Video: Lub ntsiab lus ntawm p hom semiconductor yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A p - hom semiconductor yog a hom ntawm semiconductor . A p - hom semiconductor muaj qhov ntau dua li cov electrons. Qhov no tso cai rau cov tam sim no ntws raws cov khoom ntawm lub qhov mus rau qhov tab sis tsuas yog nyob rau hauv ib qho kev taw qhia. Semiconductors feem ntau yog ua los ntawm silicon. Silicon yog ib yam khoom uas muaj plaub electrons nyob rau hauv nws lub plhaub sab nrauv.
Ib yam li ntawd, dab tsi yog p hom semiconductor Muab piv txwv?
Piv txwv ntawm P - Hom Semiconductor Trivalent impurities xws li boron lossis gallium feem ntau siv hauv silicon li doping impurity. Tom qab ntawd silicon doped nrog boron lossis gallium yog qhov zoo meej piv txwv rau a p - hom semiconductor.
Dab tsi yog tus nqi ntawm p hom semiconductor? p - hom . Nyob rau hauv ib tug ntshiab (intrinsic) Si los yog Ge semiconductor , txhua lub nucleus siv nws plaub valence electrons los ua plaub covalent bonds nrog nws cov neeg nyob ze (saib daim duab hauv qab). Txhua ionic core, uas muaj cov nucleus thiab cov electrons uas tsis yog-valent, muaj ib lub vas nqi ntawm +4, thiab nyob ib puag ncig los ntawm 4 valence electrons.
Raws li txoj cai, P hom semiconductor ua haujlwm li cas?
P - hom semiconductors yog tsim los ntawm doping ib qho intrinsic semiconductor nrog cov khoom siv hluav taws xob txais hluav taws xob thaum tsim khoom. Lub sij hawm p - hom hais txog tus nqi zoo ntawm lub qhov. Hauv p - hom semiconductors , qhov yog feem ntau cov cab kuj thiab electrons yog cov neeg tsawg.
Dab tsi yog P hom semiconductor thiab N hom semiconductor?
Cov impurity ntxiv rau hauv p - hom semiconductor muab cov qhov ntxiv hu ua Acceptor atom, whereas hauv - hom semiconductor impurity muab cov electrons ntxiv thiab hu ua Donor atom. Hauv ib p - hom semiconductor , feem ntau cov cab kuj yog qhov, thiab cov neeg nqa khoom tsawg yog cov khoom siv hluav taws xob.
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