The electron density of states and recombination kinetics of bulk heterojunction solar cells have been determined by means of low-frequency noise spectroscopy at room temperature and in dark conditions. The observed differences in the disorder parameter and electron lifetime are attributed to a different film ordering of the active layer because of the influence of a solvent additive. Blends prepared with the reference solvent resulted in the lowest electron lifetime and density of states population, while blends prepared with the addition of a high boiling point solvent resulted in a more efficient charge carrier separation and a higher electron lifetime.
|Titolo:||Investigation of the solvent influence on polymer–fullerene solar cells by low frequency noise spectroscopy|
LANDI, GIOVANNI [Writing – Original Draft Preparation] (Corresponding)
BARONE, CARLO [Writing – Original Draft Preparation]
PAGANO, Sergio [Writing – Review & Editing]
NEITZERT, Heinrich Christoph [Data Curation]
|Data di pubblicazione:||2014|
|Appare nelle tipologie:||1.1.2 Articolo su rivista con ISSN|