Nyob rau hauv kev tsis ncaj ncees p-n kev sib tshuam, muaj tsuas yog qhov cuam tshuam sab hauv lub peev xwm, nyob rau sab n yog ntawm qhov muaj peev xwm siab dua thiab p sab yog qhov qis dua.
Yuav ua li cas hauv kev sib tshuam pn tsis ncaj ncees?
Nyob rau hauv ib qho kev tsis sib haum xeeb p-n kev sib tshuam, qhov sib txawv ntawm p- cheeb tsam mus rau n- cheeb tsam vim . (a) dawb electrons hauvn-thaj tsam nyiam lawv. … Nyob rau hauv ib qho kev tsis sib haum xeeb p-n hlws ris, qhov sib txawv ntawm cov neeg nqa khoom thauj thoob plaws qhov kev sib tshuam yuav tshwm sim los ntawm qhov siab dua mus rau qis dua. Yog li teb (c) yog lawm.
nqe lus twg yog qhov tseeb rau kev sib txuas tsis ncaj ncees?
Dab tsi ntawm cov hauv qab no muaj tseeb nyob rau hauv rooj plaub ntawm kev tsis sib haum xeeb p-n junction diode? Nqe lus piav qhia: Ib qhov sib txawv yog tsim nyob thoob plaws cov kev sib tshuam vim kev sib txuas ntawm qhov & electrons.
Txoj kev tsis ncaj ncees yog dab tsi?
Tus kwv yees tau hais tias tsis muaj kev ncaj ncees yog tias nws qhov kev tsis ncaj ncees yog sib npaug rau xoom rau txhua qhov txiaj ntsig ntawm qhov ntsuas θ, lossis sib npaug, yog tias tus nqi xav tau ntawm tus kwv yees sib npaug ntawm qhov parameter.
Thaum pn kev sib tshuam tsis ncaj ncees qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog?
Nyob rau hauv qhov tsis ncaj ncees PN-kho qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog zero, vim tias sib npaug tab sis cov neeg nqa khoom hla hla kev sib tshuam.
