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The Summer Undergraduate Research Fellowship (SURF) Symposium

3D printing

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Full-Text Articles in Nanoscience and Nanotechnology

Investigation Of Itx Derivative Photoinitiators For Depletion Lithography, Ran Le, Paul Somers, Liang Pan, Xianfan Xu, Teng Chi, Bryan Boudouris Aug 2018

Investigation Of Itx Derivative Photoinitiators For Depletion Lithography, Ran Le, Paul Somers, Liang Pan, Xianfan Xu, Teng Chi, Bryan Boudouris

The Summer Undergraduate Research Fellowship (SURF) Symposium

Direct laser writing (DLW) with two-photon polymerization (TPP) allows for fabricating 3-dimensional nano-scale polymer structures by focusing an ultrafast laser inside a photoresist system consisting of a monomer and photoinitiator. The photoinitiator is excited by the laser and triggers the polymerization process of the monomer. Stimulated emission depletion (STED), which was designed for resolution enhancement for microscopy, could be applied to this process and inhibit the polymerization with an additional laser for depletion. This STED process can be used to increase the resolution of the 3D printing. However, the photoresist for STED-DLW should contain a photoinitiator that is sensitive to ...


3d Printing Nanostructured Thermoelectric Device, Qianru Jia, Collier Miers, Amy Marconnet Aug 2015

3d Printing Nanostructured Thermoelectric Device, Qianru Jia, Collier Miers, Amy Marconnet

The Summer Undergraduate Research Fellowship (SURF) Symposium

Thermoelectric materials convert thermal energy to electrical energy and vice versa. Thermoelectrics have attracted much attention and research efforts due to the possibility solving electronic cooling problems and reducing energy consumption through waste heat recovery. The efficiency of a thermoelectric material is determined by the dimensionless figure of merit ZT, which depends on both thermal and electrical properties. Researchers have worked for several decades to improve the ZT, but there had been little progress until nanomaterials and nanofabrication became widely available. Nanotechnology makes the ZT enhancement attainable by disconnecting the linkage between thermal and electrical transport. Printing customized, flexible thermoelectric ...