| 查看: 13690 | 回复: 345 | ||||
| 本帖产生 1 个 MN-EPI ，点击这里进行查看 | ||||
| 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 | ||||
xiejf专家顾问 (文学泰斗)
|
[资源]
Nature最新石墨烯进展：大面积石墨烯的面对面转移技术
|
|||
|
最新一期的Nature杂志刊发了新加坡国立大学Kian Ping Loh课题组关于石墨烯的最新研究论文，题为Face-to-face transfer of wafer-scale graphene films，介绍了大面积石墨烯的新颖的转移技术，成果发在Nature正刊上，值得学习！ Graphene has attracted worldwide interest since its experimental discovery1, 2, but the preparation of large-area, continuous graphene film on SiO2/Si wafers, free from growth-related morphological defects or transfer-induced cracks and folds, remains a formidable challenge3. Growth of graphene by chemical vapour deposition on Cu foils4, 5, 6, 7 has emerged as a powerful technique owing to its compatibility with industrial-scale roll-to-roll technology6. However, the polycrystalline nature and microscopic roughness of Cu foils means that such roll-to-roll transferred films are not devoid of cracks and folds6, 7. High-fidelity transfer or direct growth of high-quality graphene films on arbitrary substrates is needed to enable wide-ranging applications in photonics or electronics, which include devices such as optoelectronic modulators, transistors, on-chip biosensors and tunnelling barriers3, 8, 9. The direct growth of graphene film on an insulating substrate, such as a SiO2/Si wafer, would be useful for this purpose, but current research efforts remain grounded at the proof-of-concept stage, where only discontinuous, nanometre-sized islands can be obtained10. Here we develop a face-to-face transfer method for wafer-scale graphene films that is so far the only known way to accomplish both the growth and transfer steps on one wafer. This spontaneous transfer method relies on nascent gas bubbles and capillary bridges between the graphene film and the underlying substrate during etching of the metal catalyst, which is analogous to the method used by tree frogs to remain attached to submerged leaves11, 12. In contrast to the previous wet4, 5, 13, 14, 15 or dry6, 7 transfer results, the face-to-face transfer does not have to be done by hand and is compatible with any size and shape of substrate; this approach also enjoys the benefit of a much reduced density of transfer defects compared with the conventional transfer method. Most importantly, the direct growth and spontaneous attachment of graphene on the underlying substrate is amenable to batch processing in a semiconductor production line, and thus will speed up the technological application of graphene. /  nature12763-f2.jpg [ Last edited by xiejf on 2014-1-10 at 08:29 ] |
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 : Face-to-face_transfer_of_wafer-scale_graphene_films-S.pdf
- 附件 2 : Face-to-face_transfer_of_wafer-scale_graphene_films.pdf
2014-01-09 21:41:56, 1.16 M
2014-01-09 21:41:58, 918.31 K
» 本帖已获得的红花（最新10朵）
沙沙的rain» 猜你喜欢
非晶合金
已经有2人回复
-
院士团队-每届学生都优秀-高自由度-团队氛围好
已经有0人回复
-
金属材料论文润色/翻译怎么收费?
已经有75人回复
-
求调剂
已经有3人回复
-
化工学院（学院正式调剂群+联系方式）
已经有0人回复
-
化工学院（学院官方群）-院士团队招生-学生自由度高-培养模式成熟高效
已经有0人回复
-
黑龙江大学分析化学招调剂
已经有0人回复
-
武汉高校国家级人才团队招收材料，化学，纺织等专业硕士调剂生
已经有26人回复
-
纺大化工学院（官方群）-院士团队招生-学生自由度高发展好-培养模式成熟
已经有0人回复
-
温州大学化材学院王娟课题组招生
已经有5人回复
-
学院官方群-院士团队招生-学生自由度高-培养模式成熟已有10余名学生赴985海外深造
已经有0人回复
» 本主题相关商家推荐: (我也要在这里推广)
97楼2014-01-13 03:46:17
8楼2014-01-09 22:06:40
9楼2014-01-09 22:11:01
14楼2014-01-09 23:07:33
简单回复
pwhboy4楼
2014-01-09 21:59
回复
五星好评 顶一下，感谢分享！
skyfly6楼
2014-01-09 22:03
回复
五星好评 顶一下，感谢分享！
lxhsty7楼
2014-01-09 22:06
回复
五星好评 顶一下，感谢分享！
yf.li10楼
2014-01-09 22:33
回复
五星好评 顶一下，感谢分享！
jacob25811楼
2014-01-09 22:48
回复
五星好评 顶一下，感谢分享！
seinberg12楼
2014-01-09 22:53
回复
五星好评 顶一下，感谢分享！
