Effect of varying mass ratio of ZnO/CuO on sensing of H2S

Date

10-2011

Degree

Bachelor of Science in Applied Physics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Lou Serafin M. Lozada

Co-adviser

Juzzel Ian B. Zerrudo

Abstract

Electrophoretic-deposited ZnO/CuO film was successfully fabricated. Three different mass ratios of ZnO/CuO were deposited on pencil graphite at 100V applied voltage for 1-minute deposition time. Response of ZnO/CuO film to hydrogen sulfide (H2S) gas was investigated under room temperature and was found to be affected by the surface morphology. The XRD spectra showed appearance of new peak after exposure to H2S which corresponds to CuS. SEM images showed ZnO/CuO grains with diameter ranging from 0.29pm to 0.411.1m. The electrophoretic-deposited ZnO/CuO showed a good minimum and maximum gas response of 4.52169% and 21.39676%, respectively. ZnO/CuO with 2.0:0.50 mass ratio demonstrated the highest sensitivity response while the lowest response was observed at 2.0:0.10 mass ratio. Keywords: Structure of nanocrystals and nanoparticles (61.46.DO; 11-VI semiconductors (81.05.Dz), Electrodeposition (81.15.Pq)

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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