2017 FINAL PAPEr.docx - Faye D Espalmado Zhaevi Isabel S Mago Martina Joanna A Manuel May 2017 Philippine Science High School Bicol Region Campus

Faye D. Espalmado Zhaevi Isabel S. Mago Martina Joanna A. Manuel May 2017 Synthesis of Graphene – Cuprous Oxide Conductive Film Via Spray Pyrolysis Philippine Science High School Bicol Region Campus

Submitted to the Faculty of the Philippine Science High School – Bicol Region Campus in partial fulfillment of the requirements for Research 2 May 2017 Synthesis of Graphene – Cuprous Oxide Conductive Film Via Spray Pyrolysis by Faye D. Espalmado Zhaevi Isabel S. Mago Martina Joanna A. Manuel

ABSTRACT This study was conducted to determine the best weight ratio in producing graphene- cuprous oxide conductive film using nebulized spray pyrolysis method to deposit the material onto the substrate. The general objective of the study was to synthesize a conductive film with different weight concentration ratios of graphene oxide (GO) to copper acetate (Cu(Ac) 2 ) via spray pyrolysis. To be specific, the study aimed to identify the best concentration ratio for GO: Cu(Ac) 2 in terms of the resistance and absorbance of the deposited film and deposit the G-Cu 2 O solution using a modified automated nebulizer spray pyrolysis. The ratios are 3:5 or 60mg:100mg, 5:3 or 100mg:60mg, and 1:1 or 80mg:80mg respectively. There will be two trials for each weight ratio, and three replicates for each trial, resulting to a total of 18 samples. The resulting graphene-cuprous oxide solution will be deposited by an automated nebulizer system on glass substrates cut out from microscope slides while being heated at 200 degrees Celsius. The fabricated films were subjected to resistivity test. One-way ANOVA was used to determine the correlation of the different weight ratios with the resistance of the samples were tested. The graphite oxide-copper acetate weight ratio which produced the best characteristics in terms of conductivity are the 3: 5 and 1:1 weight ratios. The fabricated conductive films via spray pyrolysis could be applied to solar cells, capacitors, anode and cathode materials, other semiconductors, or a new material from graphene and metal oxide composites. However, the application of the deposited thin film as

a transparent conducting oxide for solar panels is less feasible since solar cells rely on transparency to maximize optical transmittance.

APPROVAL SHEET This research work entitled, “ Synthesis of Graphene – Cuprous Oxide Thin Film Via Spray Pyrolysis ” by Faye D. Espalmado, Zhaevi Isabel S. Mago, and Martina Joanna A. Abante, presented to the Faculty of the Philippine Science High School – Bicol Region Campus in partial fulfillment of the requirements in Research 2, is hereby accepted. RUBY JANE S. NAVARRO Research Adviser ______________________________________ _ FERLY J. LOVETE Research Teacher ______________________________________ _ MARK ANTHONY B. PELAEZ Research Teacher ______________________________________ _ FELY B. BUERA Curriculum Instructor Services Division Chief ______________________________________ _ ELSIE G. FERRER Director III i

ACKNOWLEDGEMENTS We would never have been able to finish our research without the guidance of our research advisers and research teachers, cooperation of the laboratory personnel, help from friends, and support from our families and God.