'Blue LED' Isiphelelwe yisikhathi? Inkathi ye-'Violet LED' isifikile ngokuthula

Ngaphambilini, inkundla ye-LED eluhlaza okwesibhakabhaka ikhanyisa ubaba \u0026 mdash; \u0026 mdash; U-Shuji Nakamura GaN uvaliwe lapho ehambele umhlangano wokufundisa uzwakalise uguquko lwamandla, esebenzisa ubuchwepheshe be-LED emhlophe ye-LED obuluhlaza kuzonyamalala maduze noma kamuva. Okwadala ingxoxo eshisayo ngale mboni. i-backpfrontp Abanye abahlaziyi baye baveza ukuthi ukusungulwa kwasekuqaleni kwe-LED eluhlaza okwesibhakabhaka nokuthola uMklomelo KaNobel ku-Physics ngo-2014 u-Shuji Nakamura, manje wachitha ucwaningo lwabo, mhlawumbe ngaphandle kwenkampani yakhe eyasungula i-Soraa main push purple LED stadium lighting publicity. (Ngokwazi kwami ​​​​ngoba le nkampani inguprofesa esigodini sase-United States Soraa kanye noprofesa abathathu UCSB njengomsunguli (co-founder) owasungula i-LED venture) backpfrontp kodwa kukhona abanye abantu embonini abazwakalise ukusekela UShuji Nakamura, njengoMklomelo KaNobel ososayensi kufanele babe nezindinganiso eziphakeme zokuziphatha kanye nokuziphatha kochwepheshe, ngoba wabona amathemba amakhulu ansomi aphezulu izibani zezikhukhula ze-LED , uzobeka izinkampani ezinjalo ezisekelwe ocwaningweni ze-LED. Umqondisi womkhiqizo we-Hongli Opto-electronic u-Wang Gaoyang ushilo. backpfrontp noma kunjalo, sekuyisikhathi eside edumile njengoba usosayensi, sikholelwa futhi ukuthi wenza isahlulelo kufanele kusekelwe ukuqonda kwakhe futhi isiqalo for blue LED yayo nombono look embi, inqobo nje uma kukhona ukwesekwa theory, ngokwemvelo, has rationality. Kodwa \u0026 lsquo; i-LED eluhlaza okwesibhakabhaka \u0026 rsquo; cha, i-violet LED futhi yini uBaba asekela izibani eziluhlaza okwesibhakabhaka ze-1000W LED \u0026 mdash; \u0026 mdash; Shuji Nakamura backpfrontp Ngokwezibalo, izinzuzo ze-LED onsomi ikakhulukazi ngenxa:? I-CRI ephezulu nokusebenza kahle okuphezulu kokukhanya izici ezimbili. i-backpfrontp lapho inkomba ephezulu yokunikeza umbala ibonakala ikakhulukazi ngendlela yokuthola i-LED emhlophe ye-LED ngokusebenzisa i-LED ensomi ijabulisa i-phosphor ukuthola ukukhanya okuluhlaza okwesibhakabhaka, nokuqina kokukhanya okuluhlaza okwesibhakabhaka akuphezulu kakhulu, futhi i-LED ensomi ingakhipha ukukhanya okuluhlaza okwesibhakabhaka. ububanzi be-wavelength obubonakalayo konke ukukhanya ngaphakathi, ngakho-ke inkomba yokunikeza umbala ophakeme kakhulu, ingafinyelela izimiso ezifanayo njengokukhanya kwelanga okumhlophe. Kuyaqondakala ukuthi inkomba enjalo ensomi ye-LED ebomvu yokunikeza i-R9 ikakhulukazi inkomba enikeza umbala ophezulu Ra ifinyelela ku-95. i-backpfrontp ne-purple Esinye isici se-LED \u0026 mdash; \u0026 mdash; ukusebenza kahle okukhazimulayo okuphakeme kubonakala kumaphuzu amane alandelayo: i-backpfrontp 1), i-LED ensomi esebenzisa ukukhiqizwa kwe-GaN substrate, iku-GaN substrate laminated GaN-based semiconductor production chip purple LED chip, ngaphansi kwe-GaN kumalambu enkundla yethenisi e-LED yohlobo lwe-GaN, ikhwalithi yekristalu. ungqimba lwe-semiconductor olusekelwe ku-GaN luphakeme kakhulu, ukuze i-high-violet LED ikhanyise ukukhanya okukhanyayo, isivinini nokusebenza kahle; i-backpfrontp 2), i-LED chips eyisimo esingunxantathu i-chip ye-LED evamile iyisikwele, enokukhanya kwe-chip ye-LED eqhathaniswa ne-triangular ephuma kungqimba ekhipha ukukhanya ngaphandle kokusebenza kahle kwe-chip (ukusebenza kahle kokukhipha ukukhanya) ephakeme; i-backpfrontp 3), i-chip ye-LED evamile eluhlaza okwesibhakabhaka ikhiqizwa ku-sapphire substrate, i-semiconductor esekelwe ku-GaN kanye ne-sapphire ehlukene ye-lattice constants, futhi ngenxa yalokho ijwayele ukukhubazeka okucwebezelayo okwaziwa ngokuthi ama-dislocations, futhi ukusetshenziswa kwe-GaN substrate cishe akukho mehluko ku-lattice. ihlala ikhona, kunzima ukwenza amaphutha e-crystallization, uma kuqhathaniswa nomkhiqizo we-sapphire substrate, ukuminyana kwe-dislocation kungaba cishe ku-1/1000; i-backpfrontp 4), ukusebenza kahle okukhanyayo akulula ukulahla (ukuwisa) izinkinga ze-violet LED chip. Ukusebenza kahle okukhanyayo kuyehla ukuze kuthuthukiswe amandla okukhiphayo akhuphule ukuminyana kwamanje, ukusebenza kahle okukhanyayo kuyehla ngenxa yale nto, kodwa futhi nokuthuthukisa ukugqama kokuba khona kwenkinga enkulu, futhi kukhuphule izinga lekristalu le-GaN ku-GaN-based. imikhiqizo, kanye nemikhiqizo ye-sapphire substrate uma kuqhathaniswa nokwehla kokusebenza kahle okukhanyayo akulula ukwenzeka. Ngokuvamile, imikhiqizo uma iqhathaniswa ne-sapphire substrate, imikhiqizo ye-GaN substrate ukuminyana kwamanje ingakhuphuka ibe izikhathi ezi-5 kuye kweziyi-10. i-backpfrontp purple white light conversion ukusebenza kahle okuphezulu, ukusatshalaliswa kwe-spectral okulinganiselayo, inkomba yokunikeza umbala ilungile uma kuqhathaniswa, ukongiwa kwamandla, ukuthuthukisa ikhwalithi yokukhanya kubalulekile. Nakuba amanani aphezulu wamanje ngomthelela, kodwa futhi awadumile, kodwa inzuzo isobala. U-Wang Gaoyang unethemba lokubamba amalambu ejimu e-violet LED ngesimo sengqondo esihle. i-backp I-Hongli Opto-electronic eyethulwe i-DUV LED static amanzi inganqanda ngempumelelo ukukhula kwamagciwane kanye ne-Wang Gaoyang backpfrontp lapho i-Hongli Opto-electronic, umugqa womkhiqizo we-violet LED womsebenzi wokuthuthukiswa nawo uqhubeka ngokugcwele. I-Hongli Opto-elekthronikhi njengokukhiqizwa kwasekhaya ingaba nebhizinisi lokupakisha le-DUV LED, ayigcini nje ngokuba nomugqa omkhulu wokukhiqiza we-UV LED ojulile, futhi futhi imise owayo ukuhlola kwelabhorethri ye-microbiological, kanye nezicelo ezijulile ze-UV LED ukunikeza amakhasimende okungcono kakhulu. izicelo kanye nokuqinisekiswa kohlelo, ukusiza amakhasimende aqinisekise ukuba nokwenzeka kohlelo. i-backpfrontp Ngakho-ke, sikholelwa nasekusetshenzisweni kwe-violet noma i-ultraviolet LED excitation RGB yemibala emithathu ye-phosphor, ukuthola umbala ophezulu onikeza ubuchwepheshe be-LED emhlophe, ukusebenza kahle kwe-chip kwamanje kuphakanyiselwe ku-oda elisha lobukhulu ngaphansi kwezimo, imboni izokwenza. ngokuya onsomi LED The more and more ethandwa. isipele