Germanene nanotubes

Hsin Yi Liu, Shih Yang Lin, Vo Khuong Dien, Chi Hsuan Lee, Hai Duong Pham, Thi My Duyen Huynh, Nguyen Thi Han, Ngoc Thanh Thuy Tran, Thi Dieu Hien Nguyen, Wei Bang Li, Ming Fa Lin

Research output: Chapter in Book/Report/Conference proceedingChapter


In this chapter, the various electronic properties of germanium nanotubes (GeNTs) were investigated by the density functional theory. The cooperative and competitive relationships between the chiral angle, periodic boundary conditions, and multi-orbital hybridizations create unusual narrow gaps and quasi-flat bands in the ultra-small armchair and zigzag tubes, respectively. The features varied dramatically with tube radii. Armchair GeNTs (aGeNTs) have an indirect-to-direct band gap transition as their radius is increased to a particular value, while zigzag GeNTs (zGeNTs) present a metalsemiconductor transition. The projected density of states was used to elucidate the critical transitions, and the evolution of p and s orbital mixing states during the process are discussed in detail. The information presented here provides a better understanding of the essential properties of GeNTs.

Original languageEnglish
Title of host publicationFundamental Physicochemical Properties of Germanene-related Materials
Number of pages24
ISBN (Electronic)9780443158018
ISBN (Print)9780443158025
Publication statusPublished - 2023 Jan 1

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Materials Science


Dive into the research topics of 'Germanene nanotubes'. Together they form a unique fingerprint.

Cite this