Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: A photodiode ne mai p<unk>n haduwa ko PIN tsarin. Lokacin da photon na isasshen makamashi ya buga diode, yana haifar da nau'i-nau'i na lantarki. Wannan tsari kuma an san shi da tasirin photoelectric na ciki. Idan sha yana faruwa a cikin yankin raguwa na mahaɗin, ko kuma tsayin watsawa ɗaya daga gare ta, waɗannan masu ɗaukar hoto suna sharewa daga mahaɗin ta hanyar filin lantarki da aka gina a cikin yankin raguwa. Saboda haka ramuka suna motsawa zuwa anode, kuma electrons zuwa cathode, kuma ana samar da photocurrent. Jimlar halin yanzu ta hanyar photodiode shine jimlar halin yanzu mai duhu (yanzu wanda aka samar a cikin rashin haske) da kuma photocurrent, don haka dole ne a rage halin yanzu mai duhu don ƙara girman ƙwarewar na'urar. Don tsari na farko, don rarrabawar bakan da aka bayar, photocurrent yana da daidaituwa daidai da irradiance.  Tambaya: Me ake bukata don buga diode domin ƙirƙirar ma'aurata na lantarki?
photon (hoton)