laser – TechConnect Briefs

Fabrication of a Lower Weight, All 3D Printed Graphene Supercapacitor

Yu Z., Dobbs S., Anderson K., Sun P., Zhu B., Nair A., Wu S., California State Polytechnic University, Pomona, US

Graphene is under intensive study for energy storage devices, such as batteries and supercapacitors, due to its energy density and ability to recharge. These properties make graphene well suited for electric powered UAVs with the [...]

Laser Carbon Interactions

Vander Wal R., Abrahamson J., Penn State University, US

This presentation describes laser heating of carbon materials. The carbon industry has been annealing carbon via traditional furnace heating since at least 1800, when Sir Humphry Davy produced an electric arc with carbon electrodes made [...]

Harsh environment low cost LIBS sensor for sub-surface CO2 leak detection in carbon sequestration

Jain J., Goueguel C.L., National Energy Technology Laboratory, US

The U.S. Department of Energy’s carbon capture and sequestration (CCS) program goals to reduce emissions of carbon dioxide (CO2) from anthropogenic sources will require great cost and effort. To ensure the success of the program [...]

Laser Annealing Nanoscale Carbons: Material Transformations

Vander Wal R., Abrahamson J., Gaddam C., Penn State University, US

Laser processing of materials is not new, but using lasers to anneal, bond and otherwise transform carbons is. Fundamental understanding of the dependence upon carbon structure, morphology and chemistry is critical to implementing this technology [...]

3D laser writing in-line process for the rapid fabrication of flexible electronic devices

Dubourg G., Marjanović S., Zlebic C., Matovic J., Crnojević Bengin V., Biosense Center, RS

In this work, we present for the first time a new approach of a 3D direct laser writing which allows the patterning of several layers in a single step by adjusting the parameters of the [...]

Pulsed Laser Annealing of Nanocarbon Materials

Vander Wal R.L., Gaddam C.K., Penn State University, US

Pulsed laser annealing of nanocarbons, with focus upon soot was performed using a Nd:YAG laser operating at 1064 nm and laser fluence of 250 mJ/cm2. A gated intensified CCD captured the spectra of the material [...]

Application of alumina-based nanogold catalysts in gas mask and CO2 laser

Qi C., Su H., Sun X., Guan R., Lin H., Sun X., Zheng Y., An L., Yantai Univeristy, CN

We have found that Au nanoparticles on Al2O3 (a popular commercially available support material) show surprisingly high activities for CO oxidation when properly prepared [6-11]. Our proprietary catalyst, Au deposited on a ferrite-modified alumina prepared [...]

Application of alumina-based nanogold catalysts in gas mask and CO2 laser

Qi C., Su H., Sun X., Guan R., Lin H., Sun X., Zheng Y., An L., Yantai Univeristy, CN

We have found that Au nanoparticles on Al2O3 (a popular commercially available support material) show surprisingly high activities for CO oxidation when properly prepared [6-11]. Our proprietary catalyst, Au deposited on a ferrite-modified alumina prepared [...]

Production technologies for large area flexible electronics

Kolbusch T., Crone K., Coatema Coating Machinery GmbH, DE

There is a wide variety of printed large area flexible electronic devices and at the same time a number of different visions and estimates for this new emerging industry and market. But as every new [...]

Pulsed laser generation of clean colloidal metal nanoparticles

Bärsch N., Bartke D., Barcikowski S., Particular GmbH, DE

In contrast to colloidal chemistry, pulsed laser ablation in liquids is a physical process that generates nanoparticles e.g. from precious metals or alloys directly in water or organic solvents. Zeta potential values up to -80 [...]