Fabrication and characterization of ZnO film for hydrocarbon gas sensing by successive ionic layer adsorption reaction (SILAR

Date

4-2014

Degree

Bachelor of Science in Applied Physics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Emmanuel A. Florido

Abstract

ZnO film was fabricated using successive ionic layer adsorption reaction (SILAR) with varying concentrations of 0.1M, 0.15M and 0.2M and varying number of dippings of 50, 100, 150, 200 using an automated dipping machine. Scanning Electron Microscopy (SEM) revealed a uniform _lm for the sample grown using 0.1M concentration of sodium zincate bath and 200 dippings. With these parameters, Pd was used to sensitize the film. IV curve shows that the resistivity of the film decreases when mixed with Pd. Films with and without Pd was exposed to the gas. Both responded to the gas but ZnO film with Pd (136.23%) shows higher sensitivity than ZnO without Pd (58.67%).

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2014 P51 /S65

Document Type

Thesis

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