File:Masked PDAMNA Film On Glass (5277460591).jpg
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[edit]DescriptionMasked PDAMNA Film On Glass (5277460591).jpg |
Description: Polydiacetylenes are a unique class of highly conjugated organic polymers that are of interest for both electronic and photonic applications. Photodeposition from solutions is a novel process superior to those grown by conventional techniques. Evidence of this is seen when the films are viewed under a microscope; they exhibit small particles of solid polymer which form in the bulk solution, get transported by convection to the surface of the growing film, and become embedded. Also convection tends to cause the film thickness to be less uniform, and may even affect the molecular orientation of the films. The thrust of the research is to investigate in detail, both in 1-g and low-g, the effects of convection (and lack thereof) on this novel and interesting reaction. In this example, a portion of the substrate was blocked from exposure to the UV light by the mask, which was placed on the opposite side of the glass disk as the film, clearly demonstrating that photodeposition occurs only where the substrate is irradiated directly. Identifier: MSFC-9804673 |
Date | |
Source | Masked PDAMNA Film On Glass |
Author | NASA on The Commons |
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NASA on The Commons @ Flickr Commons |
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[edit]This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as: No known copyright restrictionsNo restrictionshttps://www.flickr.com/commons/usage/false
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This image was originally posted to Flickr by NASA on The Commons at https://flickr.com/photos/44494372@N05/5277460591. It was reviewed on 16 September 2016 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions. |
16 September 2016
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current | 00:37, 16 September 2016 | 1,021 × 1,024 (73 KB) | Vanished Account Byeznhpyxeuztibuo (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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