Ultrafast Charge Dynamics in Dilute-Donor versus Highly Intermixed TAPC:C<sub>60</sub> Organic Solar Cell Blends
Gareth John Moore, Martina Causa’, Josué F. Martínez Hardigree, Safakath Karuthedath, Iván Ramírez, Anna Jungbluth, Frédéric Laquai, Moritz Riede, Natalie Banerji
Abstract
clusters via their electro-absorption, demonstrating an energetic gradient that assists free charge generation. Third, we identify a fast (<1 ns) recombination channel, whereby free electrons recombine with trapped holes on isolated TAPC molecules. This can harm the performance of dilute solar cells, unless the electrons are rapidly extracted in efficient devices.
Topics & Concepts
Organic solar cellUltrafast laser spectroscopyMaterials scienceExcitonFullereneIntermolecular forceChemical physicsPhotocurrentSolar cellAbsorption (acoustics)Charge carrierOptoelectronicsSpectroscopyChemistryMoleculePhysicsOrganic chemistryCondensed matter physicsPolymerQuantum mechanicsComposite materialOrganic Electronics and PhotovoltaicsConducting polymers and applicationsFullerene Chemistry and Applications