scholarly journals Enhanced structural color generation in aluminum metamaterials coated with a thin polymer layer

2015 ◽  
Vol 23 (19) ◽  
pp. 25329 ◽  
Author(s):  
Fei Cheng ◽  
Xiaodong Yang ◽  
Daniel Rosenmann ◽  
Liliana Stan ◽  
David Czaplewski ◽  
...  
Keyword(s):  
Polymer Layer ◽  
Structural Color ◽  
Thin Polymer

scholarly journals Atomically Thin Polymer Layer Enhances Toughness of Graphene Oxide Monolayers

Matter ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 369-388 ◽  
Author(s):  
Rafael A. Soler-Crespo ◽  
Lily Mao ◽  
Jianguo Wen ◽  
Hoang T. Nguyen ◽  
Xu Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Polymer Layer ◽  
Thin Polymer

Reflection by Embedded Copper Plane and Volumetric Heating in Laser Microvia Drilling

2008 ◽  
Vol 5 (3) ◽  
pp. 126-134
Author(s):  
Chong Zhang ◽  
Islam A. Salama ◽  
Yonggang Li ◽  
Nathaniel R. Quick ◽  
Aravinda Kar
Keyword(s):  
Laser Beam ◽  
Material Removal ◽  
Laser Energy ◽  
Polymer Layer ◽  
Drilling Process ◽  
Copper Sheet ◽  
Microelectronics Packaging ◽  
Volumetric Heating ◽  
Nanosecond Pulsed Laser ◽  
Thin Polymer

A finite difference thermal model is developed to analyze volumetric heating during laser drilling. The substrates of interest are multilayered polymeric sheets containing an embedded copper plane, which are generally used for high-density microelectronics packaging, and the laser of interest is a CO2 laser of wavelength 9.3 μm. Both the incident laser beam propagating toward the embedded copper plane and the beam reflected upward by the copper plane contribute to the volumetric heating of the substrate, which is the main mechanism for material removal. When the polymer layer above the copper sheet thins down as drilling progresses, the exit of the laser beam from the polymer layer after reflection by the copper sheet and the heat conduction within copper increase the energy loss significantly, making the process energetically inefficient. Consequently, the material-removal capability of the process diminishes, and a very thin polymer layer is left as residue on top of the copper sheet. The thickness of the residue depends mainly on the laser pulse width as predicted by the model. A nanosecond pulsed laser is found to effectively reduce the residue thickness to about 0.1 μm. The reflected laser energy, however, is found to contribute to the drilling process when the thickness of the polymer is higher than the absorption depth.

Suppression of photocorrosion in CdS/CdSe quantum dot-sensitized solar cells: Formation of a thin polymer layer on the photoelectrode surface

2013 ◽  
Vol 165 ◽  
pp. 60-63 ◽  
Author(s):  
Wonjoo Lee ◽  
Hae Jung Son ◽  
Doh-Kwon Lee ◽  
BongSoo Kim ◽  
Honggon Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Polymer Layer ◽  
Thin Polymer ◽  
Cdse Quantum Dot ◽  
Sensitized Solar Cells

Thin polymer-layer decorated, structure adjustable crystals of nanoparticles

2015 ◽  
Vol 17 (35) ◽  
pp. 22533-22537 ◽  
Author(s):  
Xue-Zheng Cao ◽  
Zhi-Guang Duan ◽  
Jun-Shu Wang ◽  
Wei Cui ◽  
Yong-Song Liu ◽  
...  
Keyword(s):  
Thin Layer ◽  
Polymer Chains ◽  
Polymer Layer ◽  
Two Dimensional ◽  
Thin Polymer

Polymer chains take a two dimensional thin layer conformation on substrates, instead of being stretched by dense nanoparticles.

scholarly journals Efficient construction of a redox responsive thin polymer layer on glassy carbon and gold surfaces for voltage-gated delivery applications

2021 ◽  
Author(s):  
Anna Barosi ◽  
Avni Berisha ◽  
Claire Mangeney ◽  
Jean Pinson ◽  
Hamid Dhimane ◽  
...  
Keyword(s):  
Glassy Carbon ◽  
Polymer Layer ◽  
Gold Surfaces ◽  
Voltage Gated ◽  
Thin Polymer ◽  
Redox Responsive ◽  
Efficient Construction ◽  
Tethered Ligands

The notoriously non-selective aryl-diazonium surface-functionnalization turned selective in the presence of the electron-deficient heterocycle. The electro-activation of the probe allowed the rapid and nearly quantitative liberation of covalently tethered ligands.

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