Ke Lisebelisoa life tse sebelisoang ho UV Led Chip

Joalokaha bohle re tseba, li-ultraviolet light-emitting diode ke li-semiconductors tse ntšang khanya ka bolelele bo itseng ba maqhubu ha khanya e feta ho tsona. Li-LED li tsejoa e le lisebelisoa tsa boemo bo tiileng. Likhamphani tse ngata li etsa li-chips tsa LED tse thehiloeng ho UV bakeng sa lits'ebetso tsa indasteri, lisebelisoa tsa bongaka , lisebelisoa tsa ho thibela likokoana-hloko le tse bolaeang likokoana-hloko, lisebelisoa tsa ho netefatsa litokomane, le tse ling. Ke ka lebaka la substrate ea bona le thepa e sebetsang. E etsa hore li-LED li be pepeneneng, li fumanehe ka theko e tlase, li lokisa motlakase, 'me li fokotsa matla a hlahisoang ke khanya bakeng sa tšebeliso e nepahetseng.

Tataiso ena e felletseng e tla u tsamaisa ka thepa e sebelisitsoeng, e bapise melemo, 'me e hlalose mokhoa oa ho khetha chip e nepahetseng ea LED.

Lisebelisoa tsa mantlha tse sebelisoang ho li-LED tsa UV

Lisebelisoa tsa mantlha tse sebelisetsoang ho etsa ultraviolet LED chip li arotsoe ka li-substrates le lisebelisoa tse sebetsang. Lisebelisoa tse tharo tse latelang tsa mantlha li sebelisoa haholo ho etsa li-chips.

1  Aluminium nitride

Thepa ena ea mantlha e sebelisa UWBG kapa Ultra-Wide Bandgap Technology. Thepa ena e tebileng e hlahisa khanya ka har'a mahlaseli a ultraviolet, 'me lisebelisoa tse kang gallium nitride le silicon carbide li sebelisoa haufi le eona ho eketsa matla a matla.

Sesebelisoa sena se sebetsa ka bolelele bo ka tlase ho 315nm. Li-chips tsa Aluminium Nitride li thusa ka ts'ebetso e nepahetseng ea mocheso le ho ntlafatsa tlhahiso ea motlakase lisebelisoa tsa LED. AIN kapa aluminium nitride e nka sebaka sa BeO kapa beryllium oxide hobane ha e na likotsi tsa bophelo bo botle. E khona ho mamella mocheso o phahameng, 'me ha e na moeli bakeng sa lisebelisoa tsa motlakase le lisebelisoa tse ling.

2  Lisebelisoa tsa AlGaN

Alloy ena ke motsoako oa Aluminium, Gallium, le Nitrogen, e fana ka bolelele ba maqhubu a fihlang ho 400nm. Alloy ena e sebelisetsoang li-chips tsa UV LED haholo-holo e sebelisa Module oa UV-A  Sesebelisoa sena sa alloy se kopantsoeng se na le bolelele bo pharaletseng bo hlahisang khanya ea ultraviolet, e leng se etsang hore e tšoanele lisebelisoa tsa bongaka, li-sensor, moea le. pheko ea metsi , sterilization, joalo-joalo. E boetse e thusa ho ntlafatsa ts'ebetso ea lisebelisoa.

Ka lebaka la thepa ea physico-chemical ea AIGaN, tsoelo-pele e kholo e fihletsoe ho ntlafatsa tlhahiso ea li-chip. Ke thepa ea boleng bo holimo e ntlafatsang katleho ea lisebelisoa tsa UV LED. Li bile li sebelisetsoa ho etsa li-chips tse bonolo, tse bohlale le tse tšoarellang.

3  Substrate

Ntho ena ea mantlha ke li-chips’ motheo, matla, le tšehetso. Karolo ea bohlokoa ka ho fetisisa e sebelisoang bakeng sa li-LED tsa UV ke Sapphire. E hlakile, e fumaneha ka bongata, 'me e fumaneha ka theko e tlase. Ntle le likarolo tsena, substrate ea Sapphire e na le melemo e meng e mengata, joalo ka boleng ba eona bo holimo, thepa e holileng e teng, bokhoni ba eona ba ho mamella mocheso o phahameng, ho hloekisa habonolo, le matla a matla a mochini.

Ho feta moo, Saphire substrate ka har'a lichifi e kopana le litlhoko tse ntseng li eketseha tsa 'maraka o phekolang. Tšireletseho le likarolo tsa ho boloka matla li etsa hore substrate ena e be molemo ka ho fetisisa bakeng sa tšebeliso ea LED. Phetiso e ntle ea wavelength e thusa haholo ka phepelo e nepahetseng ea motlakase le phetiso ea leseli ho pholletsa le chip.

Papiso e Potlakileng ea Lisebelisoa Tsohle tsa Borena

Lisebelisoa tsena tse tharo li fana ka melemo e fapaneng ha li sebelisoa ho li-chips tsa UV. Liindasteri, litsi tsa tlhokomelo ea bophelo bo botle ba bongaka, baahi, liofisi, joalo-joalo, li ka sebelisa lisebelisoa tse entsoeng ka lisebelisoa tsena tsa mantlha 'me tsa fumana melemo e mengata.

U ka Khetha Chip ea LED ea UV joang bakeng sa Kopo ea Hao?

·  Tshebetso:  Ha u khetha lebone la UV, etsa bonnete ba hore le sebetsa hantle ka ho ntša mahlaseli a mahlaseli a kotsi a loketseng mosebetsi o itseng. E ka ba ho phekola kapa ho koala sekheo sebakeng sa hau. U tlameha ho hlahloba chip’s tshebetso ka ho khetha voltage e nepahetseng. Lekola nako e telele le ho lekana ha chip ea UV LED bakeng sa mosebetsi o itseng. E tla thusa ho boloka boleng, ho ntlafatsa ts'ebetso, le ho boloka botsitso ba LED nako e telele.

·  Wavelength: Maqhubu a mangata a sebetsa pakeng tsa 200nm le 400nm. Kgetha chip e nang le wavelength e nepahetseng e le hore e sebetse ka matla a nepahetseng ho ntša mabone a sebetsang hantle ka lisebelisoa. Bolelele bo sebetsang ka ho fetesisa ba li-LED bo pakeng tsa 365nm le 395nm. E bolokehile ebile e na le mahlaseli a fokolang, hape.

·  Litšenyehelo-e sebetsang: Liindasteri tse ngata li sebetsa ka tekanyetso ea lichelete 'me li lebeletse ho fumana li-chips tsa LED tse theko e tlaase. Ka hona, khetha chip e lumellanang hantle le ts'ebeliso ea hau ea mosebetsi. U ka e sebelisa bakeng sa ho phekola resin kapa enke, ho thibela metsi le moea, ho bolaea lipetlele, kapa lipatlisiso tsa botlokotsebe

·  Sehlahisoa sa Leseli: Boemo ba tlhahiso e khanyang ea li-module tsa UV-A, UV-B, le UV-C li tlameha ho hlahlojoa. U tlameha ho khetha li-LED tsa UV ho latela khanya ea tsona, e ka bang bonolo, e bohareng kapa e matla haholo. Haeba u hloka Chip ea LED ea UV bakeng sa ho folisa , o kanna oa hloka ho hong ka LOP e bonolo.

Qetello

Li-chips tsa UV-LED li fokotsa likotsi tse mpe 'me li netefatsa ROI lisebelisoa tsa hau. U ka fumana lihlahisoa tsa boleng bo holimo ho Tianhui , moetsi ea ka sehloohong oa li-chips. Lihlahisoa tsa rona li nepahetse bakeng sa sterilization le disinfection; u ka li sebelisa ho phekola. Re sebelisa theknoloji ea morao-rao ho qapa le ho etsa lihlahisoa tsa rona. Haeba u batla chip ea UV LED e ntle ka ho fetisisa tikolohong eo, ikopanye le litsebi tsa rona ka matšoenyeho a hau. Re tla lokisa litharollo tsa rona ho latela litlhoko tsa hau tse ikhethang tsa khoebo kapa tsa bongaka.