In recent years, researchers have used selective excitation of vibrational modes to alter an array of photophysical dynamics. Our group demonstrated the use of double pulse excitation FSRS, where we shape the photoexcitation pulse to selectively amplify coherences in individual phonon modes and ascertain their function. This method identified the role of phonon modes in mediating a photoinduced spin-Peierls phase transition in potassium tetracyanoquinodimethane crystals and revealed a phonon mode in rubrene crystal derivatives that suppresses singlet fission pathways for the first time. Selective excitation techniques provide new pathways to control dynamics using optical pulse shaping. Recent computational studies reveal that targeted excitation of phonon modes in graphene can both increase and decrease thermal conductivity. Previous work in pentacene/C60 photoresistors used a selective infrared excitation of high frequency intramolecular vibrations to modulate charge transport dynamics. Researchers found that vibrations along pentacene's long axis are particularly sensitive to altering the intermolecular electronic coupling and therefore increase the charge transport rate. Thus, we expect that select phonon modes would also contribute to the modulation of intermolecular coupling and therefore have a significant impact on exciton transport dynamics.