Video: Dab tsi ntawm atom xav tau ua dopant hauv P hom semiconductor?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lwm cov ntaub ntawv yog aluminium, indium (3-valent) thiab arsenic, antimony (5-valent). Cov dopant yog integrated rau hauv lub lattice qauv ntawm lub semiconductor Crystal, tus naj npawb ntawm cov electrons sab nraud txhais cov hom ntawm doping . Cov ntsiab lus nrog 3 valence electrons yog siv rau p - yam doping , 5-valued ntsiab rau n- doping.
Ua li no, P hom semiconductor tsim li cas?
A P - hom semiconductor yog tsim Thaum ib qho me me ntawm trivalent impurity ntxiv rau cov ntshiab Germenium los yog silicon atom siv lead ua. Qhov sib ntxiv ntawm trivalent impurity tsim ib tug loj no. ntawm qhov mus rau lub party crystals. Lub trivalent atom muaj 3 valance electrons thiab daim ntawv covalent bonds nrog cov atom nyob sib ze.
Ib sab saum toj, dab tsi yog dopant hauv semiconductor? Doping yog tus txheej txheem ntawm ntxiv impurities rau intrinsic semiconductors hloov lawv cov khoom. Feem ntau Trivalent thiab Pentavalent ntsiab yog siv los dope Silicon thiab Germanium. Thaum ib tug intrinsic semiconductor yog doped nrog Trivalent impurity nws dhau los ua P-Type semiconductor.
Ib yam li ntawd, nws raug nug, N thiab P hom semiconductors yog dab tsi?
N - hom semiconductors yog tsim los ntawm doping ib qho intrinsic semiconductor nrog rau cov impurities pub dawb. Ib qho tshuaj dopant rau - hom silicon yog phosphorus. 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 thiab n hom khoom?
p-n hlws ris diodes yog tsim los ntawm ob daim nyob ib sab ntawm p - hom thiab n - hom semiconducting cov ntaub ntawv . p - hom thiab n - hom ntaub ntawv tsuas yog semiconductors, xws li silicon (Si) lossis germanium (Ge), nrog atomic impurities; tus hom ntawm impurity tam sim no txiav txim qhov hom ntawm lub semiconductor.
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