scholarly journals Self-assembled plasmonic nanostructures

2014 ◽  
Vol 43 (11) ◽  
pp. 3976 ◽  
Author(s):  
Anna Klinkova ◽  
Rachelle M. Choueiri ◽  
Eugenia Kumacheva
ACS Nano ◽  
2021 ◽  
Vol 15 (3) ◽  
pp. 5715-5724
Author(s):  
Mei Song ◽  
Lianming Tong ◽  
Shengli Liu ◽  
Yaowen Zhang ◽  
Junyu Dong ◽  
...  

2013 ◽  
Vol 5 (1) ◽  
pp. 25-29 ◽  
Author(s):  
Anri Watanabe ◽  
Yuki Kotake ◽  
Yoshiomi Kamata ◽  
Akira Chikamatsu ◽  
Kosei Ueno ◽  
...  

2021 ◽  
Vol 22 (19) ◽  
pp. 10595
Author(s):  
Vasanthan Devaraj ◽  
Jong-Min Lee ◽  
Ye-Ji Kim ◽  
Hyuk Jeong ◽  
Jin-Woo Oh

We reveal the significance of plasmonic nanoparticle’s (NP) shape and its surface morphology en route to an efficient self-assembled plasmonic nanoparticle cluster. A simplified model is simulated in the form of free-space dimer and trimer nanostructures (NPs in the shape of a sphere, cube, and disk). A ~200% to ~125% rise in near-field strength (gap mode enhancement) is observed for spherical NPs in comparison with cubical NPs (from 2 nm to 8 nm gap sizes). Full-width three-quarter maximum reveals better broad-spectral optical performance in a range of ~100 nm (dimer) and ~170 nm (trimer) from spherical NPs as compared to a cube (~60 nm for dimer and trimer). These excellent properties for sphere-based nanostructures are merited from its dipole mode characteristics.


2020 ◽  
Author(s):  
Dan Su ◽  
Xiao-Yang Zhang ◽  
Lei Lv ◽  
Huan-Li Zhou ◽  
Shan-Jiang Wang ◽  
...  

Abstract Nanophotonics pours into new opportunities to achieve ultrahigh-efficiency solar cells, attracting tremendous interests from photovoltaic research and industry. Plasmonic nanostructures, enabling strong light-matter interaction at the nanoscale, have been widely used for efficiency enhancement in thin-film solar cell devices based on plasmonic near-field effects. Unlike thin-film device cases, we found forward scattering and inter-particle coupling engineering of subwavelength plasmonic nanostructures are the key to enhance the efficiency of bulk multijunction solar cells (MJSCs). As a proof of concept, we studied the plasmonic enhancement of Ag@SiO2 nanocoating self-assembled on InGaP/GaInAs/Ge MJSCs at both macro and micro scales. From the macro measurements, the experimental enhancement of Ag@SiO2 core-shell nanostructure could be well-matched with the simulational results, where strong forward scattering and suppressed interparticle coupling could be simultaneously achieved by employing ~ 22 nm SiO2 shell layer. Using a double excitation method under an infinity optical microscope, we directly observed multi-wavelength uniform photocurrent enhancements on MJSCs at a submicrometer scale. This study will provide an effective strategy and opening up new opportunities to explore high-efficient MJSCs using nanophotonics.


Nanophotonics ◽  
2013 ◽  
Vol 2 (3) ◽  
pp. 211-240 ◽  
Author(s):  
Stefan Mühlig ◽  
Alastair Cunningham ◽  
José Dintinger ◽  
Toralf Scharf ◽  
Thomas Bürgi ◽  
...  

AbstractNowadays for the sake of convenience most plasmonic nanostructures are fabricated by top-down nanofabrication technologies. This offers great degrees of freedom to tailor the geometry with unprecedented precision. However, it often causes disadvantages as well. The structures available are usually planar and periodically arranged. Therefore, bulk plasmonic structures are difficult to fabricate and the periodic arrangement causes undesired effects, e.g., strong spatial dispersion is observed in metamaterials. These limitations can be mitigated by relying on bottom-up nanofabrication technologies. There, self-assembly methods and techniques from the field of colloidal nanochemistry are used to build complex functional unit cells in solution from an ensemble of simple building blocks, i.e., in most cases plasmonic nanoparticles. Achievable structures are characterized by a high degree of nominal order only on a short-range scale. The precise spatial arrangement across larger dimensions is not possible in most cases; leading essentially to amorphous structures. Such self-assembled nanostructures require novel analytical means to describe their properties, innovative designs of functional elements that possess a desired near- and far-field response, and entail genuine nanofabrication and characterization techniques. Eventually, novel applications have to be perceived that are adapted to the specifics of the self-assembled nanostructures. This review shall document recent progress in this field of research. Emphasis is put on bottom-up amorphous metamaterials. We document the state-of-the-art but also critically assess the problems that have to be overcome.


ChemInform ◽  
2014 ◽  
Vol 45 (29) ◽  
pp. no-no
Author(s):  
Anna Klinkova ◽  
Rachelle M. Choueiri ◽  
Eugenia Kumacheva

Author(s):  
Vasanthan Devaraj ◽  
Jong-Min Lee ◽  
Ye-ji Kim ◽  
Hyuk Jeong ◽  
Jin-Woo Oh

We reveal the significance of plasmonic nanoparticle’s (NP) shape and its surface morphology en route to an efficient self-assembled plasmonic nanoparticle cluster. A simplified model is simulated in the form of free-space dimer and trimer nanostructures (NPs in shape of sphere, cube, and disk). A ~ 200 % to ~ 125% raise in near field strength (gap mode enhancement) is observed for spherical NPs in comparison with cubical NPs (from 2 nm to 8 nm gap sizes). Full-width three-quarter maximum reveals better broad-spectral optical performance in a range of ~ 100 nm (dimer) and ~ 170 nm (trimer) from spherical NPs as compared to a cube (~ 60 nm for dimer and trimer). These excellent properties for sphere-based nanostructures are merited from its dipole mode characteristics.


2015 ◽  
Vol 17 (11) ◽  
Author(s):  
Polina V. Gladskikh ◽  
Igor A. Gladskikh ◽  
Nikita A. Toropov ◽  
Mikhail A. Baranov ◽  
Tigran A. Vartanyan

2016 ◽  
Vol 120 (48) ◽  
pp. 27555-27561 ◽  
Author(s):  
Kai Liu ◽  
Xiaozheng Xue ◽  
Viktor Sukhotskiy ◽  
Edward P. Furlani

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