi akhoza bwino ziletsa kukula kwa mabakiteriya ndi Wang Gaoyang backpfrontp kumene Hongli Opto-electronic, violet LED mankhwala mzere ntchito chitukuko nawonso pachimake. Hongli Opto-electronic monga zoweta zoweta akhoza DUV LED ma CD ogwira ntchito, osati ali akuya UV LED lalikulu mzere kupanga, komanso kukhazikitsa akatswiri labotale kuyezetsa tizilombo tating'onoting'ono, ndi kwakuya UV LED ntchito kupereka makasitomala ndi zabwino kwambiri. mapulogalamu ndi kutsimikizira pulogalamu, kuthandiza makasitomala kutsimikizira kuthekera kwa pulogalamuyi. backpfrontp Chifukwa chake, timakhulupiriranso kugwiritsa ntchito violet kapena ultraviolet LED excitation RGB mitundu itatu ya phosphor, kuti tipeze ukadaulo wapamwamba wopereka ukadaulo wa LED yoyera, ukadaulo wamakono wa chip wakwezedwa ku dongosolo latsopano la kukula pansi pazimenezi, makampaniwo adzatero. kuchulukira wofiirira LED Kuchulukirachulukira kutchuka. kumbuyo