Kutonhorera magetsi ane simba mune yazvino masaini anogona kuve dambudziko rakakura. Vanotsvaga Mambo Abdullah Yunivhesiti yeSainzi uye tekinoroji vakagadzira nzira yekukurumidza uye inoshanda yekugadzira kabhoni zvinhu zvakanakira kupisa kubva pane zvemagetsi zvishandiso. Izvi zvinhu zvakawandisa zvinogona kuwana zvimwe zvekushandisa, kubva kune gasi sensors kuenda kune solar panels.
Midziyo yakawanda yemagetsi inoshandisa mafirita mafirimu ekuita uye kusanganisa kupisa kunogadzirwa nemagetsi zvikamu zvemagetsi. Kunyangwe graphite inzira yepanyama yeCarbon, yekunyora manejimendi mumagetsi ndeyekushandisa kwekushandisa uye kazhinji zvinoenderana nekushandiswa kwemhando yepamusoro-mhando mafirimu mafirimu. "Zvisinei, nzira yekugadzira iyi mafirita maficha uchishandisa mapuranga seyakagadzirwa zvinhu zvakaoma uye nesimba," anotsanangura kudaro Gitanjali Deokar, postdoc muPedro Costa's Lab uyo akatungamira basa. Mafaira anogadzirwa kuburikidza neyakawandisa-nhanho maitiro anoda kupisa kusvika pamakumi matatu nemazana maviri emadhigiri Celsius uye haakwanise kuburitsa mafirimu akaonda kupfuura maikorohyisi mashoma.
Deokar, Costa uye vavanoshanda navo vakagadzira nzira yekukurumidza uye ine simba yekugadzira graphite mashiti anenge 100 nanometers gobvu. Chikwata chakashandisa nzira inonzi Chemical Vapor Vapor Conposition "Isu takawana ngf mumaminetsi mashanu--minwe CvD kukura danho rekuita tembiricha yemadhigidhi mazana mapfumbamwe Celsius," Deokar akadaro.
Ngf inogona kukura mumashiti kusvika pamakumi mashanu neshanu munzvimbo uye kukura pamativi ese e foil. Inogona kubviswa uye inoendeswa kune mamwe maficha pasina kudiwa kwePolymer Tsigiro layer, iyo inozivikanwa chinodiwa kana ichishanda neyakaenzana-denderedzwa graphere mafirimu.
Kushanda ne Electron microscopy nyanzvi Alessandro Genoveres, timu yakawana kutumira Equiroscopy (tem) mifananidzo yeNGF paNickerl. "Kuona iyo interface yemafirimu efripite uye nickel foil chiitiko chisina kumboitika uye chinopa zvimwe zvinonzwisisika mukukura kweaya mafirimu," COSTA akadaro.
Iko ukobvu kweNGF inodonha pakati pekutengeserana inowanikwa micron-gobvu mafirita mafirimu uye imwe-layer graphene. "NGF inoenderana neGriphene uye masisitimu emaindasitiri, achiwedzera kune hutsinye hwemafirimu emakaroni akaomeswa," Costa akadaro. Semuenzaniso, nekuda kwekuchinjika kwayo, ngf inogona kushandiswa kumanagematidziro yekufambisa mumharidzo dzinoshanduka ikozvino dzave kutanga kuoneka pamusika. "Kuenzaniswa nemafirimu eGriphene, kubatanidzwa kweNGF kuchave kwakachipa uye kuchagadzikana," akawedzera.
Nekudaro, ngf ine zvakawanda zvinoshandiswa kupfuura kupisa kwekupisa. Chinhu chinonakidza chakaratidzwa mumifananidzo yemifananidzo ndechekuti zvimwe zvikamu zveNGF zvinongova zviyero zvishoma zve kabhoni. "Zvinoshamisa kuti kuvapo kwakawanda kweGriphene Domains inovimbisa huwandu hwakakwana hwekujeka kwechiedza mufirimu rese," Deoka akadaro. Chikwata chekutsvagisa chinyengera icho chinoita, translucent ngf chinogona kushandiswa sechinhu chemasero eSolar kana sechinhu chekunzwa cheNitrogen dioxide gasi. "Isu tinoronga kuunganidza ngf kuita zvishandiso kuitira kuti zvinogona kuita sechizhinji chinongedzo," Costa akadaro.
Rimwezve ruzivo: Gitanjali Deokar et al., Kukurumidza kukura kweNanometer-Hick Grapite Films on Wafer-Scaliss, Nanotechnology (2020). DOI: 10.1088 / 1361-6528 / Aba712
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Kutumira Nguva: Sep-05-2020