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Related papers: Esaki diodes in van der Waals heterojunctions with…

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Van der Waals (vdW) heterostructures combining two-dimensional (2D) ferromagnets and semiconducting transition-metal dichalcogenides (TMDCs) offer highly promising opportunities for tailoring 2D magnetism through interfacial proximity…

A variety of fabrication methods for van der Waals heterostructures have been demonstrated; however, their wafer-scale deposition remains a challenge. Here we report few-layer van der Waals PtS2/PtSe2 heterojunction photodiodes fabricated…

Mesoscale and Nanoscale Physics · Physics 2018-08-07 Jian Yuan , Tian sun , Zhixin Hu , Wenzhi Yu , Weiliang Ma , Kai Zhang , Qiaoliang Bao , Shu Ping Lau , Shenghuang Lin , Shaojuan Li

Vertically stacked two-dimensional (2D) van der Waals (vdW) heterostructures based on graphene electrodes represent a promising architecture for next-generation electronic devices. However, their first-principles characterizations have been…

Mesoscale and Nanoscale Physics · Physics 2024-03-29 Tae Hyung Kim , Juho Lee , Ryong-Gyu Lee , Yong-Hoon Kim

We report a sequential two-step vapor deposition process for growing mixed-dimensional van der Waals (vdW) materials, specifically Te nanowires (1D) and MoS$_2$ (2D), on a single SiO$_2$ wafer. Our growth technique offers a unique potential…

Combining single-layer two-dimensional semiconducting transition metal dichalcogenides (TMDs) with graphene layer in van der Waals heterostructures offers an intriguing means of controlling the electronic properties through these…

Vertical stacking of atomically thin layered materials opens new possibilities for the fabrication of heterostructures with favorable optoelectronic properties. The combination of graphene, hexagonal boron nitride and semiconducting…

Multilayer van der Waals (vdWs) semiconductors have great promising application in high-performance optoelectronic devices. However, the photoconductive photodetectors based on layered semiconductors often suffer from large dark current and…

Applied Physics · Physics 2020-08-12 Fanglu Qin , Feng Gao , Mingjin Dai , Yunxia Hu , Miaomiao Yu , Lifeng Wang , PingAn Hu , Wei Feng

Two-dimensional (2D) material photodetectors have gained great attention as potential elements for optoelectronic applications. However, the linearity of the photoresponse is often compromised by the carrier interaction, even in 2D…

Mesoscale and Nanoscale Physics · Physics 2023-12-12 Jinpeng Xu , Xiaoguang Luo , Xi Lin , Xi Zhang , Fan Liu , Yuting Yan , Siqi Hu , Mingwen Zhang , Nannan Han , Xuetao Gan , Yingchun Cheng , Wei Huang

Searching for controllable topological phase by means of external stimuli in two-dimensional (2D) material-based van der Waals (vdW) heterostructures is currently an active field for both the underlying physics and practical applications.…

Materials Science · Physics 2024-06-14 D. Q. Fang , D. W. Wang

Semiconductor p-n junctions are essential building blocks for modern electronics and optoelectronics. In conventional semiconductors, a p-n junction produces depletion regions of free charge carriers at equilibrium and built-in potentials…

Two-dimensional materials (2D) arranged in hybrid van der Waals (vdW) heterostructures provide a route toward the assembly of 2D and conventional III-V semiconductors. Here, we report the structural and electronic properties of single layer…

Photonics has been revolutionized by breakthroughs in optical metasurfaces and layered two-dimensional materials. Yet, integrating these two fields in a singular system has remained challenging. Here, we introduce the concept of van der…

Van der Waals (vdW) heterostructures consisting of two dimensional materials offer a platform to obtain material by design and are very attractive owing to novel electronic states. Research on 2D van der Waals heterostructures (vdWH) has so…

Mesoscale and Nanoscale Physics · Physics 2017-05-11 Kyle Ray , Alexander E. Yore , Tong Mou , Sauraj Jha , K. K. H. Smithe , Bin Wang , Eric Pop , A. K. M. Newaz

Backward diodes conduct more efficiently in the reverse bias than in the forward bias, providing superior high frequency response, temperature stability, radiation hardness, and 1/f noise performance than a conventional diode conducting in…

Applied Physics · Physics 2018-02-15 Krishna Murali , Medha Dandu , Sarthak Das , Kausik Majumdar

One-dimensional (1D) van der Waals (vdW) materials offer nearly defect-free strands as channel material in the field-effect transistor (FET) devices and probably, a better interconnect than conventional copper with higher current density…

Mesoscale and Nanoscale Physics · Physics 2023-07-12 Bikash Das , Kapildeb Dolui , Rahul Paramanik , Tanima Kundu , Sujan Maity , Anudeepa Ghosh , Mainak Palit , Subhadeep Datta

Artificially engineered 2D materials offer unique physical properties for thermal management, surpassing naturally occurring materials. Here, using van der Waals epitaxy, we demonstrate the ability to engineer extremely insulating…

Van der Waals (vdW) heterostructures have opened new opportunities to develop atomically thin (opto)electronic devices with a wide range of functionalities. The recent focus on manipulating the interlayer twist angle has led to the…

The presence of finite bandgap and high mobility in semiconductor few-layer black phosphorus offers an attractive prospect for using this material in future two-dimensional electronic devices. Here we demonstrate for the first time fully…

The combination of two-dimensional (2D) materials into heterostructures enabled the formation of atomically thin devices with designed properties. To achieve a high density, bottom-up integration, the growth of these 2D heterostructures via…

Materials Science · Physics 2021-08-04 Martin Heilmann , Victor Deinhart , Abbes Tahraoui , Katja Höflich , J. Marcelo J. Lopes

Bandgap engineering and quantum confinement in semiconductor heterostructures provide the means to fine-tune material response to electromagnetic fields and light in a wide range of the spectrum. Nonetheless, forming semiconductor…