Atomic-scale Interaction Dynamics in Few-layer Hexagonal Boron Nitride (h-BN)

Atomic-scale Interaction Dynamics in Few-layer Hexagonal Boron Nitride (

h-BN)

1DVLP$OHP4XHQWLQ5DPDVVH0LFKDHO6DUDKDQ 5ROI(UQL2OHJ9<D]\HY.ULV(ULFNVRQ 6WHYHQ*/RXLH$OH[=HWWO   'HSDUWPHQWRI3K\VLFV8QLYHUVLW\RI&DOLIRUQLDDW%HUNHOH\%HUNHOH\&DOLIRUQLD  &HQWHURI,QWHJUDWHG1DQRPHFKDQLFDO6\VWHPV8QLYHUVLW\RI&DOLIRUQLDDW%HUNHOH\%HUNHOH\&DOLIRUQLD _{0DWHULDOV6FLHQFHV'LYLVLRQ/DZUHQFH%HUNHOH\1DWLRQDO/DERUDWRU\%HUNHOH\&DOLIRUQLD}  6XSHU67(067)&'DUHVEXU\/DERUDWRULHV8.  (PSD6ZLVV)HGHUDO/DERUDWRULHVIRU0DWHULDOV6FLHQFHDQG7HFKQRORJ\6ZLW]HUODQG  7ZRGLPHQVLRQDOFU\VWDOVJUDSKHQHDQGKH[DJRQDOERURQQLWULGHh%1FRQVLVWRIDVLQJOHVKHHWRIsp ERQGHGDWRPVIRUPLQJDKRQH\FRPEODWWLFH>@7KHDWRPLFVWUXFWXUHDQGVXUIDFHFKHPLVWU\RIWKHVHV\VWHPV FDQVLJQLILFDQWO\DIIHFWWKHLUUHVXOWLQJSK\VLFDOFKHPLFDODQGVHQVLQJSURSHUWLHV2ZLQJWRWKHLUODUJH VXUIDFHDUHDWZRGLPHQVLRQDOFU\VWDOVFDQLQWHUDFWZLWKYDULRXVDWRPLFVSHFLHVDQGIXQFWLRQDOJURXSVWR UHGXFHWKHLUVXUIDFHHQHUJ\6XFKLQWHUDFWLRQVFDQKHOSZLWKUHDOL]LQJWKHIXQFWLRQDOL]DWLRQRIQRYHOsp ERQGHGPDWHULDOVWKXVFKDQJLQJWKHLUSK\VLFDODQGFKHPLFDOSURSHUWLHV)RUH[DPSOHWKHLQWHUDFWLRQ G\QDPLFVRIJUDSKHQHZLWKGLIIHUHQWDWRPLFVSHFLHVUHYHDOVWKHFKHPLFDOUHDFWLYLW\RIWKLVFU\VWDOPHPEUDQH WRGLIIHUHQWIXQFWLRQDOJURXSVLWVHQHUJHWLFDOO\IDYRUDEOHVLWHVDQGLWVVWDELOLW\>@+H[DJRQDOERURQ QLWULGHLVDQRWKHUH[DPSOHRIDQspERQGHGV\VWHPLQZKLFKWKHDOWHUQDWLQJERURQDQGQLWURJHQDWRPVIRUPD SRODUFRYDOHQWO\ERQGHGKRQH\FRPEODWWLFH>@,QFRQWUDVWWRJUDSKHQHOLWWOHZRUNKDVEHHQGRQHWRIXOO\ XQGHUVWDQGWKHLQWHUDFWLRQG\QDPLFVEHWZHHQh%1DQGYDULRXVDWRPLFVSHFLHVLWVFKHPLFDOVWDELOLW\DQGLWV DFWLYHFKHPLFDOVLWHV  ,QWKLVVWXG\ZHLQYHVWLJDWHWKHVWUXFWXUHRIK%1DQGLWVLQWHUDFWLRQG\QDPLFVE\VFDQQLQJWUDQVPLVVLRQ HOHFWURQPLFURVFRS\XVLQJWKH1LRQ8OWUD67(0ORFDWHGDW'DUHVEXU\ODERUDWRU\RSHUDWHGDWN97KLV VWXG\VKRZVWKDWWKHHOHFWURQNQRFNRQGDPDJHSURFHVVRIh%1DWN9FUHDWHVYDULRXVWHUUDFHVVWHS HGJHVGHIHFWVDQGKROHVLQWKHh%1PHPEUDQH)LJXUHVKRZVWKHIRUPDWLRQRIDODUJHWHUUDFHLQh%1 ZLWKDODUJHVLQJOHOD\HUQH[WWRDKROH2XULQYHVWLJDWLRQVVKRZWKDWVWUDLJKW]LJ]DJHGJHVVHHPWREHDPRUH VWDEOHFRQILJXUDWLRQVLPLODUWRWKHK%1GDPDJHPHFKDQLVPREVHUYHGDWN9>@)XUWKHUPRUHYDFDQFLHV DUHIRUPHGDVDUHVXOWRIUHPRYLQJDERURQDWRPIURPWKHPRQROD\HU0/h%1  )LJXUHVKRZVDQRWKHUUHJLRQRIh%1ZLWKODUJHWHUUDFHVDQGVWHSHGJHVZKLFKSURYLGHVERQGLQJVLWHVRI RWKHUFKHPLFDOVSHFLHVVXFKDVFDUERQDGDWRPV$KROHFDQEHVHHQLQWKHXSSHUOHIWFRUQHURIWKHVDPSOHLQ WKLVLPDJHQH[WWRDGRXEOHOD\HUUHJLRQRIh%17KHVWUDLJKWZKLWHOLQHVRQh%1LQ)LJXUHVKRZ]LJ]DJ FKDLQVRIFDUERQDGDWRPVDVLGHQWLILHGE\HOHFWURQHQHUJ\ORVVVSHFWURVFRS\)LJXUHDVKRZV]LJ]DJFDUERQ FKDLQVDWWKHVWHSHGJHV=LJ]DJFKDLQVRIFDUERQDUHDOVRIRUPHGZLWKLQWKHWHUUDFHVZKHUHWKHUHLVQRVWHS HGJHRUGHIHFWSUHVHQW)LJE&RQVHFXWLYHVFDQVIURPWKHUHJLRQLQ)LJXUHELQGLFDWHWKHPRYHPHQWRI WKHFDUERQIURQWRQWKHh%1VXUIDFHZKLOHPDLQWDLQLQJLWVWKH]LJ]DJFRQILJXUDWLRQ7KHLQWHUDFWLRQV EHWZHHQh%1ODWWLFHDQGFDUERQDUHEHOLHYHGWREHVXUIDFHHQHUJ\GULYHQDQGDUHIXUWKHUDGGUHVVHGLQWKLV VWXG\  5HIHUHQFHV

>@ .61RYRVHORYHWDOProceedings of the national academy of sciences of the United States of

America, 1258

doi:10.1017/S1431927611007161 © Microscopy Society of America 2011Microsc. Microanal. 17 (Suppl 2), 2011

https://doi.org/10.1017/S1431927611007161

>@ *RPH]1DYDUUR&HWDONano Letters >@ .(ULFNVRQHWDOAdvanced Materials >@ 5(UQLHWDOPhysical Review B >@ 1$OHPHWDOPhysical Review B >@ 2/.ULYDQHNHWDONature  a _1ML b hole  )LJXUHDh%1ZLWKDIHZWHUUDFHVDQGVWHSHGJHV E$PRQROD\HUDUHDRIh%1QH[WWRDKROHF7KH OLQHSURILOHRIWKHXQLWFHOOLQWKHPRQROD\HUDUHD LQGLFDWLQJQLWURJHQDWRPVORFDWHGRQWKHULJKWVLGHRIWKH XQLWFHOO  hole _{a b}  )LJXUHD7HUUDFHVRQh%1FUHDWHGXQGHUWKHHOHFWURQEHDP7KHEULJKWVWUDLJKWOLQHVVKRZFDUERQ DGDWRPVDWWKHVWHSHGJHVRIh%1E$]LJ]DJFKDLQRIFDUERQDWRPVLVREVHUYHGRQWKHh%1 VXUIDFHZKHUHQRVWHSHGJHVRURWKHUGHIHFWVDUHSUHVHQW B B N N c

Microsc. Microanal. 17 (Suppl 2), 2011 1259

https://doi.org/10.1017/S1431927611007161