15mer	P3HT chain containing 15 monomers
CA	Aromatic Carbon
CT	Aliphatic Carbon
$ϵ$	Energy Parameter
${\epsilon }_s$	Solvent Quality
GIXS	Grazing Incident X-ray Scattering
GPU	Graphical Processing Unit
m	Mass
MD	Molecular Dynamics
NVT	Canonical Ensemble (constant number of particles, colume, and temperature)
OPLS	Optimized Potentials for Liquid Simulations
OPLS-UA	Optimized Potentials for Liquid Simulations - United Atom
OPV	Organic Photovoltaic
P3HT	Poly(3-hexylthiophene)
PCE	Power Conversion Efficiency
$\psi$	Order Parameter
$\rho$	Density
RDF	Radial Distribution Function
S	Sulfur
${\sigma }_{LJ}$	Lennard–Jones van der Waals radius
t	Simulation Unit of Time
T	Temperature
TPS	Timesteps Per Second
UA	United-Atom