Molao-motheo oa LED ea Semiconductor o Hloka ho Utloisoa

Leseli le khanyang-emitting diode Inumgarnet (CE3: yag) kristale e siloa hore e be phofo 'me e kopantsoe le eona ka sekhomaretsi se teteaneng. Ha chip ea LED e hlahisa leseli le leputsoa, ​​​​Blu -ray e 'ngoe e tla fetoloa ke kristale ena e nang le mefuta e mengata ea li-spectrals (e ka bang 580nm bohareng ba spectrum). (Ha e le hantle, YAG ea kristale e le 'ngoe e kopantsoeng CE e nkoa e le e fokolang ho feta phosphorus.) Hobane leseli le mosehla le tla susumetsa li-receptor tse khubelu le tse tala mahlong a hlobotseng, leseli le leputsoa la LED ka boeona le etsa hore e shebahale joaloka leseli le lesoeu. 'Me mmala oa eona o atisa ho bitsoa “Khanya ea khoeli e tšoeu ”. Mokhoa ona oa ho etsa leseli le lesoeu LED o hlahisoa ke Nichiacorporation mme o qalile ho hlahisa leseli le lesoeu la LED ka 1996. If you want to adjust the color of pale yellow light, you can use other rare earth metal 铽 or 钆 to replace the 铈 (CE) incorporated in CE3: yag, and even the way to replace parts or all aluminum in YAG to do it. Ho ipapisitsoe le litšoaneleho tsa sebono sa eona, lintho tse khubelu le tse tala li shebahala li le tlase ho feta mohloli oa leseli o pharaletseng tlas'a khanya ena ea LED. Ho phaella moo, ka lebaka la ho fetoha ha maemo a tlhahiso, mocheso oa 'mala oa sehlahisoa sena se phethiloeng ha o tšoane, ho tloha mosehla o futhumetseng ho ea ho o buluu o batang. Ka hona, ts'ebetsong ea tlhahiso. Mokhoa o mong o mosoeu oa LED o batla o tšoana le lebone la fluorescent. LED e ntšang hoo e batlang e le khanya ea ultraviolet e tla penta ka metsoako e ’meli ea phosphorus, e ’ngoe ke khanya e khubelu le e putsoa, ​​’me e ’ngoe ke khanya e tala. Koporo le aluminium e nang le zinc sulfide (ZNS). Leha ho le joalo, kaha mahlaseli a ultraviolet a ka etsa hore epoxy resin e phatlohe le ho senyeha ha likhomaretsi, tlhahiso e ba thata le ho feta le nako ea bophelo e khutšoanyane. Ha e bapisoa le mokhoa oa pele, e na le ts'ebetso e tlaase 'me e hlahisa mocheso o mongata (hobane STOKESSHIFT ea pele e na le e kholo ea pele), empa molemo ke hore litšobotsi tsa li-spectrum li molemo. Hobane matla a LED a khanya ea UV a phahame, le hoja katleho e batla e le tlaase, khanya e tsoa e tšoana. Mokhoa oa morao-rao oa ho etsa li-LED tse khanyang ha o sa sebelisa 'mele oa leseli la phosphorus. Mokhoa o mocha ke oa ho holisa zinki ka har'a substrate ea zinc -zinc (ZNSE). Ha e buletsoe, sebaka sa eona se sebetsang se tla hlahisa leseli le leputsoa 'me substrate e fetohe mosehla,' me e tla ba leseli le lesoeu ho kopanya.