scholarly journals Ultraviolet-Printing-Assisted Surface-Confined Growth of Silver Nanoparticles on Flexible Polymer Films for Cu2+ and H2S Sensing

2021 ◽  
Author(s):  
Binish Ashfaq ◽  
Iqra Azeem ◽  
Muhammad Sohail ◽  
Fatma Gözde Yüce ◽  
Senem Citoglu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Polymer Films ◽  
Flexible Polymer ◽  
Confined Growth

scholarly journals Experimental Study of Advanced Helmholtz Resonator Liners with Increased Acoustic Performance by Utilising Material Damping Effects

2018 ◽  
Vol 8 (10) ◽  
pp. 1923
Author(s):  
Martin Dannemann ◽  
Michael Kucher ◽  
Eckart Kunze ◽  
Niels Modler ◽  
Karsten Knobloch ◽  
...  
Keyword(s):  
Polymer Films ◽  
Helmholtz Resonator ◽  
Broadband Noise ◽  
Acoustic Energy ◽  
Acoustic Damping ◽  
Acoustic Performance ◽  
Acoustic Liners ◽  
Flexible Polymer ◽  
Noise Absorption ◽  
Aero Engines

In aero engines, noise absorption is realised by acoustic liners, e.g., Helmholtz resonator (HR) liners, which often absorb sound only in a narrow frequency range. Due to developments of new engine generations, an improvement of overall acoustic damping performance and in particular more broadband noise absorption is required. In this paper, a new approach to increase the bandwidth of noise absorption for HR liners is presented. By replacing rigid cell walls in the liner’s honeycomb core structure by flexible polymer films, additional acoustic energy is dissipated. A manufacturing technology for square honeycomb cores with partially flexible walls is described. Samples with different flexible wall materials were fabricated and tested. The acoustic measurements show more broadband sound absorption compared to a reference liner with rigid walls due to acoustic-structural interaction. Manufacturing-related parameters are found to have a strong influence on the resulting vibration behaviour of the polymer films, and therefore on the acoustic performance. For future use, detailed investigations to ensure the liner segments compliance with technical, environmental, and life-cycle requirements are needed. However, the results of this study show the potential of this novel liner concept for noise reduction in future aero-engines.

Preparation of Polyvinylidene Fluoride (PVDF) Triboelectric Nanogenerators with Different Polymer

2015 ◽  
Vol 814 ◽  
pp. 91-95
Author(s):  
Cheng Wang ◽  
Hao Yu ◽  
Tao Huang ◽  
Chao Tan
Keyword(s):  
Polymer Films ◽  
Polyvinylidene Fluoride ◽  
Low Cost ◽  
Mechanical Energy ◽  
Flexible Polymer ◽  
Surrounding Environment ◽  
Nanofiber Membranes ◽  
External Consistency ◽  
Low Wear ◽  
Triboelectric Nanogenerators

Triboelectric nanogenerators have recently been used to harvest mechanical energy from surrounding environment which is of great significance in the field of energy conversion. Electrospinning provides a simple, low cost and versatile method for the generation of 1D nanostrucutures. Nanofiber membranes have many advantages over the commonly used dense film for designing the riboelectric nanogenerators, such as the low wear resistance caused from the internal and excellent external consistency of the electrospinning membranes. In this paper, we produce a variety of polymer films by electro-spinning, and fabricate Polyvinylidene Fluoride (PVDF) triboelectric nanogenerators with different polymer films afterwards. We except to explore the TEG power generation effect, and influencing factors, and then determine the best combination of the results of TEG (PVDF-PHBV). Such a flexible polymer TEG generates output voltage of up to 112 V at a power of 0.045W.

Large-scale fabrication of all-inkjet-printed resistors and WORM memories on flexible polymer films with high yield and stability

2021 ◽  
Vol 6 (1) ◽  
pp. 015003
Author(s):  
Eloi Ramon ◽  
Enrico Sowade ◽  
Carme Martínez-Domingo ◽  
Kalyan Yoti Mitra ◽  
Ana Alcalde ◽  
...  
Keyword(s):  
Polymer Films ◽  
Large Scale ◽  
High Yield ◽  
Flexible Polymer

Polymer Films with Silver Nanoparticles Improve the Spectral Characteristics of Photovoltaic Converters

2020 ◽  
Vol 46 (1) ◽  
pp. 98-101
Author(s):  
L. S. Lunin ◽  
O. V. Devitskii ◽  
A. A. Kravtsov ◽  
A. S. Pashchenko
Keyword(s):  
Silver Nanoparticles ◽  
Polymer Films ◽  
Spectral Characteristics

Highly efficient Cu(In,Ga)Se2 solar cells grown on flexible polymer films

2011 ◽  
Vol 10 (11) ◽  
pp. 857-861 ◽  
Author(s):  
Adrian Chirilă ◽  
Stephan Buecheler ◽  
Fabian Pianezzi ◽  
Patrick Bloesch ◽  
Christina Gretener ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Films ◽  
Highly Efficient ◽  
Flexible Polymer

Switching behavior of plasma polymer films containing silver nanoparticles

2003 ◽  
Vol 94 (10) ◽  
pp. 6988-6990 ◽  
Author(s):  
A. Kiesow ◽  
J. E. Morris ◽  
C. Radehaus ◽  
A. Heilmann
Keyword(s):  
Silver Nanoparticles ◽  
Polymer Films ◽  
Plasma Polymer ◽  
Switching Behavior

scholarly journals Coherent random lasers in weakly scattering polymer films containing silver nanoparticles

2009 ◽  
Vol 79 (5) ◽  
Author(s):  
Xiangeng Meng ◽  
Koji Fujita ◽  
Shunsuke Murai ◽  
Katsuhisa Tanaka
Keyword(s):  
Silver Nanoparticles ◽  
Polymer Films ◽  
Random Lasers
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