Ukufuna okuhlala kunyuka ukusebenza kakuhle ekuguquleni amandla elanga kukhokelele kuphononongo ngaphaya kweeseli zelanga ze-silicon-based pn junction. Enye indlela ethembisayo ilele kwiiseli zelanga zeSchottky diode, ezibonelela ngendlela ekhethekileyo yokufunxa ukukhanya kunye nokuveliswa kombane.
Ukuqonda Izinto Ezisisiseko
Iiseli zelanga zemveli zithembele kwi-pn junction, apho i-semiconductor idibene kakuhle (uhlobo lwe-p) kunye ne-negative charged (n-type). Ngokwahlukileyo, iiseli zelanga ze-Schottky diode zisebenzisa i-metal-semiconductor junction. Oku kudala umqobo we-Schottky, owenziwe ngamanqanaba ahlukeneyo amandla phakathi kwesinyithi kunye ne-semiconductor. Ukukhanya okubetha iseli kuyayivuyisa ielektroni, kuzivumela ukuba zitsibe lo mqobo kwaye zibe negalelo kumbane.
Izinto eziluncedo zeSchottky Diode Solar Cells
Iiseli zelanga zeSchottky diode zibonelela ngeengenelo ezininzi ezinokubakho ngaphezulu kweeseli ze-pn junction zemveli:
Ukuveliswa okuSebenzayo ngeendleko: Iiseli ze-Schottky zilula ukwenza xa kuthelekiswa neeseli ze-pn junction, ezinokukhokelela kwiindleko eziphantsi zemveliso.
Ukunyanzeliswa kokuKhanya okuPhuculayo: Uqhagamshelwano lwetsimbi kwiiseli ze-Schottky lunokuphucula ukubanjwa kokukhanya ngaphakathi kweseli, okuvumela ukukhanya okusebenzayo ngakumbi.
UThutho lokuTshaja ngokukhawuleza: Umqobo we-Schottky unokuququzelela ukuhamba ngokukhawuleza kwee-electron ezenziwe ngeefoto, ezinokunyusa ukuguqulwa kokusebenza kakuhle.
Uphononongo lweMathiriyeli yeeSeli zeSolar zeSchottky
Abaphandi baphonononga izinto ezahlukeneyo zokusetyenziswa kwiiseli zelanga zeSchottky:
I-Cadmium Selenide (CdSe): Ngelixa iiseli ze-CdSe ze-Schottky zangoku zibonisa ukusebenza ngokufanelekileyo malunga ne-0.72%, ukuqhubela phambili kubuchule bokwenza izinto ezifana ne-electron-beam lithography inika isithembiso sokuphuculwa kwexesha elizayo.
I-Nickel Oxide (NiO): I-NiO isebenza njengento ethembisayo yohlobo lwe-p kwiiseli ze-Schottky, ukuphumeza ukusebenza kakuhle ukuya kuthi ga kwi-5.2%. Iimpawu zayo ezibanzi ze-bandgap zongeza ukufunxwa kokukhanya kunye nokusebenza kweeseli ngokubanzi.
I-Gallium Arsenide (i-GaAs): Iiseli ze-GaAs ze-Schottky zibonise ukuphumelela okungaphezulu kwe-22%. Nangona kunjalo, ukufezekisa le ntsebenzo kufuna ubuchwephesha be-metal-insulator-semiconductor (MIS) obunjwe ngobuchule kunye nomgangatho we-oxide olawulwa ngokuchanekileyo.
Imingeni kunye nezikhokelo zexesha elizayo
Ngaphandle kokukwazi kwabo, iiseli zelanga ze-Schottky diode zijongene nemingeni ethile:
Ukudityaniswa kwakhona: Ukudityaniswa kwakhona kwezibini ze-electron-hole ngaphakathi kweseli kunokunciphisa ukusebenza kakuhle. Uphando olongezelelweyo luyafuneka ukunciphisa ilahleko enjalo.
Umqobo woMda woPhuculo: Ukuphakama komqobo weSchottky kuchaphazela kakhulu ukusebenza kakuhle. Ukufumana ibhalansi efanelekileyo phakathi komqobo ophezulu wokwahlula intlawulo ngokufanelekileyo kunye nomqobo ophantsi wokulahlekelwa kwamandla amancinci kubalulekile.
Ukuqukumbela
Iiseli zelanga zeSchottky diode zibambe amandla amakhulu okuguqula uguqulo lwamandla elanga. Iindlela zabo zokuyila ezilula, ukukwazi ukufunxa ukukhanya, kunye neendlela zothutho ezikhawulezayo zothutho zibenza babe bubuchwepheshe obuthembisayo. Njengoko uphando lungena nzulu ekuphuculweni kwezinto kunye nezicwangciso zokunciphisa kwakhona, sinokulindela ukubona iiseli zelanga ze-Schottky diode zivela njengomdlali obalulekileyo kwikamva lokuvelisa amandla acocekileyo.
Ixesha lokuposa: Jun-13-2024