SBIR Phase I: High-efficiency and Stable Nanocomposite Light Emitting Diode

Award Information
Agency: National Science Foundation
Branch: N/A
Contract: 0711190
Agency Tracking Number: 0711190
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2006
Solicitation Topic Code: EL
Solicitation Number: NSF 06-598
Small Business Information
401 S Cedar Street, UAMS/BioVentures, Little Rock, AR, 72205
DUNS: 155828861
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Yunjun Wang
 (479) 799-3368
Business Contact
 Yunjun Wang
Title: DPhil
Phone: (479) 799-3368
Research Institution
This Small Business Innovation Research (SBIR) Phase I project aims to develop a new type of bright and stable nanophosphors for light emitting diode (LED) applications. Polymeric LED (PLED) has the superior imaging performance, compact, lightweight properties, and versatile and cost-effective solution processability; and thus is setting to replace liquid crystal displays (LCDs) and cathode ray tubes (CRTs) in many existing applications, as well as open up exciting possibilities for new product forms and applications. However, PLED has the drawback of limited emitting colors, broad and red tailed emission peak, low efficiency, and short lifetime. In Phase I, hybrid PLED device will be assembled and tested by embedding the nanophosphors into wide band-gap phosphorescent polymer. The operation of the device will largely rely on the energy transfer from host polymer to the guest nanophosphors. Taking the advantages of the high brightness and high stability of the nanophosphors to be developed in this SBIR project, the hybrid PLED devices would have low-cost and the high performance (i.e. efficiency, lifetime, and color quality) that would meet or even exceed the standards as required for commercialization. If successful some of the major impacts for the outcome of this project will be (1) the enabling of more extensive use of PLEDs in the electronic devices such as portable computers, cellular telephone, hand-held biosensors, and large area displaying screen, (2) engendering entirely new display products, for example, the transparent LED (TLED), which could be used in windshield displays, heads-up instrumentation for aircraft and automobiles, office windows doubled as display screen, (3) fabrication of high efficiency white PLED as lighting resources to replace the mercury-based lighting devices, and (4) generation of a new type of nanophosphors materials.

* Information listed above is at the time of submission. *

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