Wige amateka yamatara ya LED

Mu myaka ya za 60 z'ikinyejana gishize, abakozi ba siyansi n'ikoranabuhanga bakoresheje ihame rya semiconductor PN ihuza luminescence kugira ngo bateze imbere diode itanga urumuri.LED yateye imbere icyo gihe yakoresheje GaASP, ibara ryayo rimurika ni umutuku.Nyuma yimyaka hafi 30 yiterambere, LED abantu bose bamenyereye yashoboye gusohora umutuku, orange, umuhondo, icyatsi, ubururu nandi matara yamabara.Nyamara, LED yera yo kumurika yakozwe nyuma ya 2000 gusa, kandi umusomyi amenyeshwa LED yera yo kumurika.Inkomoko yambere ya LED yumucyo ikozwe muri semiconductor PN ihuza luminescence ihame ryasohotse muntangiriro ya 60 yikinyejana cya 20.

Ibikoresho byakoreshwaga muri kiriya gihe byari GaAsP, byaka umutuku (λp = 650nm), naho kuri moteri ya mA 20, flux flux yari ibihumbi bike gusa bya lumens, kandi imikorere yumucyo ihwanye na 0.1 lumens kuri watt .Mu myaka ya za 70 rwagati, ibintu Muri na N byatangijwe kugirango LED zitange urumuri rwatsi (λp = 555nm), urumuri rwumuhondo (λp = 590nm) n’umucyo wa orange (λp = 610nm), kandi urumuri narwo rwongerewe kugera kuri 1 lumen / watt.Mu ntangiriro ya za 80, urumuri rwa GaAlAs LED rwagaragaye, bituma urumuri rutukura rwa LED rugera kuri lumens 10 kuri watt.Mu ntangiriro ya 90, ibikoresho bibiri bishya, GaAlInP, bitanga urumuri rutukura n’umuhondo, na GaInN itanga urumuri rwatsi nubururu, byatejwe imbere neza, biteza imbere cyane urumuri rwa LED.Mu 2000, LED yakozwe mubyambere yageze ku mucyo wa lumens 100 / watt mu turere dutukura na orange (λp = 615nm), mu gihe LED yakozwe nyuma ishobora kugera kuri lumens 50 / watt mu cyatsi kibisi (λp = 530nm).