首页> 外文期刊>Bulletin of the American Physical Society >APS -APS March Meeting 2017 - Event - Investigation of factors that influence the quality of van der Waals heterostructures made by direct pick-up
【24h】

APS -APS March Meeting 2017 - Event - Investigation of factors that influence the quality of van der Waals heterostructures made by direct pick-up

机译:APS -APS 2017年3月会议-活动-通过直接拾取影响范德华异质结构质量的因素调查

获取原文
           

摘要

Two dimensional material van der Waals heterostructures, such as twisted bilayer graphene, can be assembled by the prevailing pick-up procedure.footnote{K. Kim et al. extbf{Nano Lett.} 16.3:1998 (2016)} footnote{Y. Cao et al. extbf{Phys. Rev. Lett.} 117.11:116804(2016)} However, the size and the quality of the devices are limited by defects such as ``Bubbles'' in the samples. We investigate sources that can impair the quality of van der Waals heterostructures using optical, atomic force microscope, and scanning electron microscope imaging. Choices of polymer layers for picking up, schemes of stacking heterostructures, and influences of pre- and post- furnace annealing for stack fabrication are studied. In conjunction with transport measurements, we refine the procedure for making high-quality twisted bilayer graphene and other heterostructure devices.
机译:二维材料范德华异质结构,例如扭曲的双层石墨烯,可以通过普遍的拾取程序组装。脚注{K. Kim等。 extbf {Nano Lett。} 16.3:1998(2016)}脚注{Y。曹等。 extbf {Phys。 Rev. Lett。} 117.11:116804(2016)}但是,设备的尺寸和质量受到样品中“气泡”等缺陷的限制。我们使用光学,原子力显微镜和扫描电子显微镜成像技术研究可破坏范德华异质结构质量的来源。研究了用于拾取的聚合物层的选择,堆叠异质结构的方案以及堆垛制造前和后炉退火的影响。结合传输测量,我们改进了制造高质量扭曲双层石墨烯和其他异质结构器件的过程。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号