| 查看: 594 | 回复: 2 | ||||
[交流]
Graphene Films Immobilized via Covalent Bonds and Their Applications in OFET 已有2人参与
|
|
Title: Highly Stable Graphene-based Multilayer Films Immobilized via Covalent Bonds and Their Applications in Organic Field-Effect Transistors 链接: http://onlinelibrary.wiley.com/d ... .201202586/abstract Abstract: In this paper, we report that highly stable graphene oxide (GO)-based multilayered ultrathin films could be covalently immobilized on solid supports through a covalent-based method. It is demonstrated that when (3-aminopropyl) trimethoxysilane (APTMS), which works as a covalent cross-link agent, and GO nanosheets are assembled in an layer-by-layer (LBL) manner, GO nanosheets could be covalently grafted on the solid substrate successfully to produce uniform multilayered (APTMS/GO)N films over large area surface. Fascinatingly, it is found that compared with the conventional noncovalent LBL films constructed by electrostatic interactions, those assembled through our covalent-based method could display much higher stability and reproducibility. Upon the thermal annealing-induced reduction of the covalent (APTMS/GO)N films, the obtained reduced GO (RGO) films, (APTMS/RGO)N, could preserve their basic structural characters very well. We further disclose that the as-prepared covalent (APTMS/RGO)N multilayer films could be used as highly stable source/drain electrodes in organic field-effect transistors (OFETs). It is found that when the number of bilayers of the (APTMS/RGO)N film exceeds 2 (ca. 2.7 nm), the OFETs based on our (APTMS/RGO)N electrodes could display much higher electrical performances than that of the devices based on 40 nm Au electrodes. The experimental results indicate that this could be ascribed to their lower contact resistance, which is resulted from their relatively lower hole injection barrier. The covalent protocol proposed hereby might open up new and varied opportunities for the construction of graphene-based ultrathin films with an excellent stability and reproducibility, which are substantially desired for the practical applications to withstand the multi-step post-production process. Highlighted by MaterialsViews and Nanotechnology Now 链接: http://www.materialsviews.com/hi ... -covalent-protocol/ 链接: http://www.nanotech-now.com/news.cgi?story_id=46565  20121029-Figure for TOC(adfm 201002586).jpg |
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 : 201202586_ftp.pdf
2012-12-30 16:29:41, 3.29 M
» 收录本帖的淘帖专辑推荐
 国外专业电子书 |
» 本帖已获得的红花（最新10朵）
» 猜你喜欢
为什么余额宝的年化利率越来越低？主要原因有哪些？
已经有4人回复
-
今天放榜吗？
已经有13人回复
-
filecode，4个jtjc了
已经有9人回复
-
今天基金会出结果吗？20260819
已经有8人回复
-
欢迎发来filecode的Mz6后的代码验证其规律
已经有115人回复
-
2027广东省杰青
已经有10人回复
-
朋友圈看到的
已经有8人回复
-
时间戳变了，能看出什么问题？
已经有14人回复
-
咱们一起用铁证分析2026国家社科基金中标与否
已经有30人回复
-
快农历七夕节了，轻松一下，男人悄悄话，女施主请不要进来。
已经有7人回复
送鲜花一朵
 |
2楼2013-01-23 11:13:42
送鲜花一朵 |
|
3楼2013-02-04 21:39:25
