Clathrate thermoelectrics

JA Dolyniuk, B Owens-Baird, J Wang, JV Zaikina… - Materials Science and …, 2016 - Elsevier
Clathrates represent a fascinating class of inorganic materials with a unique structural motif:
3D framework with large polyhedral cages encapsulating guest ions. Weak electrostatic …

Zintl phases as reactive precursors for synthesis of novel silicon and germanium-based materials

M Beekman, SM Kauzlarich, L Doherty, GS Nolas - Materials, 2019 - mdpi.com
Recent experimental and theoretical work has demonstrated significant potential to tune the
properties of silicon and germanium by adjusting the mesostructure, nanostructure, and/or …

[HTML][HTML] Novel silicon phases and nanostructures for solar energy conversion

S Wippermann, Y He, M Vörös, G Galli - Applied Physics Reviews, 2016 - pubs.aip.org
Silicon exhibits a large variety of different bulk phases, allotropes, and composite structures,
such as, eg, clathrates or nanostructures, at both higher and lower densities compared with …

Low-density silicon allotropes for photovoltaic applications

M Amsler, S Botti, MAL Marques, TJ Lenosky… - Physical Review B, 2015 - APS
Silicon materials play a key role in many technologically relevant fields, ranging from the
electronic to the photovoltaic industry. A systematic search for silicon allotropes was …

[HTML][HTML] Cubic silicon carbide under tensile pressure: Spinodal instability

CP Herrero, R Ramírez, G Herrero-Saboya - Chemical Physics, 2023 - Elsevier
Silicon carbide is a hard, semiconducting material presenting many polytypes, whose
behavior under extreme conditions of pressure and temperature has attracted large interest …

P63/mmc-Ge and their Si–Ge alloys with a mouldable direct band gap

Q Fan, W Zhang, Y Song, W Zhang… - … Science and Technology, 2020 - iopscience.iop.org
Physical properties, such as stability, electronic properties, hole effective mass, electron
effective mass, mechanical properties, structural properties, and optical properties of P6 …

Nanoporous ices: an emerging class in the water/ice family

Y Liu, Y Pu, XC Zeng - Nanoscale, 2023 - pubs.rsc.org
The history of scientific research on diverse ice structures dates back to more than a century.
To date, 20 three-dimensional crystalline ice phases (ice I-ice XX) have been identified in …

Sampling polymorphs of ionic solids using random superlattices

V Stevanović - Physical Review Letters, 2016 - APS
Polymorphism offers rich and virtually unexplored space for discovering novel functional
materials. To harness this potential approaches capable of both exploring the space of …

Structural Origin of Reversible Li Insertion in Guest‐Free, Type‐II Silicon Clathrates

A Dopilka, JM Weller, A Ovchinnikov… - Advanced Energy …, 2021 - Wiley Online Library
The guest‐free, type‐II Si clathrate (Si136) is an open cage polymorph of Si with structural
features amenable to electrochemical Li storage. However, the detailed mechanism for …

Group IV clathrates for photovoltaic applications

T Kume, F Ohashi, S Nonomura - Japanese Journal of Applied …, 2017 - iopscience.iop.org
Recent studies on type-II Si/Ge clathrates for photovoltaic (PV) applications are reviewed.
The band-gap energies (E g) experimentally estimated for Si and Ge clathrates are …