²é¿´: 5333  |  »Ø¸´: 117
¡¾½±Àø¡¿ ±¾Ìû±»ÆÀ¼Û106´Î£¬×÷ÕßxiejfÔö¼Ó½ð±Ò 83.2 ¸ö
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

[×ÊÔ´] Nature×îÐÂÑо¿½øÕ¹£ºÊ¯Ä«Ï©-µª»¯ÅðÆ½ÃæÒìÖʽṹÓÃ×÷Ô­×Ó²ãºñ¶ÈµÄµç·

8ÔÂ30ÈÕ¸üеÄNatureÔÓÖ¾¿¯·¢ÁË¿µÄζû´óѧµÄÑо¿³É¹û£¬ÎÄÕ±¨µ¼ÁËͨ¹ýÆ½ÃæÉú³¤Ô­×Ó²ãºñ¶ÈµÄʯīϩºÍµª»¯ÅðµÄÒìÖʽṹ£¬ÊµÏÖÁËÔ­×Ó²ãºñ¶ÈµÄµç·¡£ÏÖÉÏ´«ÕýÎĺÍÎÄÕµÄÖ§³ÖÐÅÏ¢Óë´ó¼Ò·ÖÏí¡£
ͻ񻣼
Precise spatial control over the electrical properties of thin films is
the key capability enabling the production of modern integrated
circuitry. Although recent advances in chemical vapour deposition
methods have enabled the large-scale production of both intrinsic
and doped graphene, aswell as hexagonal boron nitride (h-BN),
controlled fabrication of lateral heterostructures in these truly
atomically thin systems has not been achieved. Graphene/h-BN
interfaces are of particular interest, because it is known that areas
of different atomic compositions may coexist within continuous
atomically thin films and that, with proper control, the bandgap
and magnetic properties can be precisely engineered. However,
previously reported approaches for controlling these interfaces have
fundamental limitations and cannot be easily integrated with conventional
lithography. Here we report a versatile and scalable
process, which we call ¡®patterned regrowth¡¯, that allows for the
spatially controlled synthesis of lateral junctions between electrically
conductive graphene and insulating h-BN, as well as between
intrinsic and substitutionally doped graphene.We demonstrate that
the resulting films formmechanically continuous sheets across these
heterojunctions. Conductance measurements confirm laterally
insulating behaviour forh-BN regions, while the electrical behaviour
of both doped and undoped graphene sheets maintain excellent
properties, with low sheet resistances and high carrier mobilities.
Our results represent an important step towards developing
atomically thin integrated circuitry and enable the fabrication
of electrically isolated active and passive elements embedded in
continuous, one-atom-thick sheets, which could be manipulated
and stacked to form complex devices at the ultimate thickness limit.
¡£


Graphene and boron nitride lateral heterostructures for atomically thin circuitry.jpg



[ À´×Ô¿ÆÑмÒ×å ²ÄÁϼÒ×å ]

nature11408-f1.2.jpg



nature11408-f2.2.jpg



nature11408-f3.2.jpg



nature11408-f4.2.jpg



nature11408-f5.2.jpg



[ Last edited by xiejf on 2012-8-30 at 08:31 ]
»Ø¸´´ËÂ¥

» ±¾Ìû¸½¼þ×ÊÔ´Áбí

» ÊÕ¼±¾ÌûµÄÌÔÌûר¼­ÍƼö

²ÄÁÏ¿ÆÑ§×îÐÂÇ°ÑØÈȵ㠵绯ѧ-µç³Ø²ÄÁÏ Ê¯Ä«Ï©ÖªÊ¶»ã×Ü ï®µç×ÊÔ´¹²Ïí
Ó¢ÎÄÎÄÏ×»òÕß½Ì²Ä ÏȽø²ÄÁÏ Íò¾í¸ó ÎÄÏ×ÍÆ¼ö
nano physics&chem ÄÉÃ×»¯Ñ§/µç»¯Ñ§×ÛÊö ʯīϩС°Ù¿Æ ²ÄÁÏÀྫƷ×ÊÔ´
ºÃÊ飡ºÃ¶Á£¡ ÐÂÄÜÔ´ ¿Æ¼¼ ʯīϩ-¸ß·Ö×Ó¸´ºÏ²ÄÁÏ
м¼Êõ ʯīϩ Nature ¾§ÌåÖÆ±¸¼°²âÊÔ
¿ª¾íÓÐÒæ вÄÁÏ&ÐÂÓ¦Óà science&nature ÓîÖæ³¬¼¶ÎÞµÐÅùö¨‡åËÀÈ˲»³¥ÃüÄÉÃײÄÁÏ£¨Ê¯
²ÄÁÏ ×¨Òµ ÎÞ»ú·Ç½ðÊô¹¦ÄܲÄÁÏ

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹ØÉ̼ÒÍÆ¼ö: (ÎÒÒ²ÒªÔÚÕâÀïÍÆ¹ã)

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

mindsky

ľ³æ (ÖøÃûдÊÖ)


¡ï¡ï¡ï ÈýÐǼ¶,Ö§³Ö¹ÄÀø

35Â¥2012-08-31 19:18:17
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 118 ¸ö»Ø´ð

cllizhifei

Ìú³æ (ÕýʽдÊÖ)


¡ï¡ï¡ï¡ï¡ï ÎåÐǼ¶,ÓÅÐãÍÆ¼ö

ÎÊÏÂÂ¥Ö÷ÊÇÿÌì¶¼°Ñ¸÷´óÔÓÖ¾¶¼ä¯ÀÀÒ»±é£¿»¹ÊÇÓÐÆäËüµÄ·½·¨¿ÉÒÔ¿´µ½×Ô¼º±È½Ï¹ØÐĵÄ×îÐÂÂÛÎİ¡£¿
11Â¥2012-08-30 14:16:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
¼òµ¥»Ø¸´
aaq28002Â¥
2012-08-30 09:10   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
dgf20083Â¥
2012-08-30 11:14   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
˲¡«4Â¥
2012-08-30 11:21   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
2012-08-30 11:52   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
suoluotree6Â¥
2012-08-30 11:54   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
suoluotree7Â¥
2012-08-30 11:54   »Ø¸´  
¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
2012-08-30 12:01   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
wangjilin9Â¥
2012-08-30 12:34   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
njrlfu10Â¥
2012-08-30 14:05   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
2012-08-30 14:24   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
yf.li13Â¥
2012-08-30 14:26   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
yf.li14Â¥
2012-08-30 14:27   »Ø¸´  
¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
¡î ÎÞÐǼ¶ ¡ï Ò»ÐǼ¶ ¡ï¡ï¡ï ÈýÐǼ¶ ¡ï¡ï¡ï¡ï¡ï ÎåÐǼ¶
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 274Çóµ÷¼Á +8 S.H1 2026-03-18 8/400 2026-03-20 11:53 by ѧԱ8dgXkO
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷ÄϽ»Í¨ ר˶ ²ÄÁÏ355 ±¾¿ÆË«·Ç Çóµ÷¼Á +4 Î÷ÄϽ»Í¨×¨²Ä355 2026-03-19 4/200 2026-03-20 11:39 by »¨¿ª¸»¹óÐÒ¸£ÈËÉ
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ£¬327·Ö£¬²ÄÁÏÓ뻯¹¤085600 +5 Ncdx123456 2026-03-19 5/250 2026-03-20 11:15 by wangy0907
[¿¼ÑÐ] Ò»Ö¾Ô¸Î人Àí¹¤²ÄÁϹ¤³Ìר˶µ÷¼Á +7 Doleres 2026-03-19 7/350 2026-03-20 10:39 by EBSD
[¿¼ÑÐ] Ò»Ö¾Ô¸ËÕÖÝ´óѧ²ÄÁÏÇóµ÷¼Á£¬×Ü·Ö315£¨Ó¢Ò»£© +3 sbdksD 2026-03-19 3/150 2026-03-19 23:21 by fmesaito
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á +10 ÄÝÄÝninicgb 2026-03-15 14/700 2026-03-19 22:59 by ѧԱ8dgXkO
[¿¼ÑÐ] Ò»Ö¾Ô¸Ìì½ò´óѧ»¯Ñ§¹¤ÒÕרҵ£¨081702£©315·ÖÇóµ÷¼Á +11 yangfz 2026-03-17 11/550 2026-03-19 15:06 by houyaoxu
[¿¼ÑÐ] 346Çóµ÷¼Á[0856] +3 WayneLim327 2026-03-16 6/300 2026-03-19 11:21 by WayneLim327
[¿¼ÑÐ] 332Çóµ÷¼Á +3 ydfyh 2026-03-17 3/150 2026-03-19 10:14 by ¹¦·ò·è¿ñ
[¿¼ÑÐ] ±¾¿ÆÖ£ÖÝ´óѧÎïÀíѧԺ£¬Ò»Ö¾Ô¸»ª¿Æ070200ѧ˶£¬346Çóµ÷¼Á +4 ÎÒ²»ÊÇÒ»¸ù´Ð 2026-03-18 4/200 2026-03-19 09:11 by ¸¡ÔÆ166
[¿¼ÑÐ] 354Çóµ÷¼Á +4 Tyoumou 2026-03-18 7/350 2026-03-18 21:45 by Tyoumou
[¿¼ÑÐ] ²ÄÁÏרҵÇóµ÷¼Á +5 hanamiko 2026-03-18 5/250 2026-03-18 20:19 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 293Çóµ÷¼Á +11 zjlµÄºÅ 2026-03-16 16/800 2026-03-18 08:10 by zhukairuo
[¿¼ÑÐ] 301Çóµ÷¼Á +4 A_JiXing 2026-03-16 4/200 2026-03-17 17:32 by ruiyingmiao
[¿¼ÑÐ] 275Çóµ÷¼Á +4 Ì«Ñô»¨ÌìÌ쿪ÐÄ 2026-03-16 4/200 2026-03-17 10:53 by ¹¦·ò·è¿ñ
[¿¼ÑÐ] ¿¼Ñе÷¼Á +3 ä¿ya_~ 2026-03-17 5/250 2026-03-17 09:25 by Winj1e
[¿¼ÑÐ] Ò»Ö¾Ô¸£¬¸£ÖÝ´óѧ²ÄÁÏר˶339·ÖÇóµ÷¼Á +3 ľ×ÓmomoÇàÕù 2026-03-15 3/150 2026-03-17 07:52 by laoshidan
[¿¼ÑÐ] 070303 ×Ü·Ö349Çóµ÷¼Á +3 LJY9966 2026-03-15 5/250 2026-03-16 14:24 by xwxstudy
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á 290·ÖÓпÆÑо­Àú£¬ÂÛÎÄÔÚͶ +7 ÄåÄågk 2026-03-14 7/350 2026-03-16 10:12 by houyaoxu
[¿¼ÑÐ] 289Çóµ÷¼Á +4 ÕâôÃû×ÖÕ¦Ñù 2026-03-14 6/300 2026-03-14 18:58 by userper
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û