Publication detail

2D Functionalized Germananes: Synthesis and Applications

NG, S. PUMERA, M.

Original Title

2D Functionalized Germananes: Synthesis and Applications

Type

journal article in Web of Science

Language

English

Original Abstract

In the realm of 2D layered materials, the monoelemental group 14 Xene, germanene, as the germanium analog of graphene, has emerged as the next prospective candidate. Preceded by silicon, germanium is widely used in the semiconductor industry; thus, germanene is deemed compatible with existing semiconductor technologies. Germanene consists of mixed sp(2)-sp(3)-hybridized networks in a buckled hexagonal honeycomb structure. Chemical exfoliation of Zintl phases, such as CaGe2, specifically the topotactical deintercalation in acidic media, removes the alkaline earth metal ions Ca2+, giving rise to layered germanane (germanene with the Ge centers covalently saturated with terminal hydrogen atoms). Diverse variants of functionalized germananes (with covalent group(s) termination) can be obtained by varying the topotactical deintercalation precursors, elevating the game with limitless functionalization possibilities for customizable properties or new functionalities. The preparation of Zintl phases to the details of functionalized and modified germananes and their properties, and the additional exfoliation step to achieve mono- or few-layer germananes, are comprehensively covered. The progress and challenges of 2D functionalized germananes in optoelectronics, catalysis, energy conversion and storage, sensors, and biomedical areas are reviewed. This review provides insight into designing and exploring this class of atomically thin semiconductors in realizing future nanoarchitectonics.

Keywords

chemical exfoliation; covalent functionalization; germanene; group-14 layered-materials; topochemical deintercalation; Xanes; Xenes

Authors

NG, S.; PUMERA, M.

Released

16. 2. 2023

Publisher

WILEY-V C H VERLAG GMBH

Location

WEINHEIM

ISBN

1521-4095

Periodical

ADVANCED MATERIALS

Year of study

35

Number

7

State

Federal Republic of Germany

Pages from

2207196

Pages to

2207232

Pages count

37

URL

https://onlinelibrary.wiley.com/doi/10.1002/adma.202207196

BibTex

@article{BUT182386,
  author="Siow Woon {Ng} and Martin {Pumera}",
  title="2D Functionalized Germananes: Synthesis and Applications",
  journal="ADVANCED MATERIALS",
  year="2023",
  volume="35",
  number="7",
  pages="37",
  doi="10.1002/adma.202207196",
  issn="1521-4095",
  url="https://onlinelibrary.wiley.com/doi/10.1002/adma.202207196"
}