Carbon has numerous one-dimensional (1D), two-dimensional (2D), and three-dimensional
(3D) allotropic structures. The study of carbon materials has long been a major focus of …

High-quality defect-free lonsdaleite Si and Ge can now be grown on hexagonal nanowire
substrates. These hexagonal phases of group-IV semiconductors have been predicted to …

Advances in the fabrication and characterization of nanowires polytypes have made crystal
phase engineering a well-established tool to tailor material properties. In this review, recent …

Hexagonal germanium in the lonsdaleite structure has a direct band gap, but it is not an
efficient light emitter due to the vanishing oscillator strength of electronic transitions at the …

The structural, elastic, elastic anisotropic, thermodynamic and electronic properties of
Lonsdaleite C, Si and Ge and Lonsdaleite C–Si and Si–Ge alloys are investigated using …

Recent advances in the fabrication of group IV homojunctions made by cubic-diamond (3C)
and hexagonal-diamond (2H) phases call for a detailed understanding of the physics …

A new hexagonal phase of Si 1− x Ge x alloys have been successfully synthesized through
efforts in recent reports. Utilizing the combined first-principle calculations and special quasi …

Hexagonal SiGe is a promising material for combining electronic and photonic technologies.
In this paper, the energetic, structural, elastic, and electronic properties of the hexagonal …

We demonstrate the merits of an unexplored precursor, tetrasilane (Si 4 H 10), as compared
to disilane (Si 2 H 6) for the growth of defect-free, epitaxial hexagonal silicon (Si). We …

The semiconductor technology has brought us an incredible new step in our quality of life.
An integrated circuit (IC), also know as a computer chip, can now not only be found in your …