Single-layer ZnMN2 (M = Si, Ge, Sn) zinc nitrides as promising photocatalysts

2018 ◽  
Vol 20 (21) ◽  
pp. 14619-14626 ◽  
Author(s):  
Yujie Bai ◽  
Gaixia Luo ◽  
Lijuan Meng ◽  
Qinfang Zhang ◽  
Ning Xu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Single Layer ◽  
Band Edge ◽  
Redox Potentials ◽  
Biaxial Strain

The catalytic activity of single-layer ZnGeN2 is better and the band edge positions can be effectively tuned to match better with the redox potentials of water by biaxial strain.

Controllable Fabrication and Photocatalytic Performance of Nanoscale Single-layer MoSe2 with Substantial Edges on Ag(111)

Nanoscale ◽  
2021 ◽  
Author(s):  
Jianchen Lu ◽  
Gefei Niu ◽  
Xiao Ren ◽  
De-Liang Bao ◽  
Hui Chen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Transition Metal ◽  
Photocatalytic Performance ◽  
Transition Metal Dichalcogenides ◽  
Single Layer ◽  
Two Dimensional ◽  
Metal Dichalcogenides ◽  
Controllable Fabrication

Two-dimensional (2D) transition metal dichalcogenides (TMDs) are emerging as new electrocatalysts and photocatalysts, in which edge sites of 2D TMDs are highly catalytic activity and are thus favored at the...

Compact, flexible and highly selective wideband complementary FSS with high angular stability

2021 ◽  
pp. 1-17
Author(s):  
Srimita Coomar ◽  
Santanu Mondal ◽  
Rajarshi Sanyal
Keyword(s):  
Dielectric Material ◽  
Incident Angle ◽  
Single Layer ◽  
Angular Stability ◽  
Band Edge ◽  
Transmission Line Model ◽  
Layer Structures ◽  
Sharp Band ◽  
Lc Circuit ◽  
Very High

Abstract This article presents a novel miniaturized (0.105λ0 × 0.105λ0) flexible complementary frequency selective surfaces (CFSS) structure with sharp band edge selectivity and very high angular stability. To explore two diverse applications as a passband and stopband filter, a novel complementary convoluted square loop (CCSL) type structure has been designed and investigated on ultrathin dielectric material of thickness 0.0023λ0. The second-order wide controllable passband with fractional bandwidth of 19.23% (−3 dB) and remarkably wide stopband of 64.7% (−10 dB) and 54.8% (−20 dB) respectively have been achieved by using a cascaded resonating structure which is composed of asymmetrical meandered CCSL array, arranged on two ultrathin dielectric layers with air foam separation. This particular format would lead to sharp band edge selectivity with steep roll-off (72.43 dB/GHz) and an excellent passband selectivity factor (0.731). An equivalent lumped LC circuit in conjunction with the transmission line model has also been adopted to comprehend the physical mechanism of the proposed single layer and double layer structures. Further, better passband and stopband angular stability at an oblique incident angle of 45° and the bending characteristics have also been investigated thoroughly for the proposed flexible CFSS to check their employability in different conformal structures with WiMAX passband and WLAN stopband application.

Synergistic effect of band edge potentials on BiFeO3/V2O5 composite: Enhanced photo catalytic activity

2019 ◽  
Vol 247 ◽  
pp. 104-114 ◽  
Author(s):  
Venkatesan Jayaraman ◽  
Debabrata Sarkar ◽  
Ranjith Rajendran ◽  
Baskaran Palanivel ◽  
Chinnadurai Ayappan ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Synergistic Effect ◽  
Band Edge ◽  
Photo Catalytic Activity

Band edge tuned ZnxCd1−xS solid solution nanopowders for efficient solar photocatalysis

2017 ◽  
Vol 19 (44) ◽  
pp. 29998-30009 ◽  
Author(s):  
Shrabani Ghosh ◽  
Samrat Sarkar ◽  
Bikram Kumar Das ◽  
Dipayan Sen ◽  
Madhupriya Samanta ◽  
...  
Keyword(s):  
Solid Solution ◽  
Catalytic Activity ◽  
Band Edge ◽  
Solar Photocatalysis ◽  
Natural Sunlight ◽  
Zinc Blende

Natural sunlight assisted catalytic activity of hydrothermally synthesized zinc blende ZnxCd1−xS solid solution with theoretical insights.

scholarly journals Biaxial strain tuning of the optical properties of single-layer transition metal dichalcogenides

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Riccardo Frisenda ◽  
Matthias Drüppel ◽  
Robert Schmidt ◽  
Steffen Michaelis de Vasconcellos ◽  
David Perez de Lara ◽  
...  
Keyword(s):  
Optical Properties ◽  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Single Layer ◽  
Biaxial Strain ◽  
Layer Transition ◽  
Metal Dichalcogenides

GaS0.5Te0.5 monolayer as an efficient water splitting photocatalyst

2017 ◽  
Vol 19 (23) ◽  
pp. 15394-15402 ◽  
Author(s):  
Yujie Bai ◽  
Qinfang Zhang ◽  
Gaixia Luo ◽  
Yali Bu ◽  
Lei Zhu ◽  
...  
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Water Splitting ◽  
Band Edge ◽  
Redox Potentials ◽  
Promising Candidate ◽  
Light Water ◽  
Direct Band Gap ◽  
Direct Band

GaS0.5Te0.5 monolayer is a promising candidate as a visible-light water splitting photocatalyst, which is a direct band gap (2.09 eV) semiconductor, and has an appropriate band edge alignment with respect to the water redox potentials in both acidic and neutral environments.

Insight into the band structure engineering of single-layer SnS2 with in-plane biaxial strain

2016 ◽  
Vol 18 (11) ◽  
pp. 7860-7865 ◽  
Author(s):  
Wei Zhou ◽  
Naoto Umezawa
Keyword(s):  
Electronic Structure ◽  
Band Structure ◽  
Density Functional Calculations ◽  
Density Functional ◽  
Single Layer ◽  
Biaxial Strain ◽  
Structure Engineering ◽  
Hybrid Density Functional ◽  
Insight Into

The effects of in-plane biaxial strain on the electronic structure of a photofunctional material, single-layer SnS2, were systematically investigated using hybrid density functional calculations.

Modulation of band alignment with water redox potentials by biaxial strain on orthorhombic NaTaO3 thin films

2020 ◽  
Vol 22 (41) ◽  
pp. 23810-23815
Author(s):  
Alexandre Olivieri Kraus ◽  
Guilherme Ribeiro Portugal ◽  
Jeverson Teodoro Arantes
Keyword(s):  
Thin Films ◽  
Water Splitting ◽  
Band Alignment ◽  
Semiconductor Materials ◽  
Redox Potentials ◽  
Biaxial Strain

Photocatalysis-assisted water splitting using semiconductor materials greatly depends on the bandgap size and the alignment of band edges relative to the reaction potentials.

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