Blue phosphorene/Sc2CX2 (X = O, F) van der Waals heterostructures as suitable candidates for water-splitting photocatalysts and solar cells

2020 ◽  
Vol 4 (10) ◽  
pp. 5277-5283
Author(s):  
Xiao-Hua Li ◽  
Bao-Ji Wang ◽  
Guo-Dong Wang ◽  
San-Huang Ke
Keyword(s):  
Solar Cells ◽  
Solar Energy ◽  
Dft Calculations ◽  
Water Splitting ◽  
Van Der Waals ◽  
Van Der Waals Heterostructures ◽  
Energy Applications ◽  
Blue Phosphorene

Using DFT calculations, BlueP/Sc2CX2 (X = O, F) heterostructures are found to have great potential in the field of solar energy applications.

2D van der Waals heterostructures of graphitic BCN as direct Z-scheme photocatalysts for overall water splitting: the role of polar π-conjugated moieties

2020 ◽  
Vol 22 (41) ◽  
pp. 23735-23742
Author(s):  
Zhijie Wang ◽  
Zhibo Luo ◽  
Jia Li ◽  
Kang Yang ◽  
Gang Zhou
Keyword(s):  
Water Splitting ◽  
Van Der Waals ◽  
Van Der Waals Heterostructures ◽  
Overall Water Splitting ◽  
Π Stacking

A principle diagram of BC3/C3N and BC3/BC6N heterostructures immobilized by π–π stacking as direct Z-scheme photocatalysts for water splitting.

scholarly journals PN/PAs-WSe2 van der Waals heterostructures for solar cell and photodetector

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Xinyi Zheng ◽  
Yadong Wei ◽  
Kaijuan Pang ◽  
Ngeywo Kaner Tolbert ◽  
Dalin Kong ◽  
...  
Keyword(s):  
Refractive Index ◽  
Solar Cells ◽  
Negative Refractive Index ◽  
Wide Spectrum ◽  
Van Der Waals ◽  
Band Alignment ◽  
Ultraviolet Region ◽  
Type I ◽  
Type Ii ◽  
Van Der Waals Heterostructures

Abstract By first-principles calculations, we investigate the geometric stability, electronic and optical properties of the type-II PN-WSe2 and type-I PAs-WSe2 van der Waals heterostructures(vdWH). They are p-type semiconductors with indirect band gaps of 1.09 eV and 1.08 eV based on PBE functional respectively. By applying the external gate field, the PAs-WSe2 heterostructure would transform to the type-II band alignment from the type-I. With the increasing of magnitude of the electric field, two heterostructures turn into the n-type semiconductors and eventually into metal. Especially, PN/PAs-WSe2 vdWH are both high refractive index materials at low frequencies and show negative refractive index at high frequencies. Because of the steady absorption in ultraviolet region, the PAs-WSe2 heterostructure is a highly sensitive UV detector material with wide spectrum. The type-II PN-WSe2 heterostructure possesses giant and broadband absorption in the near-infrared and visible regions, and its solar power conversion efficiency of 13.8% is higher than the reported GaTe–InSe (9.1%), MoS2/p-Si (5.23%) and organic solar cells (11.7%). It does project PN-WSe2 heterostructure a potential for application in excitons-based solar cells.

Two-dimensional layered Janus-In2SeTe/C2N van der Waals heterostructures for photocatalysis and photovoltaics: first-principles calculations

2020 ◽  
Vol 44 (37) ◽  
pp. 16092-16100
Author(s):  
Xiao-Hua Li ◽  
Bao-Ji Wang ◽  
Hui Li ◽  
Xue-Feng Yang ◽  
Rui-Qi Zhao ◽  
...  
Keyword(s):  
Dft Calculations ◽  
First Principles ◽  
Sustainable Energy ◽  
Van Der Waals ◽  
Two Dimensional ◽  
First Principles Calculations ◽  
Van Der Waals Heterostructures ◽  
Potential Applications

Through DFT calculations, Janus-In2SeTe/C2N heterostructures are found to have great potential applications in the fields of clean and sustainable energy.

Two-dimensional BP/β-AsP van der Waals heterostructures as promising photocatalyst for water splitting

2020 ◽  
Vol 117 (6) ◽  
pp. 063901 ◽  
Author(s):  
Yu-Liang Liu ◽  
Ying Shi ◽  
Hang Yin ◽  
Chuan-Lu Yang
Keyword(s):  
Water Splitting ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures

Ferroelectricity in 2D metal phosphorous trichalcogenides and van der Waals heterostructures for photocatalytic water splitting

2020 ◽  
Author(s):  
Sheng Huang ◽  
Zhigang Shuai ◽  
Dong Wang
Keyword(s):  
Water Splitting ◽  
Van Der Waals ◽  
Van Der Waals Heterostructures ◽  
Photocatalytic Water Splitting

Integration of ferroelectricity into van der Waals heterostructures offers additional opportunities to control over the properties and functionalities of heterostructures by switching the direction of the polarization via an external...

Janus XSSe/SiC (X = Mo, W) van der Waals heterostructures as promising water-splitting photocatalysts

2020 ◽  
Vol 123 ◽  
pp. 114207 ◽  
Author(s):  
Zhen Cui ◽  
Kaifei Bai ◽  
Yingchun Ding ◽  
Xia Wang ◽  
Enling Li ◽  
...  
Keyword(s):  
Water Splitting ◽  
Van Der Waals ◽  
Van Der Waals Heterostructures

High performance duckweed-derived carbon support to anchor NiFe electrocatalysts for efficient solar energy driven water splitting

2018 ◽  
Vol 6 (39) ◽  
pp. 18948-18959 ◽  
Author(s):  
Ashwani Kumar ◽  
Dhirendra K. Chaudhary ◽  
Sahanaz Parvin ◽  
Sayan Bhattacharyya
Keyword(s):  
Solar Cells ◽  
Solar Energy ◽  
Water Splitting ◽  
High Performance ◽  
Carbon Support

NiFe nanoparticle electrocatalysts, supported on duckweed-derived carbon, splits water at 1.61 V and provides a 9.7% solar-to-hydrogen efficiency when connected to solar cells.

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