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Addressing the Recalcitrance of Cellulose Degradation through Cellulase Discovery, Nano-scale Elucidation of Molecular Mechanisms, and Kinetic Modeling

Description: This research project was designed to play a vital role in the development of low cost sugars from cellulosic biomass and contributing to the national effort to displace fossil fuel usage in the USA transportation sector. The goal was to expand the portfolio of cell wall degrading enzymes through innovative research at the nano-scale level, prospecting for novel cellulases and building a kinetic framework for the development of more effective enzymatic conversion processes. More precisely, the … more
Date: June 13, 2011
Creator: Walker, Larry P., Bergstrom, Gary; Corgie, Stephane; Craighead, Harold; Gibson, Donna & Wilson, David
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

First Principles Modeling of Phonon Heat Conduction in Nanoscale Crystalline Structures

Description: The inability to remove heat efficiently is currently one of the stumbling blocks toward further miniaturization and advancement of electronic, optoelectronic, and micro-electro-mechanical devices. In order to formulate better heat removal strategies and designs, it is first necessary to understand the fundamental mechanisms of heat transport in semiconductor thin films. Modeling techniques, based on first principles, can play the crucial role of filling gaps in our understanding by revealing i… more
Date: June 30, 2010
Creator: Mazumder, Sandip & Li, Ju
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DOE Office of Science Funded Basic Research at NREL that Impacts Photovoltaic Technologies

Description: The DOE Office of Science, Basic Energy Sciences, supports a number of basic research projects in materials, chemicals, and biosciences at the National Renewable Energy Laboratory (NREL) that impact several renewable energy technologies, including photovoltaics (PV). The goal of the Material Sciences projects is to study the structural, optical, electrical, and defect properties of semiconductors and related materials using state-of-the-art experimental and theoretical techniques. Specific proj… more
Date: January 1, 2005
Creator: Deb, S. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

ScanningTunneling Luminescence of Grain Boundaries in Cu(In,Ga)Se2

Description: At the Laboratory, photon emission in semiconductors has been mapped in the nanoscale using scanning tunneling microscopy (STM). In this Solar Program Review Meeting, we report on the latest results obtained in Cu(In,Ga)Se2 (CIGS) thin films by this adapted STM. Scanning tunneling luminescence (STL) spectroscopy suggests that photons are emitted near the surface of CIGS. STL is excited either by (1) diffusion of tunneling electrons and subsequent recombination with available holes in CIGS or (2… more
Date: January 1, 2005
Creator: Romero, M. J.; Jiang, C.-S.; Al-Jassim, M. M. & Noufi, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nano-scale Optical Spectroscopy of PV Materials: Preprint

Description: Presented at the 2001 NCPV Program Review Meeting: Micro-PL, solid immersion lens microscopy, and near-field microscopy characterized the low-temperature PL of PV materials and devices with sub-micron spatial resolution. A variety of novel high-spatial resolution techniques, including micro-PL, solid immersion lens microscopy and near-field microscopy have been used to characterize the low-temperature photoluminescence of photovoltaic materials and devices with sub-micron spatial resolution. Th… more
Date: October 1, 2001
Creator: Smith, S.; Dhere, R.; Ramanathan, K. & Mascarenhas, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nanoscale Materials Applications: Thermoelectrical, Biological, and Optical Applications with Nanomanipulation Technology

Description: In a sub-wavelength scale, even approaching to the atomic scale, nanoscale physics shows various novel phenomena. Since it has been named, nanoscience and nanotechnology has been employed to explore and exploit this small scale world. For example, with various functionalized features, nanowire (NW) has been making its leading position in the researches of physics, chemistry, biology, and engineering as a miniaturized building block. Its individual characteristic shows superior and unique featur… more
Date: August 2011
Creator: Lee, Kyung-Min
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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