Ultrafast Field-Emission Electron Sources Based on Nanomaterials

Shenghan Zhou; Ke Chen; Matthew Thomas Cole; Zhenjun Li; Jun Chen; Chi Li; Qing Dai

doi:10.1002/adma.201805845

Ultrafast Field-Emission Electron Sources Based on Nanomaterials

Adv Mater. 2019 Nov;31(45):e1805845. doi: 10.1002/adma.201805845. Epub 2019 Feb 6.

Authors

Shenghan Zhou^{1

2}, Ke Chen^{1

2}, Matthew Thomas Cole^{1

2}, Zhenjun Li^{1

2}, Jun Chen^{1

2

3}, Chi Li^{1

2}, Qing Dai^{1

2}

Affiliations

¹ Division of Nanophotonics, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China.
² University of Chinese, Academy of Sciences, Beijing, 100049, P. R. China.
³ State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275, China.

PMID: 30724407
DOI: 10.1002/adma.201805845

Abstract

The search for electron sources with simultaneous optimal spatial and temporal resolution has become an area of intense activity for a wide variety of applications in the emerging fields of lightwave electronics and attosecond science. Most recently, increasing efforts are focused on the investigation of ultrafast field-emission phenomena of nanomaterials, which not only are fascinating from a fundamental scientific point of view, but also are of interest for a range of potential applications. Here, the current state-of-the-art in ultrafast field-emission, particularly sub-optical-cycle field emission, based on various nanostructures (e.g., metallic nanotips, carbon nanotubes) is reviewed. A number of promising nanomaterials and possible future research directions are also established.

Keywords: carbon nanotubes; field emission; graphene; lightwave electronics; optical field emission; ultrafast electron sources.

Publication types

Review

Abstract

Publication types

Grants and funding