Benjamin J. Schwartz

TL;DR: Evidence that interchain electronic species do form in conjugated polymer films is reviewed and their number and chemical nature depend on processing conditions; the chain conformation, degree of interchain contact, and rate of energy transfer can be controlled by factors such as choice of solvent, polymer concentration, thermal annealing, presence of electrically charged side groups, and encapsulation of the polymer chains in mesoporous silica.

TL;DR: The presence of interchain species in the photophysics of conjugated polymer films has been the subject of a great deal of controversy as discussed by the authors, and much of the controversy can be resolved by noting that the polymer samples in different studies had different side groups or were prepared in different ways and thus have different degrees of inter-chain interaction.

TL;DR: Gain narrowing in optically pumped thin films, both neat and undiluted, of luminescent conjugated polymers with different molecular structures was demonstrated in this paper, showing that the polymers studied have large cross sections for stimulated emission, that population inversion can be achieved at low pump energies, and that the emitted photons travel distances greater than the gain length within the gain medium.

TL;DR: In this article, it was shown that the degree of interchain interactions and morphology in conjugated polymer films can be controlled by altering the chain conformation in the solution from which the film is cast.

TL;DR: The different intrachain and interchain energy transfer time scales explain the behavior of conjugated polymers in a range of solution environments and provide insights for optimizing nanostructured materials for use in optoelectronic devices.