Kuziritsa zamagetsi zamagetsi mu mafoni aposachedwa kwambiri kumatha kukhala vuto lalikulu. Ofufuza ku King Abdullah yunivesite ya sayansi ya sayansi, adapanga njira yofulumira komanso yabwino yopangira zida za kaboni kuti zisanduke ndi zida zamagetsi. Zinthu zosintha izi zitha kupeza ntchito zina, kuchokera ku masewero a mafuta ku dzuwa.
Zipangizo zambiri zamagetsi zimagwiritsa ntchito mafilimu a graphite kuchititsa ndikuletsa kutentha komwe kumapangidwa ndi magawo a zamagetsi. Ngakhale graphite ndi mtundu wachilengedwe wa kaboni, mabowo oyendetsa magetsi mu zamagetsi ndi njira yovuta kwambiri ndipo nthawi zambiri imatengera kugwiritsa ntchito mafilimu apamwamba kwambiri a micron. "Komabe, njira yopangira makanema opitirapo pogwiritsa ntchito ma polima ngati zida zomera ndi zovuta kwambiri," akufotokoza zamphamvu kwambiri. Makanema amapangidwa kudzera pazinthu zingapo zomwe zimafuna kutentha mpaka madigiri 3,200 Celsius ndipo sangathe kupanga mafilimu owonda kuposa ma microns ochepa.
Deakar, Costa ndi ogwira nawo ntchito apanga njira yofulumira komanso yothandiza popanga zigawenga pafupifupi 100 nanometers. Gululi limagwiritsa ntchito njira yotchedwa mankhwala otchedwa mankhwala osokoneza bongo (cvd) kuti akume mafilimu a NGOMET (NGF) pa Cickel zojambulazo, pomwe Nickel amapereka kutembenuka kwa graphite pamtengo. "Tinakwanitsa ngf mu cvd kukula kwa mphindi 5 zokha, kutentha kwa madigiri 900," adatero deokar adatero.
Ngf imatha kumera mpaka 55 masentimita m'derali ndikukula mbali zonse ziwiri za zojambulazo. Itha kuchotsedwa ndikusamutsidwa kumayiko ena popanda kufunikira kwa othandizira polima, omwe ndiomwe amafunikira pogwira ntchito ndi mafilimu amodzi.
Kugwira ntchito ndi katswiri wa ma microctopy Asandro asandro, gululi lidapeza zifaniziro zamagetsi zamagetsi (tem) zigawo za zigawo za NGF pa nickel. "Kuwona mawonekedwe a Graphite ndi Finketona ndi zomwe sizinachitike ndipo zimaperekanso chidziwitso chowonjezereka pakupanga makina awa," Costa adatero. "
Kukula kwa ngf kumagwera pakati pa makanema opezeka ndi ma graphite ndi graphene imodzi. "Ngf imakwaniritsa graphene ndi mafakitale ojambula mafakitale, ndikuwonjezera zida za zida zamaphikinti zowoneka bwino," Costa adati. " Mwachitsanzo, chifukwa cha kusinthasintha kwake, NGF ikhoza kugwiritsidwa ntchito poyendetsa matenthedwe m'mabodi osinthika omwe tsopano akuyamba kuwonekera pamsika. "Kuyerekeza ndi makanema a graphene, kuphatikiza kwa gf kumakhala kotsika mtengo komanso kokhazikika," adawonjezera.
Komabe, NGF imagwiritsa ntchito ambiri kupitiriza kutentha. Chochititsa chidwi chotsimikizika m'mafanizo a tem ndikuti madera ena a NGF ndi ochepa okha a kaboni pang'ono chabe. "Modabwitsa, kupezeka kwa zigawo zingapo za graphene madera kumatsimikizira kuti pali mawonekedwe owoneka bwino mufilimuyi," Deoka adatero. Gulu lofufuzira lomwe limachita chidwi, zomwe zimapangitsa kuti zizichitika ndi gawo la maselo a dzuwa kapena ngati chinthu chanzeru kuti adziwe mpweya wa nayicogen dioxide. "Tikukonzekera kuphatikiza za NGF kukhala zipangizo kuti zizikhala ngati zinthu zodziwika bwino," Costa adati.
Zambiri: Gitanjali deokar et al. Doi: 10.1088 / 1361-6528 / ABA712
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Post Nthawi: Sep-05-2024