National Renewable Energy Laboratory

The Clean Energy Landscape- Linking Cyberspace with Real World Impact

Wise A., National Renewable Energy Laboratory, US

NREL has launched a new open platform (http://openei.org/cee) that will help us to understand and engage the clean energy marketplace. We have designed an open source interface called the Clean Energy Economy Gateway that solicits [...]

Laying the Groundwork: Lessons Learned from the Telecommunications Industry for Distributed Generation

Wise A., National Renewable Energy Laboratory, US

The telecommunications industry went through growing pains over the past that hold some interesting lessons for the growing distributed generation “industry.” Public policy was crafted that helped to accelerate specific applications within the telecom industry, [...]

Studies of Hybrid Nano-Bio-System: Single-Walled Carbon Nanotubes and Hydrogenase

Svedruzic D., Blackburn J.L., McDonald T.J., Heben M.J., King P.W., National Renewable Energy Laboratory, US

We have examined changes in single-walled carbon nanotubes (SWNT) optical signals upon addition of recombinant [FeFe] hydrogenases from Clostridium acetobutylicum or Chlamydomonas reinhardtii. We found evidence that novel and stable charge-transfer complexes are formed only [...]

Pseudopotential theory of electronic excitations in semiconductor nanostructures

Franceschetti A., Troparevsky M.C., National Renewable Energy Laboratory, US

The calculation of the optical and electronic properties of semiconductor nanopstructures is still based for the most part on highly approximated, continuum-like models such as the effective-mass approximation. These models do not take into account [...]

The Inverse Band Structure Approach: Given the desired electronic property, find the atomic configuration

Zunger A., National Renewable Energy Laboratory, US

Modern crystal-growth techniques, such as molecular beam epitaxy or metal-organic chemical-vapour deposition, are capable of producing prescribed crystal structures, sometimes even in defiance of equilibrium, bulk thermodynamics. These techniques open up the possibility of exploring [...]

The Inverse Band Structure Approach: Given the desired electronic property, find the atomic configuration

Zunger A., National Renewable Energy Laboratory, US

Modern crystal-growth techniques, such as molecular beam epitaxy or metal-organic chemical-vapour deposition, are capable of producing prescribed crystal structures, sometimes even in defiance of equilibrium, bulk thermodynamics. These techniques open up the possibility of exploring [...]