Ultraflat Sub-10 Nanometer Gap Electrodes for Two-Dimensional Optoelectronic Devices

ACS Nano ◽  
2021 ◽  
Author(s):  
Seon Namgung ◽  
Steven J. Koester ◽  
Sang-Hyun Oh
Keyword(s):  
Optoelectronic Devices ◽  
Two Dimensional

scholarly journals Novel Two-Dimensional Layered MoSi2Z4 (Z = P, As): New Promising Optoelectronic Materials

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 559
Author(s):  
Hui Yao ◽  
Chao Zhang ◽  
Qiang Wang ◽  
Jianwei Li ◽  
Yunjin Yu ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Incident Light ◽  
Optoelectronic Devices ◽  
Large Family ◽  
Middle Layer ◽  
Optoelectronic Device ◽  
First Principles Calculation ◽  
Polarization Angle ◽  
Two Dimensional ◽  
Conducting Materials

Very recently, two new two-dimensional (2D) layered semi-conducting materials MoSi2N4 and WSi2N4 were successfully synthesized in experiments, and a large family of these two 2D materials, namely MA2Z4, was also predicted theoretically (Science, 369, 670 (2020)). Motivated by this exciting family, in this work, we systematically investigate the mechanical, electronic and optical properties of monolayer and bilayer MoSi2P4 and MoSi2As4 by using the first-principles calculation method. Numerical results indicate that both monolayer and bilayer MoSi2Z4 (Z = P, As) present good structural stability, isotropic mechanical parameters, moderate bandgap, favorable carrier mobilities, remarkable optical absorption, superior photon responsivity and external quantum efficiency. Especially, due to the wave-functions of band edges dominated by d orbital of the middle-layer Mo atoms are screened effectively, the bandgap and optical absorption hardly depend on the number of layers, providing an added convenience in the experimental fabrication of few-layer MoSi2Z4-based electronic and optoelectronic devices. We also build a monolayer MoSi2Z4-based 2D optoelectronic device, and quantitatively evaluate the photocurrent as a function of energy and polarization angle of the incident light. Our investigation verifies the excellent performance of a few-layer MoSi2Z4 and expands their potential application in nanoscale electronic and optoelectronic devices.

Optoelectronic devices based on two-dimensional transition metal dichalcogenides

Nano Research ◽  
2016 ◽  
Vol 9 (6) ◽  
pp. 1543-1560 ◽  
Author(s):  
He Tian ◽  
Matthew L. Chin ◽  
Sina Najmaei ◽  
Qiushi Guo ◽  
Fengnian Xia ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Optoelectronic Devices ◽  
Two Dimensional ◽  
Metal Dichalcogenides

scholarly journals Dielectrophoretic assembly of liquid-phase-exfoliated TiS3 nanoribbons for photodetecting applications

2017 ◽  
Vol 53 (45) ◽  
pp. 6164-6167 ◽  
Author(s):  
R. Frisenda ◽  
E. Giovanelli ◽  
P. Mishra ◽  
P. Gant ◽  
E. Flores ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Optoelectronic Devices ◽  
Two Dimensional ◽  
Two Dimensional Materials ◽  
Liquid Phase Exfoliation

Liquid-phase exfoliation produces colloidal two-dimensional materials that can be assembled by dielectrophoresis to fabricate optoelectronic devices.

Molecular design and crystallization process control for thin sheet-shaped organic semiconductor crystals with two-dimensional packing

2021 ◽  
Author(s):  
Yuejuan Wan ◽  
Zejian Zhang ◽  
Haichao Liu ◽  
Jiadong Zhou ◽  
Liqun Liu ◽  
...  
Keyword(s):  
Organic Semiconductor ◽  
Essential Role ◽  
Crystallization Process ◽  
Molecular Design ◽  
Thin Sheet ◽  
Optoelectronic Devices ◽  
Two Dimensional ◽  
High Property ◽  
Practical Applications ◽  
Semiconductor Crystals

The sheet-liked organic semiconductor crystals with two-dimensional (2D) packed structures play an essential role in practical applications of high-property optoelectronic devices. Here, we reported a practical example in combination with...

Diverse electronic properties of 2D layered Se-containing materials composed of quasi-1D atomic chains

2020 ◽  
Vol 22 (4) ◽  
pp. 2122-2129 ◽  
Author(s):  
Yawen Li ◽  
Yuanhui Sun ◽  
Guangren Na ◽  
Wissam A. Saidi ◽  
Lijun Zhang
Keyword(s):  
Electronic Properties ◽  
Optoelectronic Devices ◽  
Layered Materials ◽  
Two Dimensional ◽  
Next Generation ◽  
Atomic Chains ◽  
Significant Attention

The two-dimensional (2D) atomically thin layered materials have attracted significant attention for constructing next-generation integrated electronic and optoelectronic devices.

scholarly journals Realizing Optoelectronic Devices from Crumpled Two-Dimensional Material Heterostructures

2020 ◽  
Vol 12 (43) ◽  
pp. 48910-48916 ◽  
Author(s):  
M. Abir Hossain ◽  
Jaehyung Yu ◽  
Arend M. van der Zande
Keyword(s):  
Optoelectronic Devices ◽  
Two Dimensional

scholarly journals Colloidal quantum wells for optoelectronic devices

2020 ◽  
Vol 8 (31) ◽  
pp. 10628-10640 ◽  
Author(s):  
Benjamin T. Diroll
Keyword(s):  
Quantum Wells ◽  
Optoelectronic Devices ◽  
Two Dimensional ◽  
Two Dimensional Materials ◽  
Solution Processable

Colloidal quantum wells, or nanoplatelets, are a promising class of solution-processable two-dimensional materials with properties well-suited for diverse optoelectronic devices.

scholarly journals Emerging Artificial Two-Dimensional van der Waals Heterostructures for Optoelectronics

2020 ◽  
Author(s):  
Hongcheng Ruan ◽  
Yu Huang ◽  
Yuqian Chen ◽  
Fuwei Zhuge
Keyword(s):  
Material Properties ◽  
2D Materials ◽  
Van Der Waals ◽  
Optoelectronic Devices ◽  
Vertical Direction ◽  
Two Dimensional ◽  
Device Application ◽  
Optical Memories ◽  
Optoelectronic Applications ◽  
Transfer Method

Two-dimensional (2D) materials are attracting explosive attention for their intriguing potential in versatile applications, covering optoelectronics, electronics, sensors, etc. An attractive merit of 2D materials is their viable van der Waals (VdW) stacking in artificial sequence, thus forming different atomic arrangements in vertical direction and enabling unprecedented tailoring of material properties and device application. In this chapter, we summarize the latest progress in assembling VdW heterostructures for optoelectronic applications by beginning with the basic pick-transfer method for assembling 2D materials and then discussing the different combination of 2D materials of semiconductor, conductor, and insulator properties for various optoelectronic devices, e.g., photodiode, phototransistors, optical memories, etc.

scholarly journals Study on photoelectric characteristics of monolayer WS2 films

RSC Advances ◽  
2019 ◽  
Vol 9 (64) ◽  
pp. 37195-37200 ◽  
Author(s):  
Lin Wang ◽  
Wenyan Wang ◽  
Quan Wang ◽  
Xiaochun Chi ◽  
Zhihui Kang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Optoelectronic Devices ◽  
Time Dependent ◽  
Two Dimensional ◽  
Photoelectric Characteristics ◽  
Metal Dichalcogenides

It is important to determine the time-dependent evolution of the excited monolayer WS2, which will provide a basis for the reasonable design of optoelectronic devices based on two-dimensional transition metal dichalcogenides.

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