1.Cov khoom tseem ceeb ntawm lub hnub ci hlwb yog semiconductor silicon.
2. Hnub ci cell yog ib hom photoelectric caij uas tuaj yeem hloov lub zog. Nws cov qauv yooj yim yog ua los ntawm p-hom thiab n-hom semiconductors. Cov khoom siv yooj yim tshaj plaws ntawm cov khoom siv hluav taws xob yog "Silicon", uas tsis yog cov khoom siv hluav taws xob, tab sis yog tias cov impurities sib txawv tau doped rau hauv semiconductors, lawv tuaj yeem ua rau p-hom thiab n-hom semiconductors.
3. Tom qab ntawd, p-type semiconductor muaj lub qhov (p-type semiconductor muaj ib qho tsis zoo electron tsawg dua, uas tuaj yeem suav tias yog ib qho txiaj ntsig zoo dua), thiab qhov sib txawv ntawm p-type semiconductor thiab n- hom semiconductor muaj ib qho hluav taws xob dawb ntxiv los tsim kom muaj qhov tam sim no. Yog li ntawd, thaum lub hnub ci, lub teeb lub zog excites lub electrons nyob rau hauv silicon atom, ua rau lub convection ntawm electrons thiab qhov.
4. Cov electrons thiab qhov no yuav raug cuam tshuam los ntawm lub peev xwm built-in, thiab yuav nyiam los ntawm n-hom thiab p-hom semiconductors feem, thiab sib sau ua ke ntawm ob qho kawg. Lub sijhawm no, yog tias sab nraud txuas nrog electrodes los tsim ib lub voj voog, qhov no yog lub hauv paus ntsiab lus ntawm lub hnub ci hluav taws xob tsim hluav taws xob.
