Main Page
Deanship
The Dean
Dean's Word
Curriculum Vitae
Contact the Dean
Vision and Mission
Organizational Structure
Vice- Deanship
Vice- Dean
KAU Graduate Studies
Research Services & Courses
Research Services Unit
Important Research for Society
Deanship's Services
FAQs
Research
Staff Directory
Files
Favorite Websites
Deanship Access Map
Graduate Studies Awards
Deanship's Staff
Staff Directory
Files
Researches
Contact us
عربي
English
About
Admission
Academic
Research and Innovations
University Life
E-Services
Search
Deanship of Graduate Studies
Document Details
Document Type
:
Thesis
Document Title
:
Manufacturing of nanocrystalline metal oxide thin film for gas sensing application
تصنيع أغشية أكاسيد المعادن النانومترية في تطبيقات الإحساس بالغازات
Subject
:
physics department
Document Language
:
Arabic
Abstract
:
Wide band gap metal oxide gas sensor devices have found prevalent application. These sensor devices are being substantially monopolized for the automotive and municipal applications to control the air ventilation flutters or to monitor natural gas seepages. These implementations entail metal oxides with low price, light weight, small extent, un-convoluted, low consuming power and high sensibility to a spacious assortment of gases. In this thesis, ZnO thin films were synthesized via sol-gel spin coating technique. The influence of film thickness, annealing temperature and roughness on the sensitivity of ZnO films were studied. The influence of various gases such as (H2S, NH3, H2 and CH3OH) on the electrical traits of ZnO film has been scrutinized. The results depicted that ZnO thin film has high sensitivity for H2S gas at thickness of 186 nm when annealed at 650oC. The sensor showed fast response time, high stability and reproducibility. The sensitivity as a function of gas concentration showed a linear regression with correlation factor R2=0.99. According to the obtained results one can conclude that low cost, high sensitivity, fast response and relative simplicity ZnO sensor device were obtained for detection of H2S gas at ambient temperature.
Supervisor
:
Dr.Waleed Elsayed mahmoud
Thesis Type
:
Master Thesis
Publishing Year
:
1434 AH
2013 AD
Co-Supervisor
:
Dr . Saleh Hedihed Salman Al-Heniti
Added Date
:
Saturday, March 16, 2013
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
صالح أحمد الغامدي
Al-ghamdi, Saleh Ahmad
Researcher
Master
Files
File Name
Type
Description
35225.pdf
pdf
Back To Researches Page