Tiziano Agostinelli

TL;DR: This paper proposes a morphology evolution that consists of an initial crystallization of P3HT chains, followed by diffusion of PCBM molecules to nucleation sites, at which aggregates ofPCBM then grow.

TL;DR: In this article, drift-diffusion simulations with experiments are compared to explore the influence and the detection limit of doping in situations where device thickness and doping density are too low for the depletion approximation to be valid, and the results of the simulations suggest that the typically measured values on the order of 5 × 1016 cm-3 for doping density in thin films of 100 nm or lower may not be reliably determined from capacitance measurements and could originate from a completely intrinsic active layer.

TL;DR: Doping is most likely the dominant influence on the space charge and has an important effect on the thickness dependence of performance on Si-PCPDTBT solar cells.

TL;DR: In this paper, the evolution of microstructure involves two important time windows: i) a first one of about 5 minutes duration wherein crystallization of the polymer correlates with a major increase of photocurrent; ii) a second window of about 30 minutes during which the aggregation of PCBM continues, accompanied by an increase in the fill factor.

TL;DR: A real-time analysis of P3HT/PCBM films during thermal annealing is reported in this paper, detailing the temporal variation of crystallization, disorder, and orientational spread during the process.