4.7 Article

Structural, Electronic, Optical, and potassium anodic electrochemical characteristics of 2-Dimensional Silicane: A density functional theory investigation

Journal

JOURNAL OF ELECTROANALYTICAL CHEMISTRY
Volume 938, Issue -, Pages -

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2023.117442

Keywords

Silicane; OCV; Energy barrier; PIBs; Optical performance

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The study investigates the characteristics of 2D silicane Si2H2 using density-functional theory and finds its stable structure and potential applications in optoelectronics and batteries. Silicane material is highly relevant in solar and anodic utilizations.
Two-dimensional (2D) graphene-like materials have attracted tremendous interest due to their remarkable properties in nanoelectronics. To understand and characterize the various physical properties of silicane rele-vant to optoelectronic and battery applications, various characteristics of 2D silicane Si2H2 are investigated using the density-functional theory. The structure of 2D Si2H2 is disclosed to be stable, which corroborates its experimental feasibility based on the computational outcomes. With absorption coefficients of about 73.08 (104/cm) and 158.86 (104/cm) at 7.63 eV and 7.66 eV, respectively, it is pertinent to optoelectronic devices. 2D silicane is an exemplary K anodic material, owing to its lesser average open-circuit voltage (OCV) (0.23) and superior theoretical capacity (506 mAhg-1). Afterward, we procured the lowest activation barrier (40 meV) for K migration, which implies the swift charge/discharge mechanism for potassium ion bat-teries (PIBs). Consequently, the current study guides the pathway for energy storage materials in the near future for anodic applications. These concomitant findings reinforce the pertinence of silicane material in solar and K anodic utilizations.

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