Nyob rau hauv chav tsev kub, cov khoom siv semiconductor yog me ntsis ua. Cov khoom siv hluav taws xob ntawm cov khoom siv hluav taws xob tsim cov hauv paus ntawm kev nkag siab tias peb tuaj yeem siv cov ntaub ntawv no li cas hauv cov khoom siv hluav taws xob.
Dab tsi yog cov khoom siv hluav taws xob hauv chav sov?
Nyob rau hauv chav tsev kub, ib qho semiconductor muaj cov electrons dawb txaus kom nws ua tam sim no. Thaum los yog ze rau qhov tsis muaj tseeb ib lub semiconductor coj zoo li lub insulator. Thaum ib qho hluav taws xob tau txais lub zog txaus los koom nrog hauv kev coj ua (yog "dawb"), nws nyob ntawm lub zog siab.
Cov khoom siv semiconductor yog dab tsi?
Dab tsi yog cov khoom siv semiconductor siv tshaj plaws? Cov khoom siv semiconductor feem ntau yog silicon, germanium, thiab gallium arsenide. Ntawm peb, germanium yog ib qho ntawm cov khoom siv semiconductor ntxov tshaj plaws siv.
Dab tsi yog qhov kub ntawm semiconductors ua raws li cov insulators?
Ib lub semiconductor ua zoo li qhov zoo tagnrho insulator ntawm tsis muaj qhov ntsuas kub tsis txausuas yog ntawm xoom kelvin. Nws yog vim hais tias cov dawb electrons nyob rau hauv lub valence band ntawm semiconductors yuav tsis muaj txaus thermal zog los mus kov yeej lub forbidden zog sib txawv ntawm kiag li xoom.
Vim li cas ib lub semiconductor ua raws li cov insulator ntawm qhov kub thiab txias?
Semiconductors yog cov insulators zoo ntawm chav tsev kub vim yuav luag tag nrho cov valence electrons tau koom nrog kev tsim ntawmcovalent daim ntawv cog lus thiab muaj qhov ua tau tsawg heev dawb electrons. Thaum qhov kub thiab txias, lub valence band ntawm ib tug semiconductor yog tag nrho thiab cov conduction band yog tag nrho.
