Final LDRD report : development of advanced UV light emitters and biological agent detection strategies.

Figiel, Jeffrey James ; Crawford, Mary Hagerott ; Banas, Michael Anthony ; Farrow, Darcie ; Armstrong, Andrew M. ; Serkland, Darwin Keith ; Allerman, Andrew Alan ; Schmitt, Randal L.

关键词: ULTRAVIOLET RADIATION;    LIGHT EMITTING DIODES;    SENSORS;    BIOLOGICAL MATERIALS;    RADIOACTIVE MATERIALS;    DETECTION;    FLUORESCENCE;    PERFORMANCE;    DESIGN;    ALUMINIUM NITRIDES;    GALLIUM NITRIDES;    LASERS Bi;   

DOI  :  10.2172/950095
RP-ID  :  SAND2007-7685
PID  :  OSTI ID: 950095
Others  :  TRN: US0901980

美国|英语

来源: SciTech Connect

【 摘 要 】

We present the results of a three year LDRD project which has focused on the development of novel, compact, ultraviolet solid-state sources and fluorescence-based sensing platforms that apply such devices to the sensing of biological and nuclear materials. We describe our development of 270-280 nm AlGaN-based semiconductor UV LEDs with performance suitable for evaluation in biosensor platforms as well as our development efforts towards the realization of a 340 nm AlGaN-based laser diode technology. We further review our sensor development efforts, including evaluation of the efficacy of using modulated LED excitation and phase sensitive detection techniques for fluorescence detection of bio molecules and uranyl-containing compounds.