scholarly journals Optical properties of ultrathin metal oxide and metal films : effect of free electrons, quantum confinement and localized surface plasmon resonance

2016 ◽  
Author(s):  
Xiao Dong Li
Keyword(s):  
Optical Properties ◽  
Surface Plasmon Resonance ◽  
Metal Oxide ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Quantum Confinement ◽  
Localized Surface Plasmon Resonance ◽  
Metal Films ◽  
Localized Surface Plasmon ◽  
Free Electrons

scholarly journals Gold Nano-Island Platforms for Localized Surface Plasmon Resonance Sensing: A Short Review

Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4661
Author(s):  
Simona Badilescu ◽  
Duraichelvan Raju ◽  
Srinivas Bathini ◽  
Muthukumaran Packirisamy
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Short Review ◽  
Metal Films ◽  
Localized Surface Plasmon ◽  
Nanoparticle Films ◽  
Surrounding Environment ◽  
Post Deposition

Nano-islands are entities (droplets or other shapes) that are formed by spontaneous dewetting (agglomeration, in the early literature) of thin and very thin metallic (especially gold) films on a substrate, done by post-deposition heating or by using other sources of energy. In addition to thermally generated nano-islands, more recently, nanoparticle films have also been dewetted, in order to form nano-islands. The localized surface plasmon resonance (LSPR) band of gold nano-islands was found to be sensitive to changes in the surrounding environment, making it a suitable platform for sensing and biosensing applications. In this review, we revisit the development of the concept of nano-island(s), the thermodynamics of dewetting of thin metal films, and the effect of the substrate on the morphology and optical properties of nano-islands. A special emphasis is made on nanoparticle films and their applications to biosensing, with ample examples from the authors’ work.

Photothermal Properties of Near-Spherical Gold Nanofluids With Strong Localized Surface Plasmon Resonance

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Wang Lingling ◽  
Zhu Guihua ◽  
Yu Wei ◽  
Zhu Dahai ◽  
Zhang Yingchun ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Optical Properties ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Great Influence ◽  
Reducing Agents ◽  
Localized Surface Plasmon ◽  
Photothermal Conversion

Near-spherical gold nanoparticles were synthesized using a facile chemical reduction method. The optical properties, size, and morphology of nanofluids were characterized using ultraviolet–visible–near-infrared (UV–Vis–NIR) spectroscopy and transmission electron microscope (TEM). All the gold nanofluids showed better photothermal conversion characteristics than H2O due to the strong localized surface plasmon resonance (LSPR) effect. The increase in gold nanoparticles diameters resulted in lower photothermal conversion properties, so the appropriate reducing agents have great influence on the optical properties of gold nanofluids in our experimental system. Trisodium citrate is the optimum reducing agents compared with NaBH4 and ascorbic acid (AA).

Strain‐Induced Modulation of Localized Surface Plasmon Resonance in Ultrathin Hexagonal Gold Nanoplates

2021 ◽  
pp. 2100653
Author(s):  
Gyeong‐Su Park ◽  
Kyung Suk Min ◽  
Hyuksang Kwon ◽  
Sangwoon Yoon ◽  
Sangwon Park ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Localized Surface Plasmon
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