Xa i-LED isebenza, le miqathango ilandelayo inokwenza ukushisa kwe-junction kunyuke ukuya kumaqondo ahlukeneyo.
1, Kuye kwangqinwa ukuba umda wokusebenza okukhanyayo sesona sizathu siphambili sokunyuka kweisiphambuka LEDubushushu. Okwangoku, ukukhula kwezinto eziphambili kunye neenkqubo zokwenziwa kwecandelo kunokuguqula uninzi lwegalelo lamandla ombaneI-LED ibe ukukhanyaamandla emitha. Nangona kunjalo, ngenxa yokuba izixhobo ze-chip ze-LED zinee-coefficients ezinkulu ze-refractive kunemithombo yeendaba ezijikelezileyo, inxalenye enkulu yeefotoni (> 90%) ezenziwe ngaphakathi kwi-chip ayikwazi ukugqithisa ngokukhawuleza i-interface, kwaye ukubonakaliswa okupheleleyo kuveliswa phakathi kwe-chip kunye ne-interface yemidiya. ibuyela ngaphakathi kwi-chip kwaye ekugqibeleni ifunnwe yimpahla ye-chip okanye i-substrate ngokusebenzisa izibonakaliso ezininzi zangaphakathi, kwaye ibe shushu ngendlela ye-lattice vibration, ekhuthaza ubushushu bokudibanisa ukuba bunyuke.
2, Ekubeni i-PN junction ayinakufezeka ngokugqithisileyo, ukusebenza kakuhle kwenaliti ye-elementi akuyi kufikelela kwi-100%, oko kukuthi, ukongeza kwintlawulo (umngxuma) efakwe kwindawo ye-N kwindawo ye-P, indawo ye-N nayo iyakujova. intlawulo (i-electron) kwindawo ye-P xa i-LED isebenza. Ngokuqhelekileyo, uhlobo lokugqibela lwenaliti yentlawulo aluyi kuvelisa umphumo we-optoelectric, kodwa luya kusetyenziswa ngendlela yokufudumala. Nokuba indawo eluncedo yentlawulo etofiweyo ayikhaphuki yonke, enye ekugqibeleni iya kuba bubushushu xa idityaniswe nokungcola okanye iziphene kwindawo yokuhlangana.
3, Ulwakhiwo olubi lwe-electrode ye-element, izinto ze-window layer substrate okanye indawo yokuhlangana, kunye neglue yesilivere eqhubayo zonke zinemilinganiselo ethile yokuxhathisa. Ezi zixhathiso zibekwe ngokuchaseneyo ukuze zenze uthotho lokumelana neIsiqalelo se-LED. Xa i-current igeleza kwi-junction ye-PN, iya kuhamba kwakhona kula ma-resistors, okubangela ukushisa kwe-Joule, okuya kubangela ukunyuka kweqondo lokushisa kwe-chip okanye ukushisa kwe-junction.
Ixesha lokuposa: Nov-16-2022