The essential properties of monolayer silicene greatly enriched by boron substitutions are thoroughly explored through first-principles calculations. Delicate analyses are conducted on the highly non-uniform Moire superlattices, atom-dominated band structures, charge density distributions and atom- and orbital-decomposed van Hove singularities. The hybridized 2 -3 and [2s, 2 , 2 ]-[3s, 3 , 3 ] bondings, with orthogonal relations, are obtained from the developed theoretical framework. The red-shifted Fermi level and the modified Dirac cones/ bands/ bands are clearly identified under various concentrations and configurations of boron-guest atoms. Our results demonstrate that the charge transfer leads to the non-uniform chemical environment that creates diverse electronic properties.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7813228PMC
http://dx.doi.org/10.1098/rsos.200723DOI Listing

Publication Analysis

Top Keywords

rich -type-doping
4
-type-doping phenomena
4
phenomena boron-substituted
4
boron-substituted silicene
4
silicene systems
4
systems essential
4
essential properties
4
properties monolayer
4
monolayer silicene
4
silicene greatly
4

Similar Publications

Hybrid Density Functional Study on the -Type Conductivity Mechanism in Intrinsic Point Defects and Group V Element-Doped 2D β-TeO.

ACS Appl Mater Interfaces

October 2024

Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, China.

Article Synopsis
  • The study investigates the properties of a newly discovered two-dimensional material, β-TeO, which has high -type carrier mobility, making it promising for electronics.
  • It analyzes intrinsic point defects and element doping, particularly focusing on bismuth (Bi) as a dopant to enhance -type conductivity in β-TeO, demonstrating its potential through computational methods.
  • The results indicate that while vacancy defects cannot induce -type conductivity, Bi doping significantly improves carrier mobility and -type conductivity, making Bi an ideal candidate for modifications in 2D β-TeO.
View Article and Find Full Text PDF

Silicon Clathrate-Supported Catalysts with Low Work Functions for Ammonia Synthesis.

Adv Mater

December 2024

KAUST Catalysis Center, and Center for Renewable Energy and Storage Technologies (CREST), Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.

Diamond-type silicon has a work function of ≈4.8 eV, and conventional n- or p-type doping modifies the value only between 4.6 and 5.

View Article and Find Full Text PDF

GaO has emerged as a promising material for the wide-bandgap industry aiming at devices beyond the limits of conventional silicon. Amorphous GaO is widely being used for flexible electronics, but suffers from very high resistivity. Conventional methods of doping like ion implantation require high temperatures post-processing, thereby limiting their use.

View Article and Find Full Text PDF

Being motivated by a recently synthesized biphenylene carbon monolayer (BPN), using first principles methods, we have studied its inorganic analogue (B-N analogue) named I-BPN. A comparative study of structural, electronic and mechanical properties between BPN and I-BPN was carried out. Like BPN, the stability of I-BPN was verified in terms of formation energy, phonon dispersion calculations, and mechanical parameters (Young's modulus and Poisson's ratio).

View Article and Find Full Text PDF

Blade coating has been developed to be an essential technique for large-area fabrication of perovskite solar cells (PSCs). However, effective surface treatment of the perovskite layer, which is a critical step for improving PSC performance, remains challenges during blade coating due to the short interaction time between the modification solution and the perovskite layer, as well as the limited selection of available organic solvents. In this study, a novel modifier N,N-diphenylguanidine monohydrobromide (DPGABr) dissolved in acetonitrile (ACN) is blade coated on the MA FA PbI surface in air to reconstruct the perovskite surface in hundreds of milliseconds.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!