scholarly journals Electrically driven strain-induced deterministic single-photon emitters in a van der Waals heterostructure

2021 ◽  
Vol 7 (43) ◽  
Author(s):  
Jae-Pil So ◽  
Ha-Reem Kim ◽  
Hyeonjun Baek ◽  
Kwang-Yong Jeong ◽  
Hoo-Cheol Lee ◽  
...  
Keyword(s):  
Single Photon ◽  
Van Der Waals ◽  
Van Der Waals Heterostructure ◽  
Single Photon Emitters

scholarly journals Moiré excitons in defective van der Waals heterostructures

2021 ◽  
Vol 118 (32) ◽  
pp. e2105468118
Author(s):  
Hongli Guo ◽  
Xu Zhang ◽  
Gang Lu
Keyword(s):  
Electric Fields ◽  
Single Photon ◽  
Van Der Waals ◽  
Energy Charge ◽  
Defect Engineering ◽  
One Dimensional ◽  
Competition And Cooperation ◽  
Ordered Arrays ◽  
Promising Strategy ◽  
Single Photon Emitters

Excitons can be trapped by moiré potentials in van der Waals (vdW) heterostructures, forming ordered arrays of quantum dots. Excitons can also be trapped by defect potentials as single photon emitters. While the moiré and defect potentials in vdW heterostructures have been studied separately, their interplay remains largely unexplored. Here, we perform first-principles calculations to elucidate the interplay of the two potentials in determining the optoelectronic properties of twisted MoS2/WS2 heterobilayers. The binding energy, charge density, localization, and hybridization of the moiré excitons can be modulated by the competition and cooperation of the two potentials. Their interplay can also be tuned by vertical electric fields, which can either de-trap the excitons or strongly localize them. One can further tailor the interplay of the two potentials via defect engineering to create one-dimensional exciton lattices with tunable orientations. Our work establishes defect engineering as a promising strategy to realize on-demand optoelectronic responses.

Interfacing single-photon emitters in atomically thin van der Waals crystals with photonic metasurfaces (Conference Presentation)

2019 ◽  
Author(s):  
Pankaj K. Jha ◽  
Ghazaleh K. Shirmanesh ◽  
Anna Mitskovets ◽  
Arun Nagpal ◽  
Hamidreza Akbari ◽  
...  
Keyword(s):  
Single Photon ◽  
Van Der Waals ◽  
Single Photon Emitters

Single-photon emitters in van der Waals materials

2019 ◽  
Vol 17 (2) ◽  
pp. 020011 ◽  
Author(s):  
Jiandong Qiao Jiandong Qiao ◽  
Fuhong Mei Fuhong Mei ◽  
Yu Ye Yu Ye
Keyword(s):  
Single Photon ◽  
Van Der Waals ◽  
Single Photon Emitters ◽  
Van Der Waals Materials

scholarly journals First-Principles Identification of Single Photon Emitters Based on Carbon Clusters in Hexagonal Boron Nitride

2021 ◽  
Vol 125 (6) ◽  
pp. 1325-1335 ◽  
Author(s):  
Cesar Jara ◽  
Tomáš Rauch ◽  
Silvana Botti ◽  
Miguel A. L. Marques ◽  
Ariel Norambuena ◽  
...  
Keyword(s):  
Boron Nitride ◽  
First Principles ◽  
Single Photon ◽  
Hexagonal Boron Nitride ◽  
Carbon Clusters ◽  
Single Photon Emitters

Misfit layer SnTiS3: An assemble-free van der Waals heterostructure SnS/TiS2 for lithium ion battery anode

2021 ◽  
Vol 494 ◽  
pp. 229712
Author(s):  
Yue-E Huang ◽  
Weilin Lin ◽  
Chenguang Shi ◽  
Li Li ◽  
Kaiqing Fan ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Van Der Waals ◽  
Lithium Ion ◽  
Van Der Waals Heterostructure ◽  
Battery Anode

A first-principles study on the electronic and optical properties of a type-II C2N/g-ZnO van der Waals heterostructure

2021 ◽  
Vol 23 (6) ◽  
pp. 3963-3973
Author(s):  
Jianxun Song ◽  
Hua Zheng ◽  
Minxia Liu ◽  
Geng Zhang ◽  
Dongxiong Ling ◽  
...  
Keyword(s):  
Optical Properties ◽  
Dft Calculations ◽  
First Principles ◽  
Van Der Waals ◽  
Band Alignment ◽  
Type Ii ◽  
Electronic And Optical Properties ◽  
Direct Bandgap ◽  
Van Der Waals Heterostructure ◽  
Vdw Heterostructure

The structural, electronic and optical properties of a new vdW heterostructure, C2N/g-ZnO, with an intrinsic type-II band alignment and a direct bandgap of 0.89 eV at the Γ point are extensively studied by DFT calculations.

Experimental Optical Properties of Single-Photon Emitters in Aluminum Nitride Films

2021 ◽  
Author(s):  
Yongzhou Xue ◽  
Tongbo Wei ◽  
Hongliang Chang ◽  
Dongdong Liang ◽  
Xiuming Dou ◽  
...  
Keyword(s):  
Optical Properties ◽  
Aluminum Nitride ◽  
Single Photon ◽  
Single Photon Emitters

Realizing efficient CO2 photoreduction in Bi3O4Cl: Constructing van der Waals heterostructure with g-C3N4

2021 ◽  
Vol 409 ◽  
pp. 128178
Author(s):  
Yixue Xu ◽  
Xiaoli Jin ◽  
Teng Ge ◽  
Haiquan Xie ◽  
Ruixue Sun ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Co2 Photoreduction ◽  
Van Der Waals Heterostructure
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