Abstract Since penta-graphene (PG), a two-dimensional (2D) carbon allotrope exclusively
composed of five-membered rings, was proposed in 2015, a great deal of effort has been …

The most direct and efficient strategy in designing and synthesizing new materials is to
change the structural building units, which could lead to a new paradigm shift. Penta …

Recently, a new two-dimensional (2D) carbon allotrope named penta-graphene was
theoretically proposed (Zhang, S.; et al. Proc. Natl. Acad. Sci. USA 2015, 112, 2372) and has …

Going beyond conventional hexagonal sheets, pentagonal 2D structures are of current
interest due to their novel properties and broad applications. Herein, for the first time, we …

Since the breakthrough of graphene, considerable efforts have been made to search for two-
dimensional (2D) materials composed of other group 14 elements, in particular silicon and …

Different from conventional 2D sliding ferroelectrics with polarization switchable in the out-of-
plane via interlayer sliding, we show the existence of in-plane sliding ferroelectricity in a …

Silicon is one of the most frequently used chemical elements of the periodic table in
nanotechnology (Goodilin et al., ACS Nano 2019, 13, 10879–10886). Two-dimensional …

Pentagonal 2D materials as a new member in the 2D material family have attracted
increasing attention due to the exotic physical properties originating from the unique Cairo …

Advanced and tremendous research in two-dimensional (2D) materials have unlocked
valuable capabilities that lead to a new materials era. Silicene, as a rising-star 2D material …

In the realm of two-dimensional (2D) materials, besides the ones initially peeled from
lamellar crystals, the artificial emerging elemental ones, called Xenes, appear as strong …