Bandgap engineering of germanene for gas sensing applications

Le, Ong Kim; Chihaia, Viorel; Son, Do Ngoc

doi:10.1039/d3ra05927h

RSC Adv.

2023

DOI: 10.1039/d3ra05927h

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Bandgap engineering of germanene for gas sensing applications

Ong Kim Le,

Viorel Chihaia,

Do Ngoc Son

Abstract: The bandgaps of germanene substrates with and without adsorption of gases have been computed by various schemes. Physical insights into the interaction between the germanene substrates and volatile organic compounds have been elucidated.

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2024

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Cited by 3 publications

References 71 publications

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Research on N, Ne, and P adsorption on boron-germanene nanoribbons for nano sensor applications

Ngoc,

Phuong Thuy

2024

Computational and Theoretical Chemistry

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Research on N, Ne, and P adsorption on boron-germanene nanoribbons for nano sensor applications

Ngoc,

Phuong Thuy

2024

Computational and Theoretical Chemistry

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Graphene oxide and silicene as 2D platforms for complexation and intracellular delivery of siRNA

Razavi,

Raissi,

Farzad

2024

Journal of Drug Delivery Science and Technology

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Adsorption behavior of toxic nitrogen-containing gas molecules on GeC monolayer for the sensitive and reusable gas sensors: first-principles calculations

Thajitr,

Busayaporn,

Sukkabot

2024

Phys. Scr.

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Using the first-principles calculations, the gas sensing properties of GeC monolayer are analyzed to explore the possibilities in the toxic nitrogen-containing molecular sensors to detect NH3, NO2 and NO molecules. The adsorption behavior is computed under different stable adsorption configurations. NH3 is physically adsorbed on GeC monolayer with modest adsorption energies (Eads = −0.487 eV). NO2 is chemisorbed on GeC monolayer with Eads of −0.770 eV. NO is either physisorbed or chemisorbed on GeC monolayer with Eads of −0.437 eV or −0.605 eV depending on the stable adsorption configurations. NO2 and NO molecule dramatically change the electronic properties of GeC monolayer, while NH3 molecule barely modifies those of GeC monolayer. Because of the change in the electric conductivity, the descending order of the sensitivity is NO2 > NO > NH3. Finally, the quick recovery times are found for all molecules which determine the worth of reusability of a sensing material.

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Bandgap engineering of germanene for gas sensing applications

Abstract: The bandgaps of germanene substrates with and without adsorption of gases have been computed by various schemes. Physical insights into the interaction between the germanene substrates and volatile organic compounds have been elucidated.

Cited by 3 publications

References 71 publications

Research on N, Ne, and P adsorption on boron-germanene nanoribbons for nano sensor applications

Research on N, Ne, and P adsorption on boron-germanene nanoribbons for nano sensor applications

Graphene oxide and silicene as 2D platforms for complexation and intracellular delivery of siRNA

Adsorption behavior of toxic nitrogen-containing gas molecules on GeC monolayer for the sensitive and reusable gas sensors: first-principles calculations

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