File:Electrohydrodynamic instability patterning in a thin polymer film. 500x magnification reflected light.tif
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DescriptionElectrohydrodynamic instability patterning in a thin polymer film. 500x magnification reflected light.tif |
English: The dark circles are micro-pillars formed by an electrohydrodynamic instability in a thin polymer film. The pillars were created by spin-coating a liquid polymer onto an electrode to be used in a parallel plate capacitor. A top electrode is then placed on top of the first with an air gap between them. When a voltage is applied across the two capacitor electrodes, the pillars grow in the liquid polymer as a result of electrohydrodynamic instabilities at the interface between the polymer and the air. The brightly coloured areas (left) show where pillars are forming. The pillars are 20x smaller than the width of a human hair. The colours in the image are the result of thin film interference where light interacts with very thin layers of material. The resulting surfaces are used in tissue culture and optics. |
Date | |
Source | Own work |
Author | Claire Trease, Kingston University |
Licensing[edit]
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
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This image was uploaded as part of European Science Photo Competition 2015. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:11, 30 November 2015 | 2,048 × 1,536 (7.05 MB) | K1167189 (talk | contribs) | User created page with UploadWizard |
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Image title | Exposure: 000 : 00 : 00 . 133 : 972
Binning: 1 x 1 Gain: 0.895000 %Accumulated%=0 |
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Date and time of data generation | 15:34, 17 April 2015 |
Width | 2,048 px |
Height | 1,536 px |
Bits per component |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 2 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CC 2014 (Macintosh) |
File change date and time | 10:12, 22 April 2015 |
Date and time of digitizing | 15:34, 17 April 2015 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |