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Energy

Alternative energy

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Displaying 301 - 325 of 706

In situ X-ray scattering studies of the influence of an additive on the formation of a low-bandgap bulk- heterojunction

February 21, 2017
Author(s)
Felicia A. Bokel, Lee J. Richter, Sebastian Engmann, Andrew Herzing, Brian A. Collins, Hyun W. Ro, Dean DeLongchamp
The evolution of the morphology of a high-efficiency, blade-coated, organic-photovoltaic (OPV) active layer containing the low band-gap polymer poly[(4,8-bis[5-(2-ethylhexyl)thiophene-2-yl]benzo[1,2-b:4,5-b']dithiophene)-2,6-diyl-alt-(4-(2-ethylhexanoyl)

Deconvoluting the Influences of 3D Structure on the Performance of Photoelectrodes for Solar-Driven Water Splitting

February 7, 2017
Author(s)
Daniel V. Esposito, Youngmin Lee, Heayoung Yoon, Paul M. Haney, Natalie Labrador, Thomas P. Moffat, A. A. Talin, Veronika A. Szalai
Abstract Three-dimensionally (3D) structured photoelectrodes offer a number of potential benefits for solar fuels production compared to conventional planar photoelectrodes, including decreased optical losses, higher surface area for catalysis, more facile

Toward Integrating Distributed Energy Resources and Storage Devices in the Smart Grid

February 1, 2017
Author(s)
Guobin Xu, Wei Yu, David W. Griffith, Nada T. Golmie, Paul Moulema
The smart grid, as one of typical applications supported by Internet of Things, denoted as a re-engineering and a modernization of the traditional power grid, aims to provide reliable, secure, and efficient energy transmission and distribution to consumers

Performance Data from the NIST Net-Zero Energy Residential Test Facility

January 17, 2017
Author(s)
William M. Healy, Arthur H. Fanney, Brian P. Dougherty, Lisa C. Ng, William V. Payne, Tania Ullah, Farhad Omar
Data were collected over two separate year-long test periods at the Net-Zero Energy Residential Test Facility, a laboratory that is designed to evaluate a variety of technologies and operational strategies that lead to energy efficient houses with

Structure and Order in Organic Semiconductors

January 17, 2017
Author(s)
Chad R. Snyder, Dean M. DeLongchamp, Ryan C. Nieuwendaal, Andrew A. Herzing
Several techniques for characterizing semiconducting polymer order on different length scales are presented, including (1) differential scanning calorimetry (DSC), (2) solid state nuclear magnetic resonance spectroscopy (NMR), (3) transmission electron

Spectral dependence of carrier lifetimes in silicon for photovoltaic applications

December 21, 2016
Author(s)
John F. Roller, Yu-Tai Li, Mario Dagenais, Behrang H. Hamadani
Charge carrier lifetimes in photovoltaic-grade silicon wafers were measured by a spectral-dependent, quasi-steady-state photoconductance technique. Narrow bandwidth LEDs were used to excite excess charge carriers within the material, and the effective

Multi-Component Fe-Ni Oxide Nanocatalysts for Oxygen Evolution and Methanol Oxidation Reactions under Alkaline Conditions

November 29, 2016
Author(s)
Stephanie L. Candelaria, Nicholas M. Bedford, Taylor J. Woehl, Nikki S. Rentz, Allison R. Showalter, Svitlana Pylypenko, Bruce A. Bunker, Sungsik Lee, Benjamin Reinhart, Yang Ren, S P. Ertem, E. B. Coughlin, Nicholas A. Sather, James L. Horan, Andrew M. Herring, Lauren F. Greenlee
The electrolysis of water for hydrogen generation and the electrochemical oxidation of alternative fuels such as methanol for alkaline fuel cells often relies on the use of precious metal catalysts. However, the scarcity and high cost of these precious
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