Photo-Physics and Renewable Energy Applications of Single-Walled Carbon Nanotubes

submitted by: RASEIBoulder
Summary: Single-walled carbon nanotubes (SWNTs) are two-dimensionally confined quantum wires that have the potential to impact a variety of renewable energy applications. SWCNTs have several fundamental properties that make them attractive for sustainable energy conversion technologies, including high electron and hole mobilities, size-tunable ionization potentials and electron affinities in an energy range relevant to many photovoltaic devices, and optical transitions in the visible and...

GREEN REVOLUTION: DISCOVER

submitted by: nsf
A trip to Snowy River, a bright white crystalline formation found deep within Fort Stanton Cave in New Mexico, reveals a lot about life and energy in unexpected places. Host Lisa Van Pay meets Diana Northup and Monica Moya, researchers who study life in caves. As they explore the cave they ask questions, think of possible answers and ways to test them, and discuss how to share their findings with the community. Together, science and engineering have resulted in advancements that have changed...

New Nanostructured Li2S/Silicon Rechargeable Battery with High Specific Energy

submitted by: yuanyang
Rechargeable lithium ion batteries are important energy storage devices; however, the specific energy of existing lithium ion batteries is still insufficient for many applications due to the limited specific charge capacity of the electrode materials. The recent development of sulfur/mesoporous carbon nanocomposite cathodes represents a particularly exciting advance, but in full battery cells, sulfur-based cathodes have to be paired with metallic lithium anodes as the lithium source, which...
Authors: Yuan Yang, Yi Cui, Matthew t. Mcdowell, Ariel Jackson, Judy j. Cha, Seung sae Hong

Stretchable, Porous, and Conductive Energy Textiles

submitted by: yuanyang
Recently there is strong interest in lightweight, flexible, and wearable electronics to meet the technological demands of modern society. Integrated energy storage devices of this type are a key area that is still significantly underdeveloped. Here, we describe wearable power devices using everyday textiles as the platform. With an extremely simple “dipping and drying” process using single-walled carbon nanotube (SWNT) ink, we produced highly conductive textiles with conductivity of...
Authors: Liangbing Hu, Yi Cui, Mauro Pasta, Fabio La mantia, Lifeng Cui, Sangmoo Jeong, Heather dawn Deshazer, Jang wook Choi, Seung min Han

Scalable Coating and Properties of Transparent, Flexible, Silver Nanowire Electrodes

submitted by: yuanyang
We report a comprehensive study of transparent and conductive silver nanowire (Ag NW) electrodes, including a scalable fabrication process, morphologies, and optical, mechanical adhesion, and flexibility properties, and various routes to improve the performance. We utilized a synthesis specifically designed for long and thin wires for improved performance in terms of sheet resistance and optical transmittance. Twenty ohm/sq and 80% specular transmittance, and 8 ohms/sq and 80% diffusive...
Authors: Liangbing Hu, Yi Cui, Han sun Kim, Jung-yong Lee, Peter Peumans

Interaction of Blood Plasma Proteins with Gold Nanoparticles

submitted by: LacerdaS

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Authors: Jack Douglas, Silvia Lacerda, Jung jin Park, Curt Meuse, Denis Pristinski, Matthew l. Becker, Alamgir Karim

Electrospun Nanofibre - Free Floating Chaos

submitted by: arkore
Electrospinning is a method of using high voltage electric fields to transform polymer solutions into nanofibre. The process involves applying high voltage (~10 kV) to a droplet of solution at the end of a capillary (which is visible on the left in the video). The surface charge on the droplet distorts the shape from that adopted by surface tension into what is known as the Taylor cone. From the tip of this cone a jet is ejected in response to the electric stresses on the fluid at that...

Nanoinformatics Talk on SMIRP and Open Notebook Science

submitted by: jcbradley
Jean-Claude Bradley presents on "The implications of Open Notebook Science and other new forms of scientific communication for Nanoinformatics" at the Nanoinformatics 2010 conference on November 3, 2010. The presentation first covers the use of the laboratory knowledge management system SMIRP for nanotechnology applications during the period of 1999-2001 at Drexel University. The exporting of single experiments from SMIRP and publication to the Chemistry Preprint Archive is then described...

Nanomaterial Catalysts for Solar Hydrogen Generation

submitted by: icamvid

Frank Osterloh presents research on using nanostructures for hydrogen production using solar power.
Presented at the ICAM Annual Conference, January 2010.