In this research theme, we aim to: (i) characterize, experimentally and theoretically, coherent phenomena that control production, migration, and delivery of excitons, polarons, trions, and spins; (ii) elucidate designs and environment factors that direct coherent, lossless flow of energy through the nanostructures; (iii) pioneer, using theory and experiment, novel strategies that exploit coherence effects to enable driving the simultaneous delivery two charges following the absorption of a single photon.