Ososayensi befiziksi eNyuvesi ye-ITMO bathole indlela entsha yokusebenzisa izinto ezisobala kuamaseli elangangenkathi kugcinwa ukusebenza kahle kwazo. Ubuchwepheshe obusha busekelwe ezindleleni zokusebenzisa izidakamizwa, ezishintsha izakhiwo zezinto ngokufaka ukungcola kodwa ngaphandle kokusebenzisa imishini ekhethekile ebizayo.

Imiphumela yalolu cwaningo ishicilelwe ku-ACSAPlied Materials & Interfaces (“Ama-ion-gated small molecule OPV: Interfacial doping of charge collectors and transport layers”).

Enye yezinselele ezithakazelisa kakhulu emandleni elanga ukuthuthukiswa kwezinto ezibonakalayo ezithinta ukukhanya ngefilimu encane. Ifilimu ingasetshenziswa phezu kwamafasitela avamile ukukhiqiza amandla ngaphandle kokuthinta ukubukeka kwesakhiwo. Kodwa ukuthuthukisa amaseli elanga ahlanganisa ukusebenza kahle okuphezulu nokudlulisa ukukhanya okuhle kunzima kakhulu.

Amaseli elanga avamile anefilimu encane anokuxhumana kwensimbi okungabonakali ngemuva okubamba ukukhanya okwengeziwe. Amaseli elanga abonakalayo asebenzisa ama-electrode angemuva adlulisa ukukhanya. Kulesi simo, amanye ama-photon ayalahleka ngokungenakugwenywa njengoba edlula, okonakalisa ukusebenza kwedivayisi. Ngaphezu kwalokho, ukukhiqiza i-electrode yangemuva enezakhiwo ezifanele kungabiza kakhulu,” kusho uPavel Voroshilov, umcwaningi eSikoleni Sefiziksi Nobunjiniyela se-ITMO University.

Inkinga yokusebenza kahle okuphansi ixazululwa ngokusebenzisa i-doping. Kodwa ukuqinisekisa ukuthi ukungcola kusetshenziswa kahle ezintweni kudinga izindlela eziyinkimbinkimbi kanye nemishini ebizayo. Abacwaningi e-ITMO University baphakamise ubuchwepheshe obushibhile bokudala amaphaneli elanga “angabonakali” – obusebenzisa uketshezi lwe-ionic ukwenza izinto zibe yi-doping, okushintsha izakhiwo zezingqimba ezicutshungulwayo.

"Ezivivinyweni zethu, sithathe iseli elincane lelanga elisekelwe kuma-molecule sanamathisela ama-nanotubes kulo. Okulandelayo, safaka ama-nanotubes sisebenzisa isango le-ion. Siphinde sacubungula ungqimba lokuthutha, olunesibopho sokwenza ishaja elivela kungqimba olusebenzayo lifinyelele ngempumelelo ku-electrode. Sakwazi ukwenza lokhu ngaphandle kwegumbi lokuhlanza futhi sisebenza ngaphansi kwezimo ezizungezile. Okwakudingeka sikwenze nje ukulahla uketshezi lwe-ionic bese sisebenzisa i-voltage encane ukukhiqiza ukusebenza okudingekayo." Kunezela uPavel Voroshilov.

Ekuhloleni ubuchwepheshe babo, ososayensi bakwazile ukwandisa kakhulu ukusebenza kahle kwebhethri. Abacwaningi bakholelwa ukuthi ubuchwepheshe obufanayo bungasetshenziswa ukuthuthukisa ukusebenza kwezinye izinhlobo zamaseli elanga. Manje bahlela ukuzama ngezinto ezahlukene nokuthuthukisa ubuchwepheshe bokusebenzisa izidakamizwa ngokwazo.