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ڵλ: ҳ >> >> 新突破:现在能让石墨烯,变成单层单晶?
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λ:֣ݻⳬӲ˾. : ҵϢ . ʱ:2019/8/1. : 3890 .
ѧоһĵ㣬ʯīϩĤڴͭϡĽ˻ѧ(CVD)ʯīϩͭϵ̼ʡ־ȡĵ㵥ʯīϩ߷ֱ羵ѧ豸ij֧ŲϡҲΪһֺʵʯīϩʵַdzȵĹܻ⽫ʹƶӦãرڸ͵Ĵ Ulsanҿѧо(UNIST)ѧо(IBS)ά̼(CMCM)Rodney RuoffΣ쵼оС顣ƺһϵйڵʯīϩµһȻһɹ֮ǰǧƪĵIJ֮ͬڣǶûĵʯīϩAdlayers(˫)һֱڡIBSĿѧǸĽ˻ѧ(CVD)ʯīϩͭϵ̼ʡ (ͭ)ϵĻѧ(CVD)ĿǰƱʯīϩĤ߷չǰķоСоͭϵʯīϩĤΪʲô֡adlayersֱĤеֱ̼ӵadlayersijɺ˺ͨʹ÷ʱȼշҵͭС̼ڱ渽ԼΪ300סͨͭӦ֮һͭҵ˾һλרۣоԱ˽ У̼ǶͭУͭڸʱӴ̼͡H2¶Ϊ1060ȫȥ̼ܹʵadlayfreeӶʵĵʯīϩĤͨͬķIBSĿѧǻڵͭϻadlayer͵ʯīϩĤоĵһ֮һԣ룩˵ͽ֮ǰCVDʯīϩĤ(adlayers and grain boundaries, GBs)ͬʱϳһֱڵ⡣ȷڴ(絥˫)ʵֲԣȷ豸ܵһԡ AdlayerڣĻʱAdlayerܶȺͳߴҲͬadlayers, GBsCVDƱĶྦྷʯīϩĤУͬȡʯīϩһγɱĤGBsĴڽӵǨʺ͵ʣ˻еǿȡˣѧڵĤһ˵ֵʯīϩ߶ȶƽС塱ΪףԼΪ100ף2050סadlayersGBsһʯīϩǨʡ Ϊadlayers, GBsɢЧӦоС֮Լƽľϻ˳ЧӦܵͼΡྦྷʯīϩĤгֲ岻ͬڴʯīϩĤи߶Сʹú״֮켯ɸ֮ǡɾġûκ塢adlayersGBsʹøкܸߵĵǨʺͿѨǨʡ ЧӦʾdzߵǨֵԼΪ1.0 x 104 cm2V-1s-1˸ߵƶԡתΪиܵĸ豸adlayerʯīϩķһͻơ־ȡĵ㵥ʯīϩ߷ֱ羵ѧ豸ij֧ŲϡҲΪһֺʵʯīϩʵַdzȵĹܻоɻѧооɹڡȽϡϡ |