Award Data

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 regarding the use of the material in solid state lights. This project will develop alternative novel p ...

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 and phosphor materials. Recently, a new class of phosphors were optically designed to maximize LED ...

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 luminescent structures to greatly increase the light-extraction efficiency from standard light-emitting-diode ...

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 lifetime, excellent reliability, low power consumption, light weight, small size and excellent resistanc ...

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 lifetime, excellent reliability, low power consumption, light weight, small size and excellent resistanc ...

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 used almost universally on such detector systems. ZnTe:O will also have a faster time response than ...

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 eventually fluorescent lighting. However, current high brightness solid state devices suffer from reduced ...

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 increase in brightness will solve a major problem in the design of these detector systems. Simply sta ...

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 could have a significant impact on lamp efficiency and design. This project will develop Concentrica ...

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 on lamp efficiency and design. This project will develop technology to increase the efficiency of u ...