Plastic make everything more transparent and elektroprovodka Wolf | 14.07.2020
Attempts to improve touch screens, led panel and built-in infrared Windows, solar cells, led researchers from American and Chinese universities to establish transparent
conductive plastic, light transmission, has surpassed the quality of conventional non-conductive material. This publication reports ScienceDaily.
The light transmission through the plastic slightly lower than glass, but its transparency can be improved by using antireflection coatings. Professor Jay Guo (Jay Guo) from Michigan University (University
of Michigan) and his colleague Dong Liu (Dong Liu), Professor of Nanjing University of science and technology (Nanjing University of Science and Technology), have realized that they can make effective
the antireflection coating not only improves light transmission, but also conductive.
To create a new kind of conductive plastic, the scientists used a three-layer structure. The conductive metal layer, it is sandwiched between two “dielectric” materials that reduce
the reflection from the plastic and the metal layer between them.
The team selected insulators – aluminum oxide and zinc oxide. On the side closest to the light source is aluminium oxide, then comes the metal layer consisting of silver with a small
the amount of copper of a thickness of 6.5 nm, and then the zinc oxide. The transmission of this multilayer coating was 0.3% better than the homogeneous plastic (88,4% compared to 88.1% for
the clear plastic).
“We have developed a method for producing coatings with high transparency and conductivity, low turbidity, excellent flexibility, ease of fabrication and good compatibility with various
surfaces,” said Professor Jay Guo, who led the research.
“It was taken for granted that the transmittance of the conductor lower than that of the substrate, but we show that it is not so”, – said the employee of the University of Michigan, Changing g
(Chengang Ji), the author of the study in Nature Communications, also worked on the project.
The team of researchers created the transparent conductive plastic sure experimenting with different materials, you can create a more flexible and transparent conductors sandwich type.
Studies have a direct practical purpose, such materials look forward to manufacturers of solar panels and special coatings for Windows, which can absorb infrared
radiation and convert it into electricity, leaving the visible spectrum for illumination of the room. Transparent conductive plastic useful also to improve the quality of interactive displays and
heated automotive windscreens.
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