GaN	Gallium nitride
QW	Quantum well
Stp	Streptavidin
FBR	Ferritin-Biotin-Rhodamine complex
SPB	Silane-PEG-Biotin
APTES	3-aminopropyl triethoxysilane
p-GaN	p-type GaN
n-GaN	n-type GaN
u-GaN	un-doped GaN
u-QW	un-doped GaN-GaInN-GaN quantum well structure
p-QW	GaN-GaInN-GaN quantum well structure with Mg-doped cap layer
sccm	standard cubic centimeters per minute
a.u.	arbitrary units
XRR	X-ray Reflectivity
XPS	X-ray Photoelectron Spectroscopy
MALDI-ToF	Matrix-Assisted Laser Desorption/Ionization Time-of-Flight
ToF-SIMS	Time-of-Flight Secondary Ion Mass Spectrometry
AFM	Atomic force microscopy