January 2007 - Bnc-grads-list

Building services, RESTROOMS, on behalf of Dan Hinrichs
by Starewich, Deborah S. 31 Jan '07

31 Jan '07

In an effort to keep our new building looking new and fresh -- not only for the occupants but for our visitors, Building Services will be doing a "refresh" of the restrooms daily about 12:30. For convenience, the first and second floor restrooms will not be closed at the same time. Thanks for teaming up with the custodial crew to keep our building looking great :) Deborah S. Starewich Administrative Assistant to Timothy D. Sands, Director Birck Nanotechnology Center Purdue University 765-494-3509 dstarewi(a)ecn.purdue.edu http://www.nano.purdue.edu/

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Nano Seminar: Sangho Kim, Purdue, 2/1/07 @ 10:30 AM, BRK 1001 (Hexagonal Prism Blue Diode Laser Using Whispering Gallery Mode (WGM) Resonances)
by Annette M Cheever 29 Jan '07

29 Jan '07

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Fwd: REMINDER: Nano Seminar: Placidus Amama INAC Postdoctoral Fellow BNC, Purdue, 1/25/07 @ 10:30 AM, BRK 1001 (Dendrimer-Templated Catalyst for Controlled Growth of Single-Wall Carbon Nanotubes by Plasma-Enhanced CVD)
by Annette M Cheever 25 Jan '07

25 Jan '07

Begin forwarded message: > From: Annette M Cheever <acheever(a)ecn.purdue.edu> > Date: January 24, 2007 3:11:48 PM EST > Subject: REMINDER: Nano Seminar: Placidus Amama INAC Postdoctoral > Fellow BNC, Purdue, 1/25/07 @ 10:30 AM, BRK 1001 (Dendrimer- > Templated Catalyst for Controlled Growth of Single-Wall Carbon > Nanotubes by Plasma-Enhanced CVD) > >> From: Annette M Cheever <acheever(a)ecn.purdue.edu> >> Date: January 23, 2007 8:35:06 AM EST >> Subject: Nano Seminar: Placidus Amama INAC Postdoctoral Fellow >> BNC, Purdue, 1/25/07 @ 10:30 AM, BRK 1001 (Dendrimer-Templated >> Catalyst for Controlled Growth of Single-Wall Carbon Nanotubes by >> Plasma-Enhanced CVD) >> >> “Dendrimer-Templated Catalyst for Controlled Growth of >> Single-Wall Carbon Nanotubes by Plasma-Enhanced CVD” >> >> Thursday, January 25, 2007 >> 10:30 AM >> Birck Nanotechnology Building, Room 1001 >> >> Placidus Amama >> INAC Postdoctoral Fellow >> Birck Nanotechnology Center >> >> Carbon nanotubes (CNTs) are an important class of materials with >> several technological applications because they possess >> unparalleled properties in terms of ballistic electrical >> conductivity, thermal conductivity, tensile strength, and >> sensitivity to chemical and biological agents. To exploit these >> properties in functional devices, a major barrier that must be >> addressed is the ability to control important properties such as >> diameter, chirality, quality, density, and alignment. There is >> also the need to reduce the growth temperatures of CNTs (below 400° >> C) to enable growth on a variety of sensitive, pre-functionalized >> substrates, thereby making the growth process compatible with >> current nanofabrication technology. This talk focuses on the >> development of a suitable catalytic template for the controlled >> growth of single-wall carbon nanotubes (SWNTs) by plasma-enhanced >> CVD. An amine-terminated fourth-generation poly (amidoamine) >> (PAMAM) dendrimer with numerous reactive functional groups has >> been used as carriers to deliver nearly monodispersed Fe2O3 >> nanoparticles (3.2 ±1nm) on different substrates. Microwave PECVD >> growth with these Fe2O3 nanoparticles supported on Al2O3 >> substrates and annealed in an N2 ambient result in enhanced SWNT >> selectivity, quality and diameter uniformity. The application of >> dc bias voltage during SWNT growth seems to selectively remove >> amorphous carbon and metallic SWNTs, leaving mainly large-diameter >> semi-conducting SWNTs. Using these catalyst nanoparticles; a >> shielded growth approach has been developed for the growth of CNTs >> at low temperatures (200-400°C). Postmortem characterization of >> the catalytic template by XPS has provided insights into the >> growth mechanism of CNTs. >> >> Placidus Amama received his Ph.D. in Environmental Engineering >> from Yokohama National University, Japan. He is currently an INAC >> postdoctoral fellow working with Prof. Sands and Prof. Fisher. >> Earlier, he was a postdoctoral researcher at the Department of >> Chemical Engineering, Yale University. His research interests >> include heterogeneous catalysis, carbon nanotubes and >> nanostructured materials, nanotube processing and device fabrication. >> >> SPONSORED BY: >> Birck Nanotechnology Center, Bindley Bioscience Center, Discovery >> Park, The NASA Institute for Nanoelectronics and Computing, The >> Network for Computational Nanotechnology, VEECO, NCN Student >> Leadership Council, Department of Chemistry, Department of >> Physics, School of Chemical Engineering, School of Electrical and >> Computer Engineering, School of Mechanical Engineering >

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Kick-off Party, sent on behalf of the NSAC
by Starewich, Deborah S. 19 Jan '07

19 Jan '07

The Nanotechnology Student Advisory Council is having a kick-off party on Tuesday, January 23rd at NOON in BRK 1001. Lunch will be provided by the council, and all of the grad students are welcome! Please join us and let us fill you in on what NSAC has done and what we can do for you! If you have any questions, please contact Bridget Hines (bdolash(a)purdue.edu, Room 2088). Hope to see you there! Bridget

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Directory updated
by Starewich, Deborah S. 16 Jan '07

16 Jan '07

please advise of any changes Deborah S. Starewich Administrative Assistant to Tim Sands, Director Birck Nanotechnology Center Purdue University 1205 W. State Street West Lafayette IN 47907-2057 765-494-3509 Fax 765-496-8383 www.nano.purdue.edu

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