Cawv txog rau ntawm kev coj ua hluav taws xob
1. Kev Ntsuas Kub
Kev siv hluav taws xob coj tau zoo sib txheeb nrog qhov ntsuas kub. Lub conductivity ntawm hlau txo nrog nce kub. Qhov hluav taws xob conductivity ntawm semiconductors nce nrog nce qhov kub thiab txias. Nyob rau hauv thaj tsam ntawm qhov ntsuas kub, qhov coj ua tau yog kwv yees ntau rau ntawm qhov ntsuas kub. Txhawm rau los sib piv hluav taws xob kev coj ntawm cov tshuaj ntawm qhov kub sib txawv, qhov ntsuas kub ib txwm siv yuav tsum tau teeb tsa. Txoj kev sib txheeb ntawm kev coj ua thiab qhov kub thiab txias feem ntau tuaj yeem qhia raws li txoj kab nqes ntawm conductivity tiv thaiv sab saud kab kub.
2. Qib zog ntawm doping
Lub doping degree ntawm solid-state semiconductors yuav ua rau muaj kev hloov pauv zoo ntawm kev lag luam hluav taws xob. Nce qib doping yuav ua rau kom qhov kev coj ua zoo. Lub conductivity ntawm kev daws teeb meem yog nyob ntawm kev saib xyuas cov ntsev uas muaj nyob hauv nws, lossis lwm yam tshuaj lom neeg uas yuav ua rau cov khoom hluav taws xob tsis haum. Lub conductivity ntawm tus qauv ntsuas dej yog qhov ntsuas tseem ceeb rau kev ntsuas lub ntsev cov ntsiab lus, cov ntsiab lus ion, thiab cov ntsiab lus tsis huv ntawm dej. Lub purer dej, qhov qis dua conductivity (lub siab dua lub resistivity). Lub conductivity ntawm dej feem ntau kaw nyob rau hauv cov nqe lus ntawm conductivity; conductivity yog qhov conductivity ntawm dej ntawm 25 ° C.
3. Kev Ntshaw Siab
Qee yam tshuaj muaj anisotropic conductivity, uas yuav tsum tau qhia nyob rau hauv 3 X 3 matrix (siv cov ntsiab lus ntawm kev ua lej, thib ob-kev sib luag tensor, feem ntau yog xwm yeem).