Ukufuna ukusebenza kahle okuhlala kukhuphuka ekuguquleni amandla elanga kuholele ekuhloleni okungaphezu kwamaseli elanga asuselwa ku-silicon-based pn junction. I-avenue eyodwa ethembisayo ilele kumaseli elanga e-Schottky diode, enikeza indlela eyingqayizivele yokumunca ukukhanya nokukhiqiza ugesi.
Ukuqonda Okuyisisekelo
Amaseli elanga endabuko ancike ekuhlanganeni kwe-pn, lapho kuhlangana khona isemiconductor eshajiwe (p-type) kanye ne-negatively charge (n-type). Ngokuphambene, amaseli elanga e-Schottky diode asebenzisa i-metal-semiconductor junction. Lokhu kudala umgoqo we-Schottky, owakhiwe amazinga ahlukene wamandla phakathi kwensimbi ne-semiconductor. Ukukhanya okushaya ingqamuzana kujabulisa ama-electron, okuwavumela ukuba agxume lesi sivimbelo futhi abe nengxenye kumsinga kagesi.
Izinzuzo zeSchottky Diode Solar Cells
Amaseli elanga e-Schottky diode anikeza izinzuzo ezimbalwa ezingaba khona ngaphezu kwamaseli e-pn junction wendabuko:
Ukukhiqiza Okungabizi kakhulu: Amaseli e-Schottky ngokuvamile alula ukwenziwa uma kuqhathaniswa namaseli ahlanganayo we-pn, okungenzeka aholele ezindlekweni zokukhiqiza eziphansi.
Ukucupha Ukukhanya Okuthuthukisiwe: Ukuthintana kwensimbi kumaseli e-Schottky kungathuthukisa ukucupha ukukhanya ngaphakathi kweseli, okuvumela ukumuncwa kokukhanya okusebenza kahle kakhulu.
Ezokuthutha Ezisheshayo: Umgoqo we-Schottky ungasiza ukunyakaza okusheshayo kwama-electron akhiqizwe isithombe, okungase kukhulise ukusebenza kahle kokuguqulwa.
Ukuhlola Okubalulekile Kwamaseli elanga e-Schottky
Abacwaningi bahlola ngenkuthalo izinto ezahlukahlukene ezizosetshenziswa kumaseli elanga e-Schottky:
I-Cadmium Selenide (CdSe): Nakuba amaseli e-CdSe Schottky amanje ebonisa ukusebenza kahle okulinganiselwe cishe ku-0.72%, intuthuko kumasu okwakha afana ne-electron-beam lithography inikeza isithembiso sokuthuthukiswa kwesikhathi esizayo.
I-Nickel Oxide (NiO): I-NiO isebenza njengento ethembisayo yohlobo lwe-p kumaseli e-Schottky, ifinyelela ukusebenza kahle okungafika kokungu-5.2%. Izakhiwo zayo ze-bandgap ezibanzi zithuthukisa ukumuncwa kokukhanya kanye nokusebenza kweseli kukonke.
I-Gallium Arsenide (GaAs): Amaseli e-GaAs Schottky abonise ukusebenza kahle okudlula i-22%. Nokho, ukufeza lokhu kusebenza kudinga isakhiwo esiklanywe ngokucophelela se-metal-insulator-semiconductor (MIS) esinongqimba lwe-oxide olulawulwa ngokunembile.
Izinselele kanye Neziqondiso Zesikhathi esizayo
Naphezu kwamandla awo, amaseli elanga e-Schottky diode abhekana nezinselele ezithile:
Ukuhlanganisa kabusha: Ukuhlanganiswa kabusha kwamapheya e-electron-hole ngaphakathi kweseli kungakhawulela ukusebenza kahle. Ucwaningo olwengeziwe luyadingeka ukuze kuncishiswe ukulahlekelwa okunjalo.
Ukuthuthukiswa Kokuphakama Komgoqo: Ukuphakama komgoqo we-Schottky kuthinta kakhulu ukusebenza kahle. Ukuthola ibhalansi elungile phakathi komgoqo ophezulu wokuhlukaniswa kweshaji okuphumelelayo kanye nomgoqo ophansi wokulahlekelwa amandla okuncane kubalulekile.
Isiphetho
Amaseli elanga e-Schottky diode anamandla amakhulu okuguqula ukuguqulwa kwamandla elanga. Izindlela zabo zokwenziwa ezilula, amandla okumunca ukukhanya athuthukisiwe, nezindlela zokuthutha ezishaja ngokushesha zibenza ubuchwepheshe obuthembisayo. Njengoba ucwaningo lujula ekuthuthukiseni izinto kanye namasu okunciphisa okuhlanganisa kabusha, singalindela ukubona amaseli elanga e-Schottky diode evela njengomdlali obalulekile esikhathini esizayo sokukhiqizwa kwamandla ahlanzekile.
Isikhathi sokuthumela: Jun-13-2024