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Study on Photoelectric Properties of Graphene/Molybdenum Disulfide Heterojunction [PDF]

open access: yesNanomaterials
The zero-bandgap of graphene means that it can achieve a full spectral range response for graphene-based photodetectors. But the zero bandgap of graphene also brings relatively large dark current. To improve this issue and achieve low-cost graphene-based
Hui Ren, Xing Wei, Jibin Fan
doaj   +2 more sources

Silicon heterojunction solar cells with up to 26.81% efficiency achieved by electrically optimized nanocrystalline-silicon hole contact layers

open access: yesNature Energy, 2023
Silicon heterojunction (SHJ) solar cells have reached high power conversion efficiency owing to their effective passivating contact structures. Improvements in the optoelectronic properties of these contacts can enable higher device efficiency, thus ...
Hao Lin   +15 more
semanticscholar   +1 more source

Fabrication and Characterization of Visible to Near-Infrared Photodetector Based on Multilayer Graphene/Mg2Si/Si Heterojunction

open access: yesNanomaterials, 2022
In this investigation, p–Mg2Si/n–Si heterojunction photodetector (PD) is fabricated by magnetron sputtering and low vacuum annealing in the absence of argon or nitrogen atmosphere.
Hong Yu   +4 more
doaj   +1 more source

Solution-processed Bi2S3/BiVO4/TiO2 ternary heterojunction photoanode with enhanced photoelectrochemical performance

open access: yesNanotechnology Reviews, 2023
TiO2 is an important component of photoelectric devices. How to broaden the light absorption of TiO2 and accelerate the separation of photo-generated electrons and holes is the focus of the current research.
Li Xinli   +8 more
doaj   +1 more source

Enhanced and synergistic catalytic activation by photoexcitation driven S−scheme heterojunction hydrogel interface electric field

open access: yesNature Communications, 2023
The regulation of heterogeneous material properties to enhance the peroxymonosulfate (PMS) activation to degrade emerging organic pollutants remains a challenge.
Aiwen Wang   +9 more
semanticscholar   +1 more source

Tunable band-structures of MSe2/C3N (M = Mo and W) van der Waals Heterojunctions

open access: yesMaterials Research Express, 2023
Van der Waals (vdW) heterojunctions constructed using two-dimensional (2D) materials have shown excellent properties for applications in various fields. In this study, the structural and electronic properties of 2D MoSe _2 /C _3 N and WSe _2 /C _3 N vdW ...
Zixiang Liu   +4 more
doaj   +1 more source

Ferroelectric-tuned van der Waals heterojunction with band alignment evolution

open access: yesNature Communications, 2021
Band alignment engineering is important to realize high performance and multifunctionality in a specific van der Waals heterojunction. Here, the authors observe band alignment transition of the heterojunction in a ferroelectric-tuned van der Waals ...
Yan Chen   +14 more
doaj   +1 more source

Enhanced photoluminescence of a CsPbBr3/Al2O3 film heterojunction enabled by coupling of gold nanoparticles

open access: yesMaterials Research Express, 2020
We studied an enhanced photoluminescence (PL) effect of CsPbBr _3 /Al _2 O _3 heterojunction by using gold nanoparticls (NPs). The CsPbBr _3 /Al _2 O _3 heterojunction and CsPbBr _3 /Au/Al _2 O _3 heterojunction were respectively prepared on porous Al _2
Zhongchen Bai   +3 more
doaj   +1 more source

Self-assembled Ag4V2O7/Ag3VO4 Z-scheme heterojunction by pH adjustment with efficient photocatalytic performance

open access: yesJournal of Advanced Ceramics, 2022
Semiconductor heterojunction plays a pivotal role in photocatalysis. However, the construction of a heterojunction with a fine microstructure usually requires complex synthetic procedures.
Yan Xing   +8 more
doaj   +1 more source

Tunable electronic structure in twisted WTe2/WSe2 heterojunction bilayer

open access: yesAIP Advances, 2022
Electronic structures of non-twisted and twisted WTe2/WSe2 heterojunction bilayers were investigated using first-principles calculations. Our results show that, for the twisted WTe2/WSe2 heterojunction bilayer, the bandgaps are all direct bandgaps, and ...
Zi-Si Chen   +5 more
doaj   +1 more source

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