Optical and Current Noise of GaN Based Light Emitting Diodes

Author

Sawyer, S. ; Rumyantsev, S.L. ; Pala, N. ; Shur, M.S. ; Bilenko, Yu ; Zhang, J.P. ; Hu, X. ; Lunev, A. ; Deng, J. ; Gaska, R.

Author_Institution

Dept. of Electr., Comput., & Syst., Rensselaer Polytech. Inst., Troy, NY

fYear

2005

fDate

7-9 Dec. 2005

Firstpage

89

Lastpage

90

Abstract

Ultraviolet (UV) light emitting diodes (LEDs) are expected to find applications for solid-state lighting, water and air purification, bio-agent detection, and biological fluorescence experiments. For identifying miniscule amounts of hazardous biological pathogens and for the detection of fluorescence from protein molecules excited with the UV light (200-300nm) the light source must exhibit low noise and high stability over tens of minutes. The authors report on the low frequency fluctuations of the current and light intensity of SET UVTOPreg LEDs (fabricated by SET, Inc.) with wavelengths ranging from 265nm to 340nm

Keywords

III-V semiconductors; gallium compounds; light emitting diodes; light sources; optical noise; wide band gap semiconductors; 200 to 300 nm; 265 to 340 nm; GaN; SET UVTOP LED; UV light emitting diodes; UV light source; air purification; bio-agent detection; biological fluorescence; current noise; fluorescence detection; hazardous biological pathogens; optical noise; protein molecules; solid-state lighting; water purification; Biomedical optical imaging; Fluorescence; Gallium nitride; Light emitting diodes; Optical noise; Pathogens; Proteins; Purification; Solid state lighting; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Device Research Symposium, 2005 International

Conference_Location

Bethesda, MD

Print_ISBN

1-4244-0083-X

Type

conf

DOI

10.1109/ISDRS.2005.1595992

Filename

1595992