Graphene ine jira rimwe chete remaatomu ekabhoni akarongwa muchikamu chehexagonal lattice. Chinhu ichi chinochinjika zvikuru uye chine hunhu hwakanaka hwemagetsi, zvichiita kuti chikwezve kushandiswa kwakawanda—kunyanya zvikamu zvemagetsi.
Vaongorori vakatungamirirwa naProfessor Christian Schönenberger vekuSwiss Institute of Nanoscience neDhipatimendi reFizikisi reYunivhesiti yeBasel vakadzidza maitiro ekushandisa simba rehunhu hwemagetsi hwezvinhu kuburikidza nekutambanudza michina.Kuti vaite izvi, vakagadzira hurongwa hwaishandiswa kutambanudzwa nechikamu chegraphene chakatetepa cheatomu nenzira inodzorwa vachiyera hunhu hwacho hwemagetsi.
Kana kumanikidzwa kwacho kwaiswa kubva pasi, chikamu chacho chinokotama. Izvi zvinoita kuti girafu re graphene riwedzere uye richinje hunhu hwaro hwemagetsi.
Masangweji ari pasherufu
Masayendisiti akatanga kugadzira sandwich ye "sandwich" ine graphene pakati pezvikamu zviviri zve boron nitride. Zvikamu zvinopihwa nemagetsi zvinoiswa kune substrate inochinjika.
Mamiriro emagetsi akachinjaVaongorori vakatanga vashandisa nzira dzekutarisa kuti vagadzirise kutambanudza kwegraphene. Vakazoshandisa nzira dzemagetsi. zviyero zvekutakura kuti tidzidze kuti kushanduka kwegraphene kunochinja sei simba remaerekitironi. Izvi Kuyerwa kunofanirwa kuitwa pa minus 269°C kuti uone shanduko dzesimba.
Madhayagiramu esimba remuchina we graphene isina kumanikidzwa uye graphene ine ruvara rwegirini (b) yakasunganidzwa panzvimbo isina kumanikidzwa (CNP). "Kureba kuri pakati pemanuclei kunokanganisa zvakananga hunhu hwemamiriro emagetsi mugraphene," Baumgartneryakapfupikisa mhedzisiro yacho. "Kana kutambanudza kwakafanana, kumhanya nesimba remaerekitironi chete ndizvo zvinogona kuchinja." Kuchinja kuri musimba ndiro simba guru rinofanotaurwa nedzidziso, uye tave kukwanisa kuratidza izvi kuburikidzakuedza." Zvinofungidzirwa kuti mhedzisiro iyi ichaita kuti pave nemasensa kana mhando itsva dzematransistors. Pamusoro pezvo,Graphene, senzira yekuenzanisira yezvimwe zvinhu zvine mativi maviri, yave nyaya inokosha yekutsvagisa pasi rose mumakore achangopfuura.
Nguva yekutumira: Chikunguru-02-2021
