Graphene ya ƙunshi wani yanki guda na ƙwayoyin carbon da aka shirya a cikin layin hexagonal. Wannan kayan yana da sassauƙa sosai kuma yana da kyawawan halaye na lantarki, wanda hakan ya sa ya zama abin jan hankali ga aikace-aikace da yawa - musamman kayan lantarki.
Masu bincike karkashin jagorancin Farfesa Christian Schönenberger daga Cibiyar Nazarin Nano ta Switzerland da kuma Sashen Lissafi na Jami'ar Basel sun yi nazarin yadda ake sarrafa bayanaihalayen lantarki na kayan aiki ta hanyar shimfiɗawa ta inji.Domin yin haka, sun ƙirƙiro wani tsari wanda za a iya shimfiɗa layin graphene mai siririn atomic ta hanyar da aka tsara yayin auna halayensa na lantarki.
Idan aka matsa lamba daga ƙasa, bangaren zai lanƙwasa. Wannan yana sa layin graphene da aka saka ya tsawaita kuma ya canza halayen wutar lantarki.
Sandwiches a kan shiryayye
Masana kimiyya sun fara samar da sandwich mai suna "sanwich" tare da Layer na graphene tsakanin layuka biyu na boron nitride. Ana amfani da sassan da aka samar da haɗin lantarki a kan substrate mai sassauƙa.
An canza yanayin lantarkiDa farko masu binciken sun yi amfani da hanyoyin gani don daidaita mikewar graphene. Sannan suka yi amfani da na'urar lantarki. ma'aunin jigilar kaya don nazarin yadda nakasar graphene ke canza makamashin lantarki. Ana buƙatar a yi ma'auni a ƙasa da 269°C domin ganin canjin kuzari.
Zane-zanen matakin kuzari na na'ura na graphene mara tsari da b graphene mai launi kore a wurin caji mai tsaka tsaki (CNP). "Nisa tsakanin ƙwayoyin halittar yana shafar halayen yanayin lantarki a cikin graphene kai tsaye," in ji BaumgartnerTaƙaita sakamakon. "Idan miƙewa iri ɗaya ce, saurin lantarki da kuzari ne kawai za su iya canzawa. Canjin da ke cikinmakamashi shine ainihin ƙarfin scalar da ka'ida ta annabta, kuma yanzu mun sami damar tabbatar da hakan ta hanyargwaje-gwaje. Ana iya tunanin cewa waɗannan sakamakon za su haifar da ci gaban na'urori masu auna firikwensin ko sabbin nau'ikan transistor. Bugu da ƙari,Graphene, a matsayin tsarin samfuri na sauran kayan aiki masu girma biyu, ya zama muhimmin batu na bincike a duk duniya a'yan shekarun nan.
Lokacin Saƙo: Yuli-02-2021
