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6CCVD Research

Zeolite framework silicon allotropes with direct band gap

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2022-10-25
JournalArabian Journal of Chemistry
AuthorsYanxing Song, Changchun Chai, Qingyang Fan, Wei Zhang, Yintang Yang
InstitutionsXiā€™an University of Architecture and Technology, Xidian University
Citations4

Abstract

Section titled ā€œAbstractā€

It is a significant issue in the field of semiconductor devices and optoelectronic devices to find silicon allotropes with high mobility, direct band gap and high light absorption to replace traditional diamond silicon (d-Si). By constructing a zeolite framework, fifteen silicon allotropes with a direct band gap of 0.47-1.66 eV were screened from hundreds of zeolite framework silicon allotropes by ab initio calculations. The crystal structures, stability, effective mass, mechanical, electronic and optical properties were comprehensively studied. Compared with diamond silicon, several allotropes showed easy doping, low carrier effective mass and high absorption of the solar spectrum, which indicate promising candidates for adoption in photovoltaic applications.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2001 - Theory of high pressure phases of Group-IV and III-V semiconductors
  2. 2015 - Low-density silicon allotropes for photovoltaic applications [Crossref]
  3. 1987 - Electrical properties of semimetallic silicon III and semiconductive silicon IV at ambient pressure [Crossref]
  4. 2012 - Low-energy silicon allotropes with strong absorption in the visible for photovoltaic applications [Crossref]
  5. 2015 - Novel silicon allotropes: stability, mechanical, and electronic properties [Crossref]
  6. 2016 - Two novel silicon phases with direct band gaps [Crossref]
  7. 2019 - t-Si64: a novel silicon allotrope [Crossref]
  8. 2021 - Stability, mechanical, anisotropic and electronic properties of oP8 carbon: a superhard carbon allotrope in orthorhombic phase [Crossref]
  9. 2022 - All sp2 hybridization BN polymorphs with wide bandgap [Crossref]

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