Ultrathin diamant firime yakozwe muri graphene irashobora gukaza ibikoresho bya elegitoroniki

Graphene isanzwe izwiho gukomera bidasanzwe, nubwo ari atom imwe gusa. Nigute bishobora gukorwa cyane kurushaho? Muguhindura impapuro za diyama, birumvikana. Abashakashatsi bo muri Koreya yepfo ubu bashyizeho uburyo bushya bwo guhindura graphene muri firime ya diyama yoroheje cyane, bitabaye ngombwa ko bakoresha umuvuduko mwinshi.

Graphene, grafite na diyama byose bikozwe mubintu bimwe - karubone - ariko itandukaniro riri hagati yibi bikoresho nuburyo atome ya karubone itunganijwe kandi igahuzwa hamwe. Graphene ni urupapuro rwa karubone rufite atom imwe gusa, hamwe nubusabane bukomeye hagati yabyo. Graphite igizwe nimpapuro za graphene zegeranye hejuru yizindi, hamwe nimigozi ikomeye muri buri rupapuro ariko intege nke zihuza impapuro zitandukanye. Kandi muri diyama, atome ya karubone irahujwe cyane mubice bitatu, ikora ibintu bikomeye bidasanzwe.

Iyo isano iri hagati ya graphene ishimangiwe, irashobora guhinduka 2D ya diyama izwi nka diamane. Ikibazo nuko, mubisanzwe ntabwo byoroshye gukora. Inzira imwe isaba umuvuduko mwinshi cyane, kandi mugihe uwo muvuduko ukuweho ibintu bisubira muri graphene. Ubundi bushakashatsi bwiyongereye kuri hydrogène atom kuri graphene, ariko ibyo biragoye kugenzura imiyoboro.

Ku bushakashatsi bushya, abashakashatsi bo mu kigo cy’ubumenyi bw’ibanze (IBS) n’ikigo cy’ubumenyi n’ikoranabuhanga cya Ulsan (UNIST) bahinduye hydrogene kuri fluor. Igitekerezo nuko muguhishura bilayeri graphene kuri fluor, izana ibice byombi hamwe, bigatera ubumwe bukomeye hagati yabo.

Itsinda ryatangiye gukora graphene ya bilayeri ikoresheje uburyo bwagerageje-bwukuri bwo kubika imyuka ya chimique (CVD), kuri substrate ikozwe mu muringa na nikel. Hanyuma, berekanye graphene kumyuka ya xenon difluoride. Florine muri iyo mvange ifata kuri atome ya karubone, ishimangira umubano hagati ya graphene no gukora ultrathin layer ya diyama ya fluor, izwi nka F-diamane.

Inzira nshya iroroshye cyane kurenza iyindi, igomba gutuma byoroha kuzamuka. Amabati ya Ultrathin ya diyama ashobora gukora ibikoresho bya elegitoroniki bikomeye, bito kandi byoroshye, cyane cyane nka kimwe cya kabiri cyagutse.

Umwanditsi wa mbere w’ubwo bushakashatsi, Pavel V. Bakharev agira ati: "Ubu buryo bworoshye bwa fluorine bukorera ku bushyuhe bw’icyumba no ku muvuduko muke udakoresheje plasma cyangwa uburyo ubwo ari bwo bwose bwo gukoresha gaze, bityo bigabanya amahirwe yo gutera inenge."