Video: Dab tsi yog cov khoom ntawm semiconductors ua rau lawv muaj txiaj ntsig hauv cov khoom siv hluav taws xob?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Semiconductors paub tias muaj tej yam tshwj xeeb khoom uas ua rau lawv muaj txiaj ntsig hauv ib khoom siv hluav taws xob . Semiconductors muaj ib tug resistivity siab tshaj ib tug insulator tab sis tsawg tshaj li ib tug conductor. Tsis tas li ntawd, kev ua haujlwm tam sim no Cov khoom ntawm semiconductor hloov thaum lub impurity tsim nyog ntxiv rau nws.
Ib yam li ntawd, yam khoom ntawm semiconductors ua rau lawv muaj txiaj ntsig zoo hauv cov khoom siv hluav taws xob quizlet?
Cov khoom ntawm semiconductors uas ua rau lawv feem ntau pab tau rau kev tsim kho khoom siv hluav taws xob yog lawv khoom tso cai lawv siv los tswj qhov ntws ntawm cov nqi. Atomic particle nrog ib qho hluav taws xob zoo. Yuav ua li cas thiaj li raug nqi? Cov khoom yuav raug them thaum lawv cov atoms nce lossis poob electrons.
Tsis tas li ntawd, cov yam ntxwv ntawm semiconductor yog dab tsi? Semiconductors muaj cov khoom hluav taws xob tshwj xeeb. Ib yam khoom uas ua hluav taws xob hu ua tus neeg xyuas pib, thiab cov khoom uas tsis muaj hluav taws xob hu ua insulator. Semiconductors yog cov khoom uas muaj cov khoom nyob qhov twg ntawm lawv. Cov khoom hluav taws xob tuaj yeem qhia tau los ntawm kev tiv thaiv.
Hais txog qhov no, vim li cas peb siv semiconductor hauv cov khoom siv hluav taws xob?
Vim semiconductors muaj cov qauv atomic tshwj xeeb uas tso cai rau lawv cov kev coj ua kom tswj tau los ntawm kev txhawb nqa nrog hluav taws xob tam sim no, electromagnetic teb, lossis txawm tias lub teeb. Txij li thaum cov hluav taws xob nqa cov nqi tsis zoo, hom siv lead ua no nrog cov hluav taws xob ntxiv yog hu ua N-hom lossis N-doped semiconductor.
Yuav ua li cas ntxiv lwm cov hlau hloov cov khoom ntawm semiconductors?
Ntawm qhov kub thiab txias, ntau ntawm cov semiconductor Cov electrons tuaj yeem dhia qhov sib txawv; thiab nws conductivity nce raws li. Hluav taws xob khoom tuaj yeem yog hloov los ntawm doping ( ntxiv impurities rau cov semiconductor khoom). Qhov no ib yam nkaus, yog ib qho ntawm lawv cov khoom muaj nqis heev.
Pom zoo:
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