Green Light Effect on CuO Nanowire Thin Film Sensing at Room Temperature

PIERPAULI KARINA; JUAN BONAPARTE; LELL JULIÁN; COLLET LACOSTE, JUAN; GABRIELA LEYVA; ORTIZ, SALVADOR; PATRICIA M. PERILLO; DANIEL F. RODRIGUEZ; LAMAGNA ALBERTO; CARLOS A. RINALDI

Nuremberg

Congreso; IMCS 2012 - The 14th International Meeting on Chemical Sensors; 2012

University of Bayreuth (Germany)

This paper presents the fabrication and characterization of a sensor based on a nanostructured CuO thin film on a silicon substrate. We evaluated the sensitivity and selectivity of the sensor to ethyl or isopropyl alcohol at room temperature in the absence and presence of green light. Measurements ofsensor responses on both light conditions show repetitive changes in selectivity, presumably based on sustancial changes in chemical interactions of analyte with excited nano-structured CuO thin film.