晶片级手性一致单色超长碳纳米管的可控制备
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- 英文论文题名：Wafer-scale growth of chiral-consistent monochromatic ultralong carbon nanotubes
- 论文作者：朱振兴 ; 谢欢欢 ; 王琪 ; 魏飞
- 英文论文作者：Zhenxing Zhu ; Huanhuan Xie ; Qi Wang ; Fei Wei ; Department of Chemical Engineering ; Tsinghua University ; School of Aerospace Engineering ; Tsinghua University
- 年：2016
- 作者机构：清华大学化工系绿色反应工程与工艺北京市重点实验室;清华大学化学系&清华大学微纳米力学与多学科交叉创新研究中心;
- 论文关键词：超长碳纳米管 ; 大面积制备 ; 单一手性 ; 单一颜色
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十九分会：纳米碳材料
- 语种：中文
- 分类号：O613.71;TB383.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十九分会 ; 纳米碳材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：188k
- 原文格式：D
- 会议级别：全国
摘要
超长碳纳米管具有米级宏观长度,原子级完美结构以及接近碳纳米管理论极限的优越性能,而实现其规模化应用的一项重大挑战是晶片级超长碳纳米管的可控制备。此项工作中,我们设计了一种新型层状方形反应器(LCR),并用大型高温马弗炉作为加热设备替代传统的小尺寸圆管反应器-管式加热炉反应系统,突破了生长基底的尺寸限制,首次实现了5片4英寸晶片级超长碳纳米管同时制备。这种晶片级超长碳纳米管可在大气环境下借助冷凝蒸汽实现肉眼可见,避免电子显微镜腔体对样品尺寸的限制;拉曼光谱和瑞利光谱证明单根超长碳纳米管具有完美结构和单一手性;基于单根超长碳纳米管制作的场效应晶体管开关比高达10~7,进一步验证其半导体性质。这种基于LCR的规模化反应装置将推进未来大规模光电器件应用。
In this work, we have designed a new layered cuboid reactor(LCR) and replaced the original tube furnace with a larger muffle furnace, achieving simultaneous synthesis of more than five 4-inch wafers of ultralong CNTs for the first time. Ultralong CNTs on these wafers could be directly observed by naked eyes in ambient conditions assisted with condensed vapor. Furthermore, Raman spectra and Rayleigh scatting demonstrated the perfect structure of as-prepared ultralong CNTs with consistent chirality. Field effect transistors fabricated from as-prepared ultralong CNTs exhibited a high on/off ratio of 10~7. This approach will contribute to large-scale optoelectronic applications.
In this work, we have designed a new layered cuboid reactor(LCR) and replaced the original tube furnace with a larger muffle furnace, achieving simultaneous synthesis of more than five 4-inch wafers of ultralong CNTs for the first time. Ultralong CNTs on these wafers could be directly observed by naked eyes in ambient conditions assisted with condensed vapor. Furthermore, Raman spectra and Rayleigh scatting demonstrated the perfect structure of as-prepared ultralong CNTs with consistent chirality. Field effect transistors fabricated from as-prepared ultralong CNTs exhibited a high on/off ratio of 10~7. This approach will contribute to large-scale optoelectronic applications.
引文
[1]张如范,张莹莹,谢欢欢,张强,骞伟中,魏飞.中国科学?化学,2015,45(10):979-1009.
[2]Wu W.;Yue J.;Lin X.;Li D.;Zhu F.;et al.Nano Research 2015,8(8):2721-2732.
[2]Wu W.;Yue J.;Lin X.;Li D.;Zhu F.;et al.Nano Research 2015,8(8):2721-2732.