Aljameel, , Abdulaziz Ibraheem A
(2016)
Surface And Interface Phonon Polaritons Characteristics In InAIGaN Quaternary Alloys.
PhD thesis, Universiti Sains Malaysia.
Abstract
Dalam projek ini sifat-sifat optik dua set filem nitrida kuaternari telah dikaji
secara eksperimen dan teori. Set pertama ialah nitrida kuaternari InxAlyGa1-x-yN
dengan aluminum (Al) malar, y=0.06 dan pecahan mol indium (In) yang berubah
dalam julat 0 x 0.10, sementara set kedua dengan In malar, x=0.10, dan
komposisi Al yang berubah dalam julat 0 y 0.20. Dalam kajian ini pelbagai
peralatan pencirian tak sentuhan dan tak memusnahkan telah digunakan. Ini
merangkumi spektroskopi pantulan inframerah (IR) terkutub dan pantulan penuh
dilemahkan IR terkutub (ATR) bagi pencirian optik. Dalam kategori pertama projek
ini, ciri spektra pantulan inframerah (IR) terkutub dan ciri optik InxAlyGa1-x-yN telah
dikaji.
In this project the optical properties of two sets of quaternary nitride films
have been investigated experimentally and theoretically. The first set is the
quaternary nitride InxAlyGa1-x-yN with constant aluminum (Al), y=0.06 and varied
indium (In) mole fraction ranging from 0 ≤ x ≤ 0.10, while the second set is with
constant In, x = 0.10, and variable Al composition ranging from 0 ≤ y ≤ 0.20. In this
study various non-contact and non-destructive characterization tools were used.
These include polarized infrared (IR) reflectance and polarized IR attenuated total
reflection (ATR) spectroscopy for optical characterization. In the first category of
this work the features of the polarized IR reflectance spectra and the optical
characteristics of InxAlyGa1-x-yN were investigated.
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