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| Title: | High resolution patterning of silica aerogels |
| Author (s): | Bertino, Massimo Hund, J. F. Sosa, J. Zhang, G. Sotiriou-Leventis, Lia Leventis, Nicholas Tokuhiro, Akira Terry, J. |
| Department/Lab Affiliations: | Chemistry Mining & Nuclear Engineering Physics |
| Keywords: | Non-Crystalline Solids aerogels hydrogels silica |
| Issue Date: | 2004-01-01 |
| Publisher: | Elsevier |
| Citation: | Bertino, Massimo F., Hund, J.F., Sosa J., Zhang, G., Sortiriou-Leventis, Chariklia(Lia)., Leventis, Nicholas., Tokuhiro, Akira T., Terry, J. "High Resolution Patterning of Silica Aerogels." Journal of Non-Crystalline Solids, vol. 333, no. 1, (2004). |
| Abstract: | Three-dimensional metallic structures are fabricated with high spatial resolution in silica aerogels. In our method, silica hydrogels are prepared with a standard base-catalyzed route, and exchanged with an aqueous solution typically containing Ag+ ions (1 M) and 2-propanol (0.2 M). The metal ions are reduced photolytically with a table-top ultraviolet lamp, or radiolytically, with a focused X-ray beam. We fabricated dots and lines as small as 30 × 70 μm, protruding for several mm into the bulk of the materials. The hydrogels are eventually supercritically dried to yield aerogels, without any measurable change in the shape and spatial resolution of the lithographed structures. Transmission electron microscopy shows that illuminated regions are composed by Ag clusters with a size of several μm, separated by thin layers of silica. |
| Type: | Article - Journal text |
| In Title: | Journal of Non-Crystalline Solids |
| Copyright Notice: | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. FULL COPYRIGHT INFORMATION: |
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| title | High resolution patterning of silica aerogels |
| contributor.author | Bertino, Massimo |
| contributor.author | Hund, J. F. |
| contributor.author | Sosa, J. |
| contributor.author | Zhang, G. |
| contributor.author | Sotiriou-Leventis, Lia |
| contributor.author | Leventis, Nicholas |
| contributor.author | Tokuhiro, Akira |
| contributor.author | Terry, J. |
| contributor.deptlab | Chemistry |
| contributor.deptlab | Mining & Nuclear Engineering |
| contributor.deptlab | Physics |
| subject | Non-Crystalline Solids |
| subject | aerogels |
| subject | hydrogels |
| subject | silica |
| date.issued | 2004-01-01 |
| publisher | Elsevier |
| identifier.citation | Bertino, Massimo F., Hund, J.F., Sosa J., Zhang, G., Sortiriou-Leventis, Chariklia(Lia)., Leventis, Nicholas., Tokuhiro, Akira T., Terry, J. "High Resolution Patterning of Silica Aerogels." Journal of Non-Crystalline Solids, vol. 333, no. 1, (2004). |
| identifier.pub.URI | |
| description.abstract | Three-dimensional metallic structures are fabricated with high spatial resolution in silica aerogels. In our method, silica hydrogels are prepared with a standard base-catalyzed route, and exchanged with an aqueous solution typically containing Ag+ ions (1 M) and 2-propanol (0.2 M). The metal ions are reduced photolytically with a table-top ultraviolet lamp, or radiolytically, with a focused X-ray beam. We fabricated dots and lines as small as 30 × 70 μm, protruding for several mm into the bulk of the materials. The hydrogels are eventually supercritically dried to yield aerogels, without any measurable change in the shape and spatial resolution of the lithographed structures. Transmission electron microscopy shows that illuminated regions are composed by Ag clusters with a size of several μm, separated by thin layers of silica. |
| type | Article - Journal |
| type.DCMIType | text |
| type.status | Final version |
| relation.isPartOf | Journal of Non-Crystalline Solids |
| rights | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| rights.URI | |
| date.accessioned | 2007-04-11T17:00:48Z |
| date.available | 2008-04-07T16:25:01Z |
| identifier.persist.URI |