Award Data

In this program, we will develop a breakthrough technology that will enable wafer-scale epitaxial lift-off (ELO) of GaN power device heterostructures from low-dislocation-density bulk GaN substrates. This technology will be used to provide a low-cost vertical junction field effect transistors (VJFETs) with high breakdown voltage (greater than 1,200 V) and high current capability (greater than 100 ...

GaN-based devices are the basis of a variety of modern electronics applications, especially in optoelectronics and high-frequency / high-power electronics. These devices are based on epitaxial films grown on single-crystal wafers. The single-crystal wafer substrates are limiting because of their size, expense, mechanical properties and availability. If one could make GaN-based devices over large a ...

A team at EP Purification has performed research for the development and commercialization of low-cost microchannel plasma reactor modules capable of efficiently producing ozone for water treatment and other environmental applications in a slim form factor and size. The conservation of water resources for human consumption is a growing national priority. Ozone is a unique purification agent as it ...

Plastics and petroleum-based foams are a conventional solution for the material needs of many industries. Today these non-biodegradable, fossil fuel derived products compose 13 percent of all municipal solid waste streams, as opposed to 1 percent in 1960. This waste stream is associated with a number of environmental concerns, including greenhouse gas generation from incineration, as well as land ...

Environmental studies have proven that ammonia (NH3) presents a significant environmental hazard; therefore, accurate monitoring and control of NH3 concentration is required inorder to maintain appropriate air quality levels. Atmospheric ammonia contributes directly and indirectly to acidification, eutrophication, human health and climate change. For air pollution monitoring, the ammonia concentr ...

Organophosphates cannot currently be analyzed in the field using existing technologies, due to insufficient sensitivity of currently fielded instruments. This inability reduces the number of analyses that a government agency can perform on a water supply to ensure its safety to humans and the environment. The objective of this Phase I effort is to design a novel strategy that preconcentrates org ...

Current anaerobic digester systems are designed for capturing energy from waste from large heads of farm animals. GHD, Inc., a leading manufacturer of anaerobic digesters, has stated that a minimum dairy heard size for economical implementation of a biogas system as 800 cows. These require turbine or diesel generator sets of 100 Kilowatt size and larger, a limiting factor in economically scaling ...

New pollution control technologies are needed for small oil- and coal-fired industrial boiler located throughout the United States. Although each unit is relatively small, the vast number of these units creates a significant air pollution source, especially in heavily populated areas, that emits particulate matter (PM) and other air pollutants. In the EPA boiler MACT regulations, it was estimate ...

There is growing concern about the particulate pollution emitted by outdoor wood-fired boilers (0WBs) and their related health effects. These systems are also referred to as outdoor wood-fired hydronic heaters or outdoor wood-fired furnaces. There are currently over 500,000 OWBs installed, primarily in the northern US. During the Phase I SBIR project, a catalytic combustor system that can be retro ...

One of the program areas of interest to the U.S. Environmental Protection Agency (EPA) is the development of rapid, non-invasive monitors to detect exposure to toxic air pollutants at trace (ppt) levels. Of the 356 chemicals listed on the Chemical Emergency Preparedness and Prevention Office¿s List of Extremely Hazardous Substances (Section 302 of the Emergency Planning and Community Right-To-Kn ...