Recent progress on phase engineering of nanomaterials

Q Yun, Y Ge, Z Shi, J Liu, X Wang, A Zhang… - Chemical …, 2023 - ACS Publications
As a key structural parameter, phase depicts the arrangement of atoms in materials.
Normally, a nanomaterial exists in its thermodynamically stable crystal phase. With the …

Nature of hexagonal silicon forming via high-pressure synthesis: nanostructured hexagonal 4H polytype

S Pandolfi, C Renero-Lecuna, Y Le Godec… - Nano …, 2018 - ACS Publications
Hexagonal Si allotropes are expected to enhance light absorption in the visible range as
compared to common cubic Si with diamond structure. Therefore, synthesis of these …

Metastable group IV allotropes and solid solutions: Nanoparticles and nanowires

S Barth, MS Seifner, S Maldonado - Chemistry of Materials, 2020 - ACS Publications
In the past decades, group IV nanowires and nanoparticles have been the subject of
extensive research. Beside tremendous progress in morphological control and integration in …

Electronic structure and optical properties of semiconductor nanowires polytypes

LH Galvão Tizei, M Amato - The European Physical Journal B, 2020 - Springer
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 …

Crystalline, phononic, and electronic properties of heterostructured polytypic Ge nanowires by Raman spectroscopy

C Fasolato, M De Luca, D Djomani, L Vincent… - Nano …, 2018 - ACS Publications
Semiconducting nanowires (NWs) offer the unprecedented opportunity to host different
crystal phases in a nanostructure, which enables the formation of polytypic heterostructures …

Vapor–liquid–solid growth of semiconductor nanowires

VG Dubrovskii, F Glas - Fundamental properties of semiconductor …, 2021 - Springer
We discuss the growth of semiconductor nanowires, with an emphasis on the vapor–liquid–
solid growth of III–V nanowires. Special attention is paid to modeling of growth and the …

Topological insulator overlayer to enhance the sensitivity and detection limit of surface plasmon resonance sensor

J Zhu, Y Ke, J Dai, Q You, L Wu, J Li, J Guo, Y Xiang… - …, 2020 - degruyter.com
Surface plasmon resonance (SPR) sensors have been applied in a wide range of
applications for real-time and label-free detection. In this article, by covering the topological …

Direct evidence of 2H hexagonal Si in Si nanowires

Z He, JL Maurice, Q Li, D Pribat - Nanoscale, 2019 - pubs.rsc.org
Hexagonal Si (2H polytype) has attracted great interest because of its unique physical
properties and wide range of potential applications. For example, it might be used in …

Structural Dynamics, Phonon Spectra and Thermal Transport in the Silicon Clathrates

B Wei, JM Flitcroft, JM Skelton - Molecules, 2022 - mdpi.com
The potential of thermoelectric power to reduce energy waste and mitigate climate change
has led to renewed interest in “phonon-glass electron-crystal” materials, of which the …

Thermal conductivity for III-V and II-VI semiconductor wurtzite and zinc-blende polytypes: The role of anharmonicity and phase space

M Raya-Moreno, R Rurali, X Cartoixà - Physical Review Materials, 2019 - APS
We calculate the lattice thermal conductivity (κ) for cubic (zinc-blende) and hexagonal
(wurtzite) phases for eight semiconductors using ab initio calculations and solving the …