Ultrahigh-performance transparent conductive films of carbon-welded isolated single-wall carbon nanotubes
文献类型：期刊论文
| 作者 | Jiang, S; Hou, PX; Chen, ML; Wang, BW; Sun, DM; Tang, DM; Jin, Q; Guo, QX; Zhang, DD; Du, JH |
| 刊名 | SCIENCE ADVANCES
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 4期号:5页码:- |
| 关键词 | Light-emitting-diodes Optoelectronic Devices Thin-films Electrodes Networks Phase |
| ISSN号 | 2375-2548 |
| 英文摘要 | Single-wall carbon nanotubes (SWCNTs) are ideal for fabricating transparent conductive films because of their small diameter, good optical and electrical properties, and excellent flexibility. However, a high intertube Schottky junction resistance, together with the existence of aggregated bundles of SWCNTs, leads to a degraded optoelectronic performance of the films. We report a network of isolated SWCNTs prepared by an injection floating catalyst chemical vapor deposition method, in which crossed SWCNTs are welded together by graphitic carbon. Pristine SWCNT films show a record low sheet resistance of 41 ohm rectangle(-1) at 90% transmittance for 550-nm light. After HNO3 treatment, the sheet resistance further decreases to 25 ohm rectangle(-1). Organic light-emitting diodes using this SWCNT film as anodes demonstrate a low turn-on voltage of 2.5 V, a high current efficiency of 75 cd A(-1), and excellent flexibility. Investigation of isolated SWCNT-based field-effect transistors shows that the carbon-welded joints convert the Schottky contacts between metallic and semiconducting SWCNTs into near-ohmic ones, which significantly improves the conductivity of the transparent SWCNT network. Our work provides a new avenue of assembling individual SWCNTs into macroscopic thin films, which demonstrate great potential for use as transparent electrodes in various flexible electronics.; Single-wall carbon nanotubes (SWCNTs) are ideal for fabricating transparent conductive films because of their small diameter, good optical and electrical properties, and excellent flexibility. However, a high intertube Schottky junction resistance, together with the existence of aggregated bundles of SWCNTs, leads to a degraded optoelectronic performance of the films. We report a network of isolated SWCNTs prepared by an injection floating catalyst chemical vapor deposition method, in which crossed SWCNTs are welded together by graphitic carbon. Pristine SWCNT films show a record low sheet resistance of 41 ohm rectangle(-1) at 90% transmittance for 550-nm light. After HNO3 treatment, the sheet resistance further decreases to 25 ohm rectangle(-1). Organic light-emitting diodes using this SWCNT film as anodes demonstrate a low turn-on voltage of 2.5 V, a high current efficiency of 75 cd A(-1), and excellent flexibility. Investigation of isolated SWCNT-based field-effect transistors shows that the carbon-welded joints convert the Schottky contacts between metallic and semiconducting SWCNTs into near-ohmic ones, which significantly improves the conductivity of the transparent SWCNT network. Our work provides a new avenue of assembling individual SWCNTs into macroscopic thin films, which demonstrate great potential for use as transparent electrodes in various flexible electronics. |
| 学科主题 | Multidisciplinary Sciences |
| 语种 | 英语 |
| 资助机构 | Ministry of Science and Technology of China [2016YFA0200101]; National Natural Science Foundation of China [51625203, 51532008, 51521091, 51772303, 51572264, 51390473, 51371178, 51372254]; Chinese Academy of Sciences [KGZD-EW-T06]; CAS/SAFEA (Chinese Academy of Sciences/State Administration of Foreign Experts Affairs) International Partnership Program for Creative Research Teams; Molecular and Thin Film Engineering for Building Integrated Photonics and Process Industry project of the Aalto University Aalto Energy Efficiency Research Programme; Liaoning BaiQianWan Talents Program |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79315]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, C; Cheng, HM (reprint author), Chinese Acad Sci, Shenyang Nat Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.; Cheng, HM (reprint author), ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China.; Cheng, HM (reprint author), Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China.; Cheng, HM (reprint author), Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Jiang, S,Hou, PX,Chen, ML,et al. Ultrahigh-performance transparent conductive films of carbon-welded isolated single-wall carbon nanotubes[J]. SCIENCE ADVANCES,2018,4(5):-. |
| APA | Jiang, S.,Hou, PX.,Chen, ML.,Wang, BW.,Sun, DM.,...&Cheng, HM .(2018).Ultrahigh-performance transparent conductive films of carbon-welded isolated single-wall carbon nanotubes.SCIENCE ADVANCES,4(5),-. |
| MLA | Jiang, S,et al."Ultrahigh-performance transparent conductive films of carbon-welded isolated single-wall carbon nanotubes".SCIENCE ADVANCES 4.5(2018):-. |
入库方式： OAI收割
来源：金属研究所
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