hybrid nanostructures
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Nanomaterials ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 271
Author(s):  
Rehab Ramadan ◽  
Raúl J. Martín-Palma

Hybrid nanostructures have a great potential to improve the overall properties of photonic devices. In the present study, silver nanoparticles (AgNPs) were infiltrated into nanostructured porous silicon (PSi) layers, aiming at enhancing the optoelectronic performance of Si-based devices. More specifically, Schottky diodes with three different configurations were fabricated, using Al/Si/Au as the basic structure. This structure was modified by adding PSi and PSi + AgNPs layers. Their characteristic electrical parameters were accurately determined by fitting the current–voltage curves to the non-ideal diode equation. Furthermore, electrochemical impedance spectroscopy was used to determine the electrical parameters of the diodes in a wide frequency range by fitting the Nyquist plots to the appropriate equivalent circuit model. The experimental results show a remarkable enhancement in electrical conduction after the incorporation of metallic nanoparticles. Moreover, the spectral photoresponse was examined for various devices. An approximately 10-fold increment in photoresponse was observed after the addition of Ag nanoparticles to the porous structures.


Plasmonics ◽  
2022 ◽  
Author(s):  
Yuan Wan ◽  
Yuanxin Tan ◽  
Yang Yang ◽  
Haining Chong ◽  
Zhaozhong Meng ◽  
...  

2022 ◽  
Author(s):  
Ye Ming Qing ◽  
Yongze Ren ◽  
Dangyuan Lei ◽  
Hui Feng Ma ◽  
Tie Jun Cui

Abstract Strong interaction between electromagnetic radiation and matter leads to the formation of hybrid light-matter states, making the absorption and emission behavior different from those of the uncoupled states. Strong coupling effect results in the famous Rabi splitting and the emergence of new polaritonic eigenmodes, exhibiting spectral anticrossing behavior and unique energy-transfer properties. In recent years, there has been a rapidly increasing number of works focusing on strong coupling between nanostructures and two-dimensional materials (2DMs), because of the exceptional properties and applications they demonstrate. Here, we review the significant recent advances and important developments of strong light-matter interactions in 2DMs-based nanostructures. We adopt the coupled oscillator model to describe the strong coupling and give an overview of various hybrid nanostructures to realize this regime, including graphene-based nanostructures, black phosphorus-based nanostructures, transition-metal dichalcogenides-based nanostructures, etc. In addition, we discuss potential applications that can benefit from these effects and conclude our review with a perspective on the future of this rapidly emerging field.


Nanoscale ◽  
2022 ◽  
Author(s):  
Min Zhang ◽  
Aihui Cao ◽  
Heng Zhang ◽  
Yunlong Zhao ◽  
Xintai Su ◽  
...  

MOFs have been widely used as templates to design and construct catalysis materials, such as LDH, metal oxides, and carbon. Herein, we developed a Cu-mediated pyrolysis protocol for the synthesis...


2022 ◽  
Author(s):  
Ashish Gaur ◽  
Vikas Pundir ◽  
Krishankant . ◽  
Ritu Rai ◽  
Baljeet Kaur ◽  
...  

Electrocatalytic water splitting is one of the key technology for the future energy systems envisioned for the storage of energy obtained from variable renewables and green fuels. The development of...


Author(s):  
R. Rajakumari ◽  
Abhimanyu Tharayil ◽  
Sabu Thomas ◽  
Nandakumar Kalarikkal

2022 ◽  
Vol 15 (2) ◽  
Author(s):  
Naresh A. Rajpurohit ◽  
Kaushalya Bhakar ◽  
Meena Nemiwal ◽  
Dinesh Kumar

2022 ◽  
Author(s):  
Jogendra Nath Behera ◽  
Rajat Kumar Tripathy ◽  
Aneeya K Samantara ◽  
Pratap Mane ◽  
Brahmananda Chakraborty

Generation of molecular hydrogen by electrochemical water splitting is a promising approach and its efficiency strictly adhere on the electrocatalyst used. Therefore, it’s an ongoing challenge to design materials having...


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