Gukonjesha ibikoresho by'ikoranabuhanga bikomeye muri telefoni zigezweho bishobora kuba ikibazo gikomeye. Abashakashatsi bo muri Kaminuza ya King Abdullah y'Ubumenyi n'Ikoranabuhanga bashyizeho uburyo bwihuse kandi bunoze bwo gukora ibikoresho bya karuboni byiza mu gukuraho ubushyuhe buva mu bikoresho by'ikoranabuhanga. Ibi bikoresho bishobora gukoreshwa mu buryo butandukanye, kuva ku byuma bipima gazi kugeza ku mirasire y'izuba.
Ibikoresho byinshi bya elegitoroniki bikoresha firime za grafiti kugira ngo bikore kandi bikureho ubushyuhe buturuka ku bice by'ikoranabuhanga. Nubwo firime ari ubwoko karemano bwa karuboni, gucunga ubushyuhe mu bikoresho by'ikoranabuhanga ni ikintu gikomeye kandi akenshi biterwa no gukoresha firime za grafiti zifite ubunini bwa mikoroni. Gitanjali Deokar, umushakashatsi mu by'inyuma muri laboratwari ya Pedro Costa wayoboye akazi, asobanura agira ati: “Ariko, uburyo bwo gukora izi firime za grafiti hakoreshejwe polimeri nk'ibikoresho fatizo buragoye kandi bukoresha ingufu nyinshi.” Izi firime zikorwa binyuze mu nzira y'intambwe nyinshi isaba ubushyuhe bugera kuri dogere selisiyusi 3.200 kandi ntizishobora gukora firime ntoya kurusha mikoroni nke.
Deokar, Costa na bagenzi babo bashyizeho uburyo bwihuse kandi bukoresha ingufu mu gukora impapuro za grafiti zifite ubugari bwa nanometero 100. Itsinda ryakoresheje uburyo bwitwa chemical vapor deposition (CVD) kugira ngo bakure filime za grafiti zifite ubugari bwa nanometero (NGFs) ku rupapuro rwa nikeli, aho nikeli ihindura methane ishyushye ikaba grafiti ku buso bwayo. Deokar yagize ati: “Twageze kuri NGF mu ntambwe y’ikura rya CVD y’iminota 5 gusa ku bushyuhe bwa dogere selisiyusi 900.”
NGF ishobora gukura ikagera ku buso bwa cm2 55, ikamera ku mpande zombi z'urupapuro. Ishobora gukurwaho ikanimurwa ahandi hantu hatabayeho gukoresha urwego rwo gushyigikira polymer, ibi bikaba ari ngombwa iyo ukoresheje filime za graphene zo mu rwego rumwe.
Itsinda rifatanyije n’inzobere mu gukora mikoroskopi ya elegitoroniki Alessandro Genovese, ryabonye amashusho ya mikoroskopi ya elegitoroniki (TEM) yerekana ibice bya NGF kuri nikeli. Costa yagize ati: “Kureba imikoranire iri hagati ya filime za grafiti na nikeli nikeli ni ikintu kidasanzwe kandi bizatanga ubumenyi bw’inyongera ku mikorere y’izi filime.”
Ubunini bwa NGF buri hagati ya firime za grafiti zifite ubunini bwa mikoroni zigurishwa ku isoko na firime za grafiti zifite urwego rumwe. Costa yagize ati: “NGF yuzuza impapuro za grafiti n’iz’inganda, yongera ku bubiko bwa firime za karuboni zishyizwe ku rwego rumwe.” Urugero, bitewe n’uburyo ihinduka, NGF ishobora gukoreshwa mu gucunga ubushyuhe muri telefoni zigendanwa zigendanwa zigendanwa zitangiye kugaragara ku isoko. Yongeyeho ati: “Ugereranyije na firime za grafiti, guhuza NGF bizaba bihendutse kandi bihamye.”
Ariko, NGF ifite byinshi ikoresha uretse gukwirakwiza ubushyuhe. Ikintu gishimishije cyagaragajwe mu mashusho ya TEM ni uko bimwe mu bice bya NGF ari ibice bike gusa by'ubugari bwa karuboni. Deoka yagize ati: “Igitangaje ni uko kuba hari ibice byinshi bya graphene bituma urumuri rugaragara neza muri filime yose.” Itsinda ry’ubushakashatsi ryatekereje ko NGF itwara urumuri kandi ibonerana ishobora gukoreshwa nk'igice cy'uturemangingo tw'izuba cyangwa nk'igikoresho cyo kumenya mu gutahura umwuka wa azote dioxyde. Costa yagize ati: “Turateganya gushyira NGF mu bikoresho kugira ngo ibashe gukora nk'ibikoresho bikora byinshi.”
Amakuru arambuye: Gitanjali Deokar n'abandi, Ikura ryihuse rya firime za grafiti zifite ubugari bwa nanometero ku rupapuro rwa nikeli rwa wafer hamwe n'isesengura ry'imiterere yazo, Nanotechnology (2020). DOI: 10.1088/1361-6528/aba712
Niba uhuye n'ikosa ry'ikosa, amakosa, cyangwa wifuza gutanga icyifuzo cyo guhindura ibikubiye kuri uru rupapuro, nyamuneka koresha iyi fomu. Ku bibazo rusange, nyamuneka koresha fomu yacu yo kutwandikira. Kugira ngo ubone ibitekerezo rusange, koresha igice cy'ibitekerezo rusange kiri hepfo (kurikiza amabwiriza).
Igitekerezo cyawe ni ingenzi kuri twe. Ariko, kubera ubwinshi bw'ubutumwa, ntabwo dushobora kwemeza igisubizo cyihariye.
Aderesi imeri yawe ikoreshwa gusa mu kubwira abayoherereje imeri. Aderesi yawe cyangwa aderesi y'uwayohererejwe nta kindi kizakoreshwa. Amakuru wanditse azagaragara muri imeri yawe kandi ntazabikwa na Phys.org mu buryo ubwo aribwo bwose.
Akira amakuru mashya ya buri cyumweru cyangwa ya buri munsi mu gasanduku kawe k'ubutumwa. Ushobora kwiyambura igihe icyo ari cyo cyose kandi ntabwo tuzasangiza amakuru yawe abandi bantu.
Dutuma ibikubiye muri iyi porogaramu bigerwaho na buri wese. Tekereza gushyigikira intego ya Science X ukoresheje konti y'igiciro.
Igihe cyo kohereza ubutumwa: Nzeri-05-2024