I-Graphene inomaleko omnye weeathom zekhabhoni ezicwangciswe kwi-lattice ene-hexagonal. Le nto iguquguquka kakhulu kwaye ineempawu ze-elektroniki ezintle, nto leyo eyenza ukuba ibe nomtsalane kwiindlela ezininzi zokusebenza—ingakumbi izinto ze-elektroniki.
Abaphandi abakhokelwa nguNjingalwazi uChristian Schönenberger ovela kwiSwiss Institute of Nanoscience kunye neSebe leFiziksi kwiYunivesithi yaseBasel bafunde indlela yokulawulaiipropati ze-elektroniki zezinto ngokusebenzisa ukolula oomatshini.Ukuze benze oku, baphuhlise isakhelo apho umaleko we-graphene obhityileyo ngeathom unokolulwa ngendlela elawulwayo ngelixa belinganisa iimpawu zawo ze-elektroniki.
Xa uxinzelelo lusetyenziswa ukusuka ngezantsi, icandelo liya kugoba. Oku kubangela ukuba umaleko we-graphene ofakwe ngaphakathi unwebeke kwaye utshintshe iimpawu zawo zombane.
Iisandwich ezikwishelufu
Oososayensi baqale bavelisa isandwich "yesandwich" enomaleko wegraphene phakathi kwamanqanaba amabini e-boron nitride. Izixhobo ezibonelelwe ngonxibelelwano lombane zisetyenziswa kwi-substrate eguquguqukayo.
Imeko ye-elektroniki etshintshileyoAbaphandi baqale basebenzisa iindlela zokukhanya ukuze balinganise ukolulwa kwegraphene. Emva koko basebenzisa umbane. imilinganiselo yothutho ukuze kufundwe indlela ukuguqulwa kwegraphene okutshintsha ngayo amandla e-electron. imilinganiselo kufuneka yenziwe kwi-minus 269°C ukuze kubonwe utshintsho lwamandla.
Imizobo yamanqanaba e-energy yesixhobo se-graphene engaxinzekanga kunye ne-graphene ehluziweyo (eluhlaza) ye-b kwindawo yokutshaja engathathi cala (CNP). "Umgama phakathi kweenuclei uchaphazela ngokuthe ngqo iimpawu zeemeko ze-elektroniki kwi-graphene," uBaumgartnerzishwankathele iziphumo. "Ukuba ukolula kuyafana, isantya kunye namandla e-electron kuphela anokutshintsha. Utshintsho kwiamandla ngokusisiseko yi-scalar potential eqikelelwe yithiyori, kwaye ngoku sikwazile ukungqina oku ngokusebenzisaiimvavanyo." Kucingeleka ukuba ezi ziphumo ziya kukhokelela ekuphuhlisweni kwee-sensors okanye iintlobo ezintsha zee-transistors. Ukongeza,I-graphene, njengenkqubo yomzekelo wezinye izinto ezinemilinganiselo emibini, iye yaba sisihloko sophando esibalulekileyo kwihlabathi liphela kwikwiminyaka yakutshanje.
Ixesha lokuthumela: Julayi-02-2021
