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Title: Clathrates and beyond: Low-density allotropy in crystalline silicon

Journal Article · · Applied Physics Reviews
DOI:https://doi.org/10.1063/1.4953165· OSTI ID:1465354
 [1];  [2];  [2]
  1. California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States). Dept. of Physics
  2. Univ. of South Florida, Tampa, FL (United States). Dept. of Physics

In its common, thermodynamically stable state, silicon adopts the same crystal structure as diamond. Although only a few alternative allotropic structures have been discovered and studied over the past six decades, advanced methods for structure prediction have recently suggested a remarkably rich low-density phase space that has only begun to be explored. The electronic properties of these low-density allotropes of silicon, predicted by first-principles calculations, indicate that these materials could offer a pathway to improving performance and reducing cost in a variety of electronic and energy-related applications. Here in this focus review, we provide an introduction and overview of recent theoretical and experimental results related to low-density allotropes of silicon, highlighting the significant potential these materials may have for technological applications, provided substantial challenges to their experimental preparation can be overcome.

Research Organization:
Univ. of South Florida, Tampa, FL (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FG02-04ER46145
OSTI ID:
1465354
Alternate ID(s):
OSTI ID: 1257501
Journal Information:
Applied Physics Reviews, Vol. 3, Issue 4; ISSN 1931-9401
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 23 works
Citation information provided by
Web of Science

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Cited By (6)

Silicon clathrates for photovoltaics predicted by a two-step crystal structure search journal October 2017
Control of thermal expansion in a low-density framework modification of silicon journal April 2018
A novel cage for actinides: A 6 W 4 Al 43 ( A   =  U and Pu) journal February 2019
Zintl Phases as Reactive Precursors for Synthesis of Novel Silicon and Germanium-Based Materials journal April 2019
Silicon clathrates for photovoltaics predicted by a two-step crystal structure search text January 2017
First-Principles Study of Sodium Intercalation in Crystalline Na x Si24 (0 ≤ x ≤ 4) as Anode Material for Na-ion Batteries journal July 2017

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