SEMICONDUCTOR DEVICES: SEMICONDUCTOR DEVICES Physical Properties of Gallium Arsenide (GaAs) Introduction to Gallium Arsenide: Introduction to Gallium Arsenide
Gallium is a chemical element
that has the symbol Ga and
atomic number 31
Arsenic is a chemical element
that has the symbol As and atomic number 33.
Is a combination of chemicals Gallium which has the symbol Ga (atomic number 31) with chemical Arsenic that has the symbol As (atomic number 33).
Physical properties : Physical properties Structure of GaAs: Structure of GaAs Crystal structure of GaAs similar to Zinc blende where cubic zinc structure in which the sulfide ions form a face-centered cubic array and the zinc ions fill one-half of the tetrahedral holes.
Crystals of gallium arsenide are cubic in shape and dark grey in colour. Physical Properties of GaAs: Physical Properties of GaAs Ionization Energy: Ionization Energy Group II element can enter the lattice as substitutional impurities, replacing the group III element to become acceptor impurities.
Group VI element can enter the lattice substitutionally, replace the group V element to become donor impurities.
The ionization energy for the donors in GaAs are smaller than the ionization energy for the acceptor.
This is because of the smaller effective mass of the electron compare to that of the hole. Impurity Ionization Energy in GaAs: Impurity Ionization Energy in GaAs Melting point of GaAs: Melting point of GaAs Electrical Conductivity: Electrical Conductivity Credits: Credits
HO JIA HUN 138255
TIOH PEE LING 138691
THAM TZI LEN 139239
CHAY KWOK MAN 138105
LEE SOON LI 130617
HAN SHIN YING 129980
AZILAH AMRAN 132333
IYLIA SYAZANA OTHMAN 131109
NOR SYAHIDA MOHIDIN 136679