Ka dibna ka jawaab su'aasha ka dib in luqadda la mid ah sida marinka: Passage: A photodiode waa xidhiidhka p<unk>n ama qaab dhismeedka PIN. Marka photon tamarta ku filan ku dhufan diode ah, waxay abuuraa lammaane electron<unk>hole ah. habkan waxaa sidoo kale loo yaqaanaa saameynta photoelectric gudaha. Haddii nuugista dhacdaa ee gobolka depletion xidhiidhka ee, ama hal dhererka faafinta ka fog, sidayaal kuwan waxaa la saaray ka xidhiidhka by duurka korontada dhisay-in ee gobolka depletion ah. Sidaas godad u guuraan dhinaca anode ah, iyo electrons dhinaca cathode ah, iyo photocurrent ah waxaa soo saaray. guud ee hadda iyada oo photodiode waa wadarta hadda madow (hadda in la soo saaray maqnaanshaha iftiinka) iyo photocurrent ah, sidaas hadda madow waa in la yareeyo si loo yareeyo dareenka ah ee qalabka.
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