Laser-assisted two dimensional material electronic and optoelectronic devices

2021 ◽  
Author(s):  
Bao-Wang Su ◽  
Xi-Lin Zhang ◽  
Wei Xin ◽  
Hao-Wei Guo ◽  
Yu-Zhe Zhang ◽  
...  
Keyword(s):  
Laser Processing ◽  
High Performance ◽  
Optoelectronic Devices ◽  
Two Dimensional ◽  
2D Material ◽  
Processing Techniques

Laser processing techniques have been utilized to achieve high-performance 2D material electronic and optoelectronic devices. Herein, various 2D material electronic and optoelectronic devices fabricated via laser processing are reviewed.

scholarly journals Laser Processing Optimization for Large-Area Perovskite Solar Modules

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1069
Author(s):  
Stefano Razza ◽  
Sara Pescetelli ◽  
Antonio Agresti ◽  
Aldo Di Carlo
Keyword(s):  
Laser Processing ◽  
High Performance ◽  
Large Area ◽  
Solar Module ◽  
2D Material ◽  
High Performing ◽  
In Series ◽  
Processing Optimization ◽  
Module Performance ◽  
The Impact

The industrial exploitation of perovskite solar cell technology is still hampered by the lack of repeatable and high-throughput fabrication processes for large-area modules. The joint efforts of the scientific community allowed to demonstrate high-performing small area solar cells; however, retaining such results over large area modules is not trivial. Indeed, the development of deposition methods over large substrates is required together with additional laser processes for the realization of the monolithically integrated cells and their interconnections. In this work, we develop an efficient perovskite solar module based on 2D material engineered structure by optimizing the laser ablation steps (namely P1, P2, P3) required for shaping the module layout in series connected sub-cells. We investigate the impact of the P2 and P3 laser processes, carried out by employing a UV pulsed laser (pulse width = 10 ns; λ = 355 nm), over the final module performance. In particular, a P2 process for removing 2D material-based cell stack from interconnection area among adjacent cells is optimized. Moreover, the impact of the P3 process used to isolate adjacent sub-cells after gold realization over the module performance once laminated in panel configuration is elucidated. The developed fabrication process ensures high-performance repeatability over a large module number by demonstrating the use of laser processing in industrial production.

High performance tin diselenide photodetectors dependent on thickness: a vertical graphene sandwiched device and interfacial mechanism

Nanoscale ◽  
2019 ◽  
Vol 11 (28) ◽  
pp. 13309-13317 ◽  
Author(s):  
Wei Gao ◽  
Zhaoqiang Zheng ◽  
Yongtao Li ◽  
Yu Zhao ◽  
Liang Xu ◽  
...  
Keyword(s):  
High Performance ◽  
Rapid Development ◽  
Optoelectronic Devices ◽  
Layered Materials ◽  
Two Dimensional

In recent years, with the rapid development of transfer technologies related to graphene and other two-dimensional layered materials (2DLMs), graphene sandwiched 2DLMs have been confirmed to be outstanding tunneling and optoelectronic devices.

A Double Support Layer for Facile Clean Transfer of Two-Dimensional Materials for High-Performance Electronic and Optoelectronic Devices

ACS Nano ◽  
2019 ◽  
Vol 13 (5) ◽  
pp. 5513-5522 ◽  
Author(s):  
Dingdong Zhang ◽  
Jinhong Du ◽  
Yi-Lun Hong ◽  
Weimin Zhang ◽  
Xiao Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Optoelectronic Devices ◽  
Two Dimensional ◽  
Double Support ◽  
Two Dimensional Materials

scholarly journals Two-Dimensional Material-Based Colorimetric Biosensors: A Review

Biosensors ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 259
Author(s):  
Danzhu Zhu ◽  
Bin Liu ◽  
Gang Wei
Keyword(s):  
Transition Metal ◽  
High Performance ◽  
Material Selection ◽  
2D Materials ◽  
Low Cost ◽  
Transition Metal Dichalcogenide ◽  
Two Dimensional ◽  
Metallic Ions ◽  
Colorimetric Sensing ◽  
2D Material

Two-dimensional (2D) materials such as graphene, graphene oxide, transition metal oxide, MXene and others have shown high potential for the design and fabrication of various sensors and biosensors due to their 2D layered structure and unique properties. Compared to traditional fluorescent, electrochemical, and electrical biosensors, colorimetric biosensors exhibit several advantages including naked-eye determination, low cost, quick response, and easy fabrication. In this review, we present recent advances in the design, fabrication, and applications of 2D material-based high-performance colorimetric biosensors. Potential colorimetric sensing mechanisms and optimal material selection as well as sensor fabrication are introduced in brief. In addition, colorimetric biosensors based on different 2D materials such as graphene, transition metal dichalcogenide/oxide, MXenes, metal–organic frameworks, and metal nanoplates for the sensitive detection of DNA, proteins, viruses, small molecules, metallic ions, and others are presented and discussed in detail. This work will be helpful for readers to understand the knowledge of 2D material modification, nanozymes, and the synthesis of hybrid materials; meanwhile, it could be valuable to promote the design, fabrication, and applications of 2D material-based sensors and biosensors in quick bioanalysis and disease diagnostics.

Specific Labeling of Protein Domains with Antibody Fragments

1981 ◽  
Vol 39 ◽  
pp. 416-417
Author(s):  
U. Aebi ◽  
L.E. Buhle ◽  
W.E. Fowler
Keyword(s):  
Image Processing ◽  
Specific Protein ◽  
Antibody Fragments ◽  
Supramolecular Organization ◽  
Two Dimensional ◽  
Ordered Structures ◽  
Virus Capsids ◽  
Processing Techniques

Many important supramolecular structures such as filaments, microtubules, virus capsids and certain membrane proteins and bacterial cell walls exist as ordered polymers or two-dimensional crystalline arrays in vivo. In several instances it has been possible to induce soluble proteins to form ordered polymers or two-dimensional crystalline arrays in vitro. In both cases a combination of electron microscopy of negatively stained specimens with analog or digital image processing techniques has proven extremely useful for elucidating the molecular and supramolecular organization of the constituent proteins. However from the reconstructed stain exclusion patterns it is often difficult to identify distinct stain excluding regions with specific protein subunits. To this end it has been demonstrated that in some cases this ambiguity can be resolved by a combination of stoichiometric labeling of the ordered structures with subunit-specific antibody fragments (e.g. Fab) and image processing of the electron micrographs recorded from labeled and unlabeled structures.

Co-planar two-dimensional Metal-Insulator-Semiconductor Capacitor: Numerical study of the device electrostatics.

2017 ◽  
Author(s):  
Varun Bheemireddy
Keyword(s):  
Space Charge ◽  
High Performance ◽  
Numerical Study ◽  
2D Materials ◽  
Space Charge Density ◽  
Two Dimensional ◽  
Short Channel ◽  
Metal Insulator ◽  
Metal Insulator Semiconductor ◽  
New Family

The two-dimensional(2D) materials are highly promising candidates to realise elegant and e cient transistor. In the present letter, we conjecture a novel co-planar metal-insulator-semiconductor(MIS) device(capacitor) completely based on lateral 2D materials architecture and perform numerical study of the capacitor with a particular emphasis on its di erences with the conventional 3D MIS electrostatics. The space-charge density features a long charge-tail extending into the bulk of the semiconductor as opposed to the rapid decay in 3D capacitor. Equivalently, total space-charge and semiconductor capacitance densities are atleast an order of magnitude more in 2D semiconductor. In contrast to the bulk capacitor, expansion of maximum depletion width in 2D semiconductor is observed with increasing doping concentration due to lower electrostatic screening. The heuristic approach of performance analysis(2D vs 3D) for digital-logic transistor suggest higher ON-OFF current ratio in the long-channel limit even without third dimension and considerable room to maximise the performance of short-channel transistor. The present results could potentially trigger the exploration of new family of co-planar at transistors that could play a signi significant role in the future low-power and/or high performance electronics.<br>

High Performance Optoelectronic Devices Based on Bright Perovskite Nanocrystals Synthesized at Room Temperature

2018 ◽  
Author(s):  
Sotirios Christodoulou ◽  
Francesco Di Stasio ◽  
Santanu Pradhan ◽  
Inigo Ramiro ◽  
Yu Bi ◽  
...  
Keyword(s):  
High Performance ◽  
Room Temperature ◽  
Optoelectronic Devices ◽  
Perovskite Nanocrystals
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