Lithium ion roj teeb pob rau hnub ci

Lub hauv paus ntsiab lus ntawm lub hnub ci cell fais fab tiam feem ntau yog raws li cov nyhuv duab ntawm cov teeb meem ntawm semiconductors. Thaum impurities xws li boron thiab phosphorus tau doped rau hauv silicon crystal, ntxiv rau ntawm cov coron ua rau muaj kev txav chaw nyob hauv cov siv lead ua. Tus nqi tau zoo sawv cev ntawm silicon atom, thaum tus nqi tsis zoo sawv cev plaub lub electrons nyob ib puag ncig plaub.

Vim tias lub boron atom muaj peb lub electrons ib puag ncig nws, tsis muaj chaw nyob yog tsim. Qhov kev tsis txaus ntseeg no tsis ruaj khov vim tsis muaj qhov tsis muaj hluav taws xob thiab yooj yim nqus hluav taws xob kom neutralize nws, sib sau ua p}}} hom semiconductor.

Ib yam li ntawd, thaum phosphorus atoms ntxiv, ib qho hluav taws xob tau ua haujlwm vim tias nws muaj tsib lub tshuab hluav taws xob muaj tsib}}} hom semiconductor.

P - Hom semiconductors muaj ntau qhov chaw seem, thaum n - hom semiconductors muaj ntau lub tshuab hluav taws xob muaj ntau electrons. Yog li, thaum p - hom thiab n {4 4}} hom semiconductors tau tsim nyob rau ntawm lub interface, sib tshuam ib qho kev sib tshuam pn.

Thaum P - hom thiab n - Hom semiconductors tau sib xyaw ua ke, ib qho tshwj xeeb cov ntaub ntawv ntawm lub interface ntawm ob lub semiconductors. P -} Hom sab ntawm lub interface yog qhov tsis zoo tau, thaum lub n {4 4}}} hom peem tau raug them. Qhov no yog vim p - Hom semiconductors muaj ntau qhov, thaum n} hom hluav taws xob muaj ntau yam sib txawv. Cov hluav taws xob hauv N LUB TEB CHAWS DEDIAT rau hauv P cheeb tsam P cheeb tsam, thiab qhov nyob hauv PURE PURE diffuse mus rau hauv N Cheeb Tsam. Thaum diffused, ib qho "hluav taws xob hauv hluav taws xob" yog tsim los ntawm N thaj tsam mus rau PAR cheeb tsam, uas tiv thaiv kev sib txawv ntxiv. Thaum sib npaug zos tau mus txog, ib txheej tshwj xeeb nyias nyias yog tsim, tsim qhov muaj peev xwm sib txawv, uas yog PN hlws ris sib tua.