24小时热门版块排行榜    

查看: 1913  |  回复: 25
【奖励】 本帖被评价23次,作者knightxx增加金币 17.8

knightxx

银虫 (初入文坛)


[资源] Account综述:化学气相沉积石墨烯单晶

Chemical Vapor Deposition of Graphene Single Crystals

In this Account, we first discuss graphene grain boundaries and their influence on graphene’s properties. Mechanical and electrical behaviors of CVD-derived polycrystalline graphene are greatly reduced when compared to that of exfoliated graphene. We then review four representative pathways of pretreating Cu substrates to make millimeter-sized monolayer graphene grains: electrochemical polishing and high-pressure annealing of Cu substrate, adding of additional Cu enclosures, melting and resolidfying Cu substrates, and oxygen-rich Cu substrates. Due to these pretreatments, the nucleation site density on Cu substrates is greatly reduced, resulting in hexagonal-shaped graphene grains that show increased grain domain size and comparable electrical properties as to exfoliated graphene. Also, the properties of graphene can be engineered by its shape, thickness and spatial structure. Thus, we further discuss recently developed methods of making graphene grains with special spatial structures, including snowflakes, six-lobed flowers, pyramids and hexagonal graphene onion rings. The fundamental growth mechanism and practical applications of these well-shaped graphene structures should be interesting topics and deserves more attention in the near future. Following that, recent efforts in fabricating large single-crystal monolayer graphene on other metal substrates, including Ni, Pt, and Ru, are also described. The differences in growth conditions reveal different growth mechanisms on these metals. Another key challenge for graphene growth is to make graphene single crystals on insulating substrates, such as h-BN, SiO2, and ceramic. The recently developed plasma-enhanced CVD method can be used to directly synthesize graphene single crystals on h-BN substrates and is described in this Account as well.
To summarize, recent research in synthesizing millimeter-sized monolayer graphene grains with different pretreatments, graphene grain shapes, metal catalysts, and substrates is reviewed. Although great advancements have been achieved in CVD synthesis of graphene single crystals, potential challenges still exist, such as the growth of wafer-sized graphene single crystals to further facilitate the fabrication of graphene-based devices, as well as a deeper understanding of graphene growth mechanisms and growth dynamics in order to make graphene grains with precisely controlled thicknesses and spatial structures.
回复此楼

» 本帖附件资源列表

  • 欢迎监督和反馈:小木虫仅提供交流平台,不对该内容负责。
    本内容由用户自主发布,如果其内容涉及到知识产权问题,其责任在于用户本人,如对版权有异议,请联系邮箱:xiaomuchong@tal.com
  • 附件 1 : Chemical_Vapor_Deposition_of_Graphene_Single_Crystals.pdf
  • 2014-02-18 09:12:48, 2.58 M

» 收录本帖的淘帖专辑推荐

我喜爱的材料类书籍 纳米材料+光电子学

» 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
简单回复
sidalixue2楼
2014-02-19 16:04   回复  
五星好评  顶一下,感谢分享!
colinru3楼
2014-02-21 14:12   回复  
五星好评  顶一下,感谢分享!
spyan5814楼
2014-02-22 00:29   回复  
五星好评  顶一下,感谢分享!
杨sir5楼
2014-02-24 15:33   回复  
五星好评  顶一下,感谢分享!
laiwuljj6楼
2014-02-26 15:07   回复  
五星好评  顶一下,感谢分享!
2014-03-02 21:01   回复  
五星好评  顶一下,感谢分享!
杨sir8楼
2014-03-21 09:45   回复  
顶一下,感谢分享!
2014-04-15 15:09   回复  
五星好评  顶一下,感谢分享!
wggihc17610楼
2014-04-26 21:48   回复  
五星好评  顶一下,感谢分享!
雀清枫11楼
2014-06-30 15:04   回复  
五星好评  顶一下,感谢分享!
朱十三12楼
2014-07-05 16:10   回复  
五星好评  顶一下,感谢分享!
gqken13楼
2014-07-05 22:05   回复  
五星好评  顶一下,感谢分享!
宋闯14楼
2014-07-13 21:57   回复  
一般  顶一下,感谢分享!
solo.v15楼
2014-08-14 10:00   回复  
三星好评  顶一下,感谢分享!
ztfly16楼
2014-10-13 17:01   回复  
五星好评  顶一下,感谢分享!
jinsling17楼
2014-10-16 10:55   回复  
五星好评  顶一下,感谢分享
yhrcsu18楼
2014-10-20 22:24   回复  
五星好评  顶一下,感谢分享!
朱十三19楼
2014-11-21 12:14   回复  
顶一下,感谢分享!
leirenbo20楼
2014-11-26 11:10   回复  
五星好评  顶一下,感谢分享!
kw824321楼
2015-01-12 13:45   回复  
五星好评  顶一下,感谢分享!
2015-04-02 15:40   回复  
五星好评  顶一下,感谢分享!
aazhuzhu23楼
2015-05-28 10:06   回复  
五星好评  顶一下,感谢分享!
kings0124楼
2016-07-23 17:00   回复  
五星好评  顶一下,感谢分享!
feifei060125楼
2016-09-29 21:09   回复  
五星好评  顶一下,感谢分享!
2016-10-05 00:00   回复  
五星好评  顶一下,感谢分享!
相关版块跳转 我要订阅楼主 knightxx 的主题更新
☆ 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
[基金申请] 科研孤儿太难了 +12 我4大白菜 2026-08-20 13/650 2026-08-20 20:55 by gltch
[基金申请] 言之凿凿,明天官网会通知放榜? +15 医学老男孩 2026-08-20 17/850 2026-08-20 20:35 by CaoLG
[基金申请] 时间戳变了,能看出什么问题? +18 基诺咪客 2026-08-17 23/1150 2026-08-20 17:19 by Godzela
[基金申请] 只有每年这种时候来逛逛小木虫 +21 yaoyewhu2008 2026-08-20 22/1100 2026-08-20 17:03 by yaoyewhu2008
[基金申请] 放榜前的不淡定 40+3 snowwithsea 2026-08-19 12/600 2026-08-20 15:56 by lfy8008
[基金申请] 重要消息,中午系统在维护 +11 yuleib84 2026-08-18 12/600 2026-08-20 11:09 by xskun
[基金申请] 今天基金会出结果吗?20260819 +14 kkkl_v 2026-08-19 15/750 2026-08-20 08:21 by sunzitan
[教师之家] 为什么余额宝的年化利率越来越低?主要原因有哪些? +5 瞬息宇宙 2026-08-15 5/250 2026-08-19 20:23 by super2002521
[基金申请] 今天放榜没戏了吧 +4 yuleib84 2026-08-19 5/250 2026-08-19 19:52 by hhs666
[基金申请] 今天放榜吗? +14 布布和一二 2026-08-19 15/750 2026-08-19 18:07 by gltch
[基金申请] filecode=后面第一个是大写字母 +10 wangze12014 2026-08-14 12/600 2026-08-19 16:56 by 苦难博士
[基金申请] 快农历七夕节了,轻松一下,男人悄悄话,女施主请不要进来。 +6 Tide man 2026-08-14 7/350 2026-08-19 09:56 by ZJTJZ
[基金申请] 什么时候开奖? +6 CrisMessi 2026-08-18 6/300 2026-08-19 08:06 by Equinoxhua
[基金申请] 明天放榜? +5 Shxjjxjkx 2026-08-18 5/250 2026-08-18 18:14 by -大大大大大-
[论文投稿] 投稿咨询 +4 wwm09 2026-08-17 6/300 2026-08-18 15:36 by wwm09
[基金申请] 今天维护系统维护 祝所有人 高中 +8 gjjjzhong 2026-08-18 9/450 2026-08-18 13:01 by 家与远方
[基金申请] 93BebMhtakh前后11位开头都是大写 +4 且听虎啸 2026-08-17 5/250 2026-08-18 00:49 by 蔡棒棒菂
[基金申请] 感觉是下周放榜了 +6 angus9576 2026-08-17 11/550 2026-08-17 23:57 by angus9576
[精细化工] 招聘 金属平磨液,抛光液研发工程师 +3 小天0311 2026-08-14 3/150 2026-08-16 07:31 by H9PLUS
[基金申请] 各位道友,我要去昆明玩几天,回来见。 +7 Tide man 2026-08-14 8/400 2026-08-15 01:11 by arzu_hma
信息提示
请填处理意见