Gold nanoparticle array formation on dimpled Ta templates using pulsed laser-induced thin film dewetting

2015 ◽  
Vol 17 (16) ◽  
pp. 11062-11069 ◽  
Author(s):  
Hany A. El-Sayed ◽  
Corie A. Horwood ◽  
Ebenezer Owusu-Ansah ◽  
Yujun J. Shi ◽  
Viola I. Birss
Keyword(s):  
Thin Film ◽  
Gold Nanoparticle ◽  
Pulsed Laser ◽  
Au Nanoparticle ◽  
Nanoparticle Array

Au nanoparticle array formed on a dimpled Ta template using laser-induced thin film dewetting.

One-step integration of a multiple-morphology gold nanoparticle array on a TiO2filmviaa facile sonochemical method for highly efficient organic photovoltaics

2018 ◽  
Vol 6 (18) ◽  
pp. 8419-8429 ◽  
Author(s):  
Weijing Shao ◽  
Zhiqiang Liang ◽  
Tianfu Guan ◽  
Jianmei Chen ◽  
Zhifang Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
Absorption Band ◽  
Gold Nanoparticle ◽  
Organic Photovoltaics ◽  
Device Performance ◽  
Sonochemical Method ◽  
Nanoparticle Array ◽  
Au Nps ◽  
Highly Efficient ◽  
One Step

Well-dispersed Au NPs arrays with multiple morphology are integrated on a TiO2thin filmviaa facile sonochemical approach, which exhibit a broadened absorption band, and enable a noticeable enhancement in device performance of organic photovoltaics.

scholarly journals Phonons spreading from laser-heated gold nanoparticle array accelerate diffusion of excitons in an underlying polythiophene thin film

2017 ◽  
Vol 19 (16) ◽  
pp. 10562-10570 ◽  
Author(s):  
David Rais ◽  
Miroslav Menšík ◽  
Bartosz Paruzel ◽  
Dharmalingam Kurunthu ◽  
Jiří Pfleger
Keyword(s):  
Thin Film ◽  
Gold Nanoparticle ◽  
Au Nanoparticles ◽  
Transient Absorption ◽  
Nanoparticle Array ◽  
Absorption Experiment ◽  
Exciton Annihilation ◽  
Laser Heated

Phonons emitted from laser-heated plasmonic Au nanoparticles caused an increased rate of mutual exciton annihilation observed in a transient absorption experiment.

Effects of particle size and annealing on plasmon-induced charge separation at self-assembled gold nanoparticle arrays

2018 ◽  
Vol 20 (5) ◽  
pp. 3735-3740 ◽  
Author(s):  
Kun-Che Kao ◽  
Hiroyasu Nishi ◽  
Tetsu Tatsuma
Keyword(s):  
Particle Size ◽  
Gold Nanoparticle ◽  
Quantum Efficiency ◽  
Charge Separation ◽  
Internal Quantum Efficiency ◽  
Au Nanoparticle ◽  
Nanoparticle Array ◽  
Nanoparticle Arrays ◽  
Induced Charge ◽  
Interface Mode

The internal quantum efficiency of plasmon-induced charge separation of a Au nanoparticle array on TiO2 without interparticle coupling increases with decreasing particle size. The efficiency is also improved by the enhancement of a plasmonic interface mode.

Observations on the growth of YBa2Cu3O7-δ thin films on MgO by pulsed-laser ablation

1991 ◽  
Vol 49 ◽  
pp. 1068-1069
Author(s):  
M. Grant Norton ◽  
C. Barry Carter
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Laser Ablation ◽  
Substrate Surface ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Laser Ablation Process ◽  
Deposition Parameters

Pulsed-laser ablation has been widely used to produce high-quality thin films of YBa2Cu3O7-δ on a range of substrate materials. The nonequilibrium nature of the process allows congruent deposition of oxides with complex stoichiometrics. In the high power density regime produced by the UV excimer lasers the ablated species includes a mixture of neutral atoms, molecules and ions. All these species play an important role in thin-film deposition. However, changes in the deposition parameters have been shown to affect the microstructure of thin YBa2Cu3O7-δ films. The formation of metastable configurations is possible because at the low substrate temperatures used, only shortrange rearrangement on the substrate surface can occur. The parameters associated directly with the laser ablation process, those determining the nature of the process, e g. thermal or nonthermal volatilization, have been classified as ‘primary parameters'. Other parameters may also affect the microstructure of the thin film. In this paper, the effects of these ‘secondary parameters' on the microstructure of YBa2Cu3O7-δ films will be discussed. Examples of 'secondary parameters' include the substrate temperature and the oxygen partial pressure during deposition.

scholarly journals Plasmon-Enhanced Sunlight Harvesting in Thin-Film Solar Cell by Randomly Distributed Nanoparticle Array

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1380
Author(s):  
Marwa M. Tharwat ◽  
Ashwag Almalki ◽  
Amr M. Mahros
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Near Infrared ◽  
Structural Parameters ◽  
Visible Region ◽  
Nanoparticle Array ◽  
Solar Energy Harvesting ◽  
Infra Red ◽  
Crucial Parameter

In this paper, a randomly distributed plasmonic aluminum nanoparticle array is introduced on the top surface of conventional GaAs thin-film solar cells to improve sunlight harvesting. The performance of such photovoltaic structures is determined through monitoring the modification of its absorbance due to changing its structural parameters. A single Al nanoparticle array is integrated over the antireflective layer to boost the absorption spectra in both visible and near-infra-red regimes. Furthermore, the planar density of the plasmonic layer is presented as a crucial parameter in studying and investigating the performance of the solar cells. Then, we have introduced a double Al nanoparticle array as an imperfection from the regular uniform single array as it has different size particles and various spatial distributions. The comparison of performances was established using the enhancement percentage in the absorption. The findings illustrate that the structural parameters of the reported solar cell, especially the planar density of the plasmonic layer, have significant impacts on tuning solar energy harvesting. Additionally, increasing the plasmonic planar density enhances the absorption in the visible region. On the other hand, the absorption in the near-infrared regime becomes worse, and vice versa.

scholarly journals Devitrification of thin film Cu-Zr metallic glass via ultrashort pulsed laser annealing

2021 ◽  
pp. 161437
Author(s):  
J. Antonowicz ◽  
P. Zalden ◽  
K. Sokolowski-Tinten ◽  
K. Georgarakis ◽  
R. Minikayev ◽  
...  
Keyword(s):  
Thin Film ◽  
Metallic Glass ◽  
Laser Annealing ◽  
Pulsed Laser ◽  
Pulsed Laser Annealing ◽  
Ultrashort Pulsed Laser

scholarly journals Growth of Nd:potassium gadolinium tungstate thin-film waveguides by pulsed laser deposition

2000 ◽  
Vol 76 (18) ◽  
pp. 2490-2492 ◽  
Author(s):  
P. A. Atanasov ◽  
R. I. Tomov ◽  
J. Perriére ◽  
R. W. Eason ◽  
N. Vainos ◽  
...  
Keyword(s):  
Thin Film ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Thin Film Waveguides
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