Vim li cas selenium yog photoconductor?

Cov txheej txheem:

Vim li cas selenium yog photoconductor?
Vim li cas selenium yog photoconductor?
Anonim

Qee cov crystalline semiconductors, xws li silicon, germanium, lead sulfide, thiab cadmium sulfide, thiab lwm yam semimetal selenium, muaj zog photoconductive. … Vim tias tam sim no tso tseg thaum lub teeb raug tshem tawm, cov ntaub ntawv photoconductive tsim lub hauv paus ntawm cov hluav taws xob tswj lub teeb.

YPuas yog selenium yog photoconductor?

A-Se tau tsim kho tau zoo raws li nws tau siv los ua a photoconductor hauv tshuab luam ntawv thiab tseem nyob rau hauv cov txheej txheem X-ray duab hu ua xeroradiography tau ntau xyoo. Nws yog siv rau hauv nws daim ntawv amorphous, yog li amorphous selenium daim hlau tuaj yeem ua los ntawm evaporation.

Photoconductor ua haujlwm li cas?

Ib tus photoconductor yog hom qub: tsis muaj qhov hluav taws xob conduction nyob ze ntawm qhov kawg ntawm qib valence kom nws yog ib qho insulator. Tab sis nws dhau los ua ib qho conductor thaum raug lub teebvim tias lub teeb tuaj yeem txav mus rau qib valence electrons mus rau hauv qhov khoob khoob ntawm cov hluav taws xob ntau dua.

YPuas yog selenium yog tus neeg xyuas pib lossis insulator?

Selenium yog cov khoom muaj txiaj ntsig zoo-nws yog photoconductor. Ntawd yog, selenium yog ib qho insulator thaum tsaus ntujthiab tus neeg xyuas pib thaum raug teeb.

Vim li cas selenium yog tus neeg xyuas pib hauv lub teeb?

Raws li selenium(Se) tus lej yog 34 muaj 2 ½ spin yog qhov tsis muaj. Yog li, nws feem ntau nws ua raws li photocells uas siv lub zog los ntawm lub hnub raws li lub hnub ci zog raws li tus nqi. Obviously, peb tuaj yeem hais tias nws uaraws li tus neeg xyuas pib hauv lub teeb pom kev zoo thiab insulator hauv qhov tsaus ntuj. Yog li, qhov ntawd dua nws xav tau lub teeb los ua tus coj.

Pom zoo:

Nthuav cov khoom
Puas yog ectopic beats txaus ntshai?
Nyeem ntxiv

Puas yog ectopic beats txaus ntshai?

Zoo li feem ntau ua rau palpitations, ectopic beats yog feem ntau tsis mob thiab tsis txhais hais tias koj muaj mob plawv. Lawv feem ntau yuav tsum tsis muaj kev kho mob tshwj tsis yog tias lawv tshwm sim ntau zaus lossis hnyav heev. Palpitations thiab ectopic beats feem ntau tsis muaj dab tsi txhawj txog.

Ob lub khob hu ua dab tsi?
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Ob lub khob hu ua dab tsi?

ob chav tshuaj yej khob yog consommé lossis bouillon khob uas tus tswv tsev siv los tuav lub teeb khoom noj txom ncauj thaum tshuaj yej tsis puv txaus ua dej haus. 2 khob khob hu li cas? Ob lub khob tau siv los ua "Khov Hlub"

Leej twg yog miriam o callaghan sib yuav?
Nyeem ntxiv

Leej twg yog miriam o callaghan sib yuav?

Miriam O'Callaghan yog tus tshaj tawm xov xwm hauv tebchaws Irish nrog RTÉ. O'Callaghan tau nthuav tawm Prime Time txij li xyoo 1996, thiab nws tus kheej lub caij ntuj sov tham qhia, Hnub Saturday Hmo Ntuj nrog Miriam, txij xyoo 2005 mus ntxiv.