scholarly journals Liquid phase exfoliation of MoS2 and WS2 in aqueous ammonia and their application in highly efficient organic solar cells

2020 ◽  
Vol 8 (15) ◽  
pp. 5259-5264 ◽  
Author(s):  
Begimai Adilbekova ◽  
Yuanbao Lin ◽  
Emre Yengel ◽  
Hendrik Faber ◽  
George Harrison ◽  
...  

Simple, scalable and cost-effective synthesis of quality two-dimensional (2D) transition metal dichalcogenides (TMDs) is critical for fundamental investigations but also for the widespread adoption of these low-dimensional materials in an expanding range of device applications.

2021 ◽  
Vol 15 (4) ◽  
Author(s):  
Anna N. Morozovska ◽  
Eugene A. Eliseev ◽  
Hanna V. Shevliakova ◽  
Yaroslava Yu. Lopatina ◽  
Galina I. Dovbeshko ◽  
...  

Micromachines ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 693
Author(s):  
Andrew Voshell ◽  
Mauricio Terrones ◽  
Mukti Rana

Two-dimensional (2D) materials have shown promise in various optical and electrical applications. Among these materials, semiconducting transition metal dichalcogenides (TMDs) have been heavily studied recently for their photodetection and thermoelectric properties. The recent progress in fabrication, defect engineering, doping, and heterostructure design has shown vast improvements in response time and sensitivity, which can be applied to both contact-based (thermocouple), and non-contact (photodetector) thermal sensing applications. These improvements have allowed the possibility of cost-effective and tunable thermal sensors for novel applications, such as broadband photodetectors, ultrafast detectors, and high thermoelectric figures of merit. In this review, we summarize the properties arisen in works that focus on the respective qualities of TMD-based photodetectors and thermocouples, with a focus on their optical, electrical, and thermoelectric capabilities for using them in sensing and detection.


RSC Advances ◽  
2017 ◽  
Vol 7 (20) ◽  
pp. 11987-11997 ◽  
Author(s):  
De-Sheng Liu ◽  
Jiang Wu ◽  
Yanan Wang ◽  
Haining Ji ◽  
Lei Gao ◽  
...  

Transition metal dichalcogenides (TMDs) with a unique sandwich structure have attracted tremendous attention in recent years due to their distinctive electrical and optical properties.


2018 ◽  
Vol 7 (5) ◽  
pp. 393-411 ◽  
Author(s):  
Zhenhui Li ◽  
Ke Xu ◽  
Fanan Wei

Abstract Photodetectors (PDs) have great potential in applications of imaging, telecommunication, and biological sensing. In this article, state-of-the-art achievements on typical low-dimensional nanostructured PDs and hybrid PDs are reviewed. In the 2D nanostructured PDs part, 2D transition metal dichalcogenides have a natural gap, which promise high sensitivity of photodetection. Graphene and black phosphorus can also stand for 2D nanostructured PDs due to their broadband absorption and tunable direct bandgap, respectively. In the 1D nanostructured PDs part, owing to its high photoconductive characteristic, ZnO nanowire film is a promising material for ultraviolet PDs. Carbon nanotubes show potential in infrared (IR) detection due to its unique physical properties. In the 0D nanostructured PDs part, lead sulfide has a small bandgap and large Bohr exciton radius, which collectively give it a wide spectral tunability in the IR. In the hybrid PDs part, electrical and chemical doping is applied to combine different nanomaterials to realize PDs with high performance. In each part, the present situation and major challenges are overviewed. Then, the evolutions of the methods to overcome these challenges and the tremendous research breakthroughs are demonstrated. At last, future directions that could improve the performance of PDs are discussed.


Nanomaterials ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 463 ◽  
Author(s):  
Lei Yang ◽  
Chenggen Xie ◽  
Juncheng Jin ◽  
Rai Ali ◽  
Chao Feng ◽  
...  

Nanophotonics ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 169-197 ◽  
Author(s):  
Chee Leong Tan ◽  
Hooman Mohseni

AbstractInfrared photodetectors (IRPDs) have become important devices in various applications such as night vision, military missile tracking, medical imaging, industry defect imaging, environmental sensing, and exoplanet exploration. Mature semiconductor technologies such as mercury cadmium telluride and III–V material-based photodetectors have been dominating the industry. However, in the last few decades, significant funding and research has been focused to improve the performance of IRPDs such as lowering the fabrication cost, simplifying the fabrication processes, increasing the production yield, and increasing the operating temperature by making use of advances in nanofabrication and nanotechnology. We will first review the nanomaterial with suitable electronic and mechanical properties, such as two-dimensional material, graphene, transition metal dichalcogenides, and metal oxides. We compare these with more traditional low-dimensional material such as quantum well, quantum dot, quantum dot in well, semiconductor superlattice, nanowires, nanotube, and colloid quantum dot. We will also review the nanostructures used for enhanced light-matter interaction to boost the IRPD sensitivity. These include nanostructured antireflection coatings, optical antennas, plasmonic, and metamaterials.


Nanoscale ◽  
2021 ◽  
Author(s):  
Anh Tuan Hoang ◽  
Kairui Qu ◽  
Xiang Chen ◽  
Jong-Hyun Ahn

This article reviews the latest advances in the synthesis of wafer-scale thin films using chemical vapor deposition and solution-based methods and various device applications.


Nanoscale ◽  
2020 ◽  
Vol 12 (34) ◽  
pp. 17746-17753
Author(s):  
Xiangjun Liu ◽  
Zhi Gen Yu ◽  
Gang Zhang ◽  
Yong-Wei Zhang

Two-dimensional (2D) transition-metal dichalcogenides (TMDs) hold great potential for many important device applications, such as field effect transistors and sensors, which require a robust control of defect type, density, and distribution.


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