24小时热门版块排行榜    

查看: 5329  |  回复: 117
【奖励】 本帖被评价106次,作者xiejf增加金币 83.2
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

[资源] Nature最新研究进展:石墨烯-氮化硼平面异质结构用作原子层厚度的电路

8月30日更新的Nature杂志刊发了康奈尔大学的研究成果,文章报导了通过平面生长原子层厚度的石墨烯和氮化硼的异质结构,实现了原子层厚度的电路。现上传正文和文章的支持信息与大家分享。
摘要:
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



[ 来自科研家族 材料家族 ]

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 ]
回复此楼

» 本帖附件资源列表

» 收录本帖的淘帖专辑推荐

材料科学最新前沿热点 电化学-电池材料 石墨烯知识汇总 锂电资源共享
英文文献或者教材 先进材料 万卷阁 文献推荐
nano physics&chem 纳米化学/电化学综述 石墨烯小百科 材料类精品资源
好书!好读! 新能源 科技 石墨烯-高分子复合材料
新技术 石墨烯 Nature 晶体制备及测试
开卷有益 新材料&新应用 science&nature 宇宙超级无敌霹雳囧死人不偿命纳米材料(石
材料 专业 无机非金属功能材料

» 猜你喜欢

» 本主题相关商家推荐: (我也要在这里推广)

» 本主题相关价值贴推荐,对您同样有帮助:

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

Actor2006

至尊木虫 (知名作家)


★★★★★ 五星级,优秀推荐

学习了!
38楼2012-09-01 02:49:29
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 118 个回答

cllizhifei

铁虫 (正式写手)


★★★★★ 五星级,优秀推荐

问下楼主是每天都把各大杂志都浏览一遍?还是有其它的方法可以看到自己比较关心的最新论文啊?
11楼2012-08-30 14:16:18
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
简单回复
aaq28002楼
2012-08-30 09:10   回复  
五星好评  顶一下,感谢分享!
dgf20083楼
2012-08-30 11:14   回复  
五星好评  顶一下,感谢分享!
瞬~4楼
2012-08-30 11:21   回复  
五星好评  顶一下,感谢分享!
2012-08-30 11:52   回复  
五星好评  顶一下,感谢分享!
2012-08-30 11:54   回复  
五星好评  顶一下,感谢分享!
2012-08-30 11:54   回复  
顶一下,感谢分享!
韩大脚8楼
2012-08-30 12:01   回复  
五星好评  顶一下,感谢分享!
wangjilin9楼
2012-08-30 12:34   回复  
五星好评  顶一下,感谢分享!
njrlfu10楼
2012-08-30 14:05   回复  
五星好评  顶一下,感谢分享!
2012-08-30 14:24   回复  
五星好评  顶一下,感谢分享!
yf.li13楼
2012-08-30 14:26   回复  
五星好评  顶一下,感谢分享!
yf.li14楼
2012-08-30 14:27   回复  
顶一下,感谢分享!
☆ 无星级 ★ 一星级 ★★★ 三星级 ★★★★★ 五星级
普通表情 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 26调剂/材料/英一数二/总分289/已过A区线 +8 步川酷紫123 2026-03-13 8/400 2026-03-20 08:47 by xingguangj
[考研] 288求调剂 +15 于海海海海 2026-03-19 15/750 2026-03-19 22:41 by 学员8dgXkO
[考博] 申博26年 +3 八6八68 2026-03-19 3/150 2026-03-19 19:43 by nxgogo
[考研] 梁成伟老师课题组欢迎你的加入 +9 一鸭鸭哟 2026-03-14 11/550 2026-03-19 17:22 by !本暗一次!
[考研] 一志愿西安交通大学材料工程专业 282分求调剂 +5 枫桥ZL 2026-03-18 7/350 2026-03-19 14:52 by 功夫疯狂
[考研] 本科郑州大学物理学院,一志愿华科070200学硕,346求调剂 +4 我不是一根葱 2026-03-18 4/200 2026-03-19 09:11 by 浮云166
[考研] 材料工程专硕调剂 +5 204818@lcx 2026-03-17 6/300 2026-03-18 22:55 by 204818@lcx
[考研] 一志愿华中科技大学,080502,354分求调剂 +4 守候夕阳CF 2026-03-18 4/200 2026-03-18 22:16 by li123456789.
[考研] 344求调剂 +6 knight344 2026-03-16 7/350 2026-03-18 20:13 by walc
[考研] 302求调剂 +10 呼呼呼。。。。 2026-03-17 10/500 2026-03-18 12:45 by Linda Hu
[考博] 26博士申请 +3 1042136743 2026-03-17 3/150 2026-03-17 23:30 by 轻松不少随
[考研] 考研化学学硕调剂,一志愿985 +4 张vvvv 2026-03-15 6/300 2026-03-17 17:15 by ruiyingmiao
[考研] 材料与化工专硕调剂 +5 heming3743 2026-03-16 5/250 2026-03-17 14:03 by 勇敢太监王公公
[考研] 275求调剂 +4 太阳花天天开心 2026-03-16 4/200 2026-03-17 10:53 by 功夫疯狂
[论文投稿] 有没有大佬发小论文能带我个二作 +3 增锐漏人 2026-03-17 4/200 2026-03-17 09:26 by xs74101122
[考研] 326求调剂 +3 mlpqaz03 2026-03-15 3/150 2026-03-16 07:33 by Iveryant
[考研] 26考研一志愿中国石油大学(华东)305分求调剂 +3 嘉年新程 2026-03-15 3/150 2026-03-15 13:58 by 哈哈哈哈嘿嘿嘿
[考研] 0856专硕279求调剂 +5 加油加油!? 2026-03-15 5/250 2026-03-15 11:58 by 2020015
[考研] 085601材料工程315分求调剂 +3 yang_0104 2026-03-15 3/150 2026-03-15 10:58 by peike
[考研] 288求调剂 +4 奇点0314 2026-03-14 4/200 2026-03-14 23:04 by JourneyLucky
信息提示
请填处理意见