USA flag logo/image

An Official Website of the United States Government

High Efficiency Multiple Wavelength Upconverting Nanophosphors

Award Information

Department of Energy
Award ID:
Program Year/Program:
2009 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Boston Applied Technologies, Inc.
6F Gill Street Woburn, MA 01801-1721
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2009
Title: High Efficiency Multiple Wavelength Upconverting Nanophosphors
Agency: DOE
Contract: DE-FG02-09ER85295
Award Amount: $100,000.00


Although fluorescent lamps (FLs) convert more input power to visible light than incandescent lamps, even the best of today┬┐s T-8 FLs convert only about 28% of consumed power into visible radiation. This inefficiency is partially attributed to unwanted infrared emissions (~37%). Therefore, one of the key research efforts is to develop highly efficient up-converting phosphors to collect those wasted IR emissions and convert their radiation into the visible range. This project will develop monodispersed and surface-passivated rare-earth-doped up-converting nanophosphors through a wet chemical process, which has been demonstrated to be cost-effective and reliable in the production of nanocrystals. This approach should be especially favorable for increasing the doping concentration threshold, which is essential for the enhancement of up-conversion efficiency. Commercial Applications and other Benefits as described by the awardee: The up converting phosphors should find use in fluorescent and incandescent lamp applications, not only increasing lamp efficiency and efficacy but also reducing the usage of harmful mercury. Highly-efficient up-converting nanophosphors also could be applied to LEDs for solid-state lighting and to solar energy applications because the solar spectrum has a significant IR component.

Principal Investigator:

Xiaomei Guo

Business Contact:

Yingyin Zou
Small Business Information at Submission:

Boston Applied Technologies, Incorporated
6F Gill Street Woburn, MA 01801

EIN/Tax ID: 510414999
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No