This Small Business Technology Transfer (STTR) Phase I project involves the development of photoluminescent phosphors and coating materials for ultraviolet light emitting diodes that will make possible a white light emitting diode having high color purity, efficiency and lifetime far exceeding those… More

72261S03-I Currently, only one type of phosphor (YAG-based) is available for converting light from a blue LED to white, thereby enabling solid state white light. However, the YAG-based phosphor has color deficiency in the red and blue-green, and, moreover, there are international patent issues… More

75849-Solid state lighting is rapidly gaining momentum as a highly energy-efficient replacement technology for incandescent, and eventually fluorescent, lighting. However, current solid state devices suffer from poor-light-extraction efficiencies. This project will develop new, low-cost… More

This Small Business Innovation Research (SBIR) Phase II project will develop novel graded-index (GIN) structures for blue/UV light emitting diodes (LEDs). Solidstate LEDs (SSLs) are among the most efficient converters of electrical energy into light and additionally have the advantages of long… More

79586S Solid state lighting (SSL) is rapidly gaining momentum as a highly energy efficient replacement technology for traditional lamps. However, current devices made with solid state light-emitting diodes (LEDs) still suffer from low efficiencies, partly due to an optical mismatch between the LED… More

This Small Business Innovation Research (SBIR) Phase II project will develop novel graded-index (GIN) structures for blue/UV light emitting diodes (LEDs). Solidstate LEDs (SSLs) are among the most efficient converters of electrical energy into light and additionally have the advantages of long… More

DESCRIPTION (provided by applicant): We propose to develop a new phosphor for X-ray detectors used in protein crystallography, which can be used both in the home laboratory and at synchrotron beamlines. The phosphor, ZnTe:O, will be at least 3 times brighter than the conventional Gd2O2S:Tb currently… More

The nature of electromagnetic launchers requires operation in a harsh environment due to the large electromagnetic field, electrical current, temperature, and mechanical stresses present during a shot. This environment can significantly reduce the lifetime of the rails and therefore limits the… More

This Phase I Small Business Innovation Research (SBIR) research project will develop novel high brightness solid-state Light Emitting Diodes (LED) using doped quantum dots. Solid state lighting is rapidly gaining momentum as a highly energy efficient replacement technology for incandescent and… More

DESCRIPTION (provided by applicant): We propose to continue development of a new, high-performance X-ray phosphor, based on zinc telluride (ZnTe), doped with oxygen. Currently, our phosphor is at least 3-fold brighter than present technology and further im provements are expected in Phase II. This… More

Fluorescent and incandescent lighting consumes more than 50% of the lighting energy budget. However, these technologies are relatively inefficient, losing approximately 37% and 85%, respectively, of their energy to IR, rather than visible, frequencies. Efficient IR-to-visible upconversion phosphors… More

Although fluorescent and incandescent lighting consumes >50% of the lighting energy budget, they are relatively inefficient, losing ~37% and 85%, respectively, of their energy to the IR. Thus, phosphors that could efficiently up-convert IR radiation to visible light would have a significant impact… More

DESCRIPTION (provided by applicant): A new class of high-performance X-ray phosphor screens will be developed based on nanocrystal quantum dots (QDs), with applications to protein crystallography, digital radiography and mammography applications, as well a s a host of other important imaging and… More

The nature of electromagnetic launchers requires operation in a harsh environment due to the large electromagnetic field, electrical current, temperature, and mechanical stresses present during a shot. This environment can significantly reduce the lifetime of the rails and therefore limits the… More

DESCRIPTION (provided by applicant): A new class of high-performance X-ray phosphor screens will be developed based on dot-in-a-rod core/shell nanorod (NR) structures embedded in transparent polymer matrices, with applications to protein crystallography, digital radiography and mammography, as well… More

In this phase I SBIR project, we propose to develop a new type of photo-catalyst nanowire structure for high yield CO2 reforming into fuels and useful chemicals by sunlight energy. Despite the published successes of TiO2 nanorods/nanotubes as photo-catalyst materials, such systems work primarily in… More