TY - JOUR T1 - Role of Intermolecular Coupling in the Photophysics of Disordered Organic Semiconductors: Aggregate Emission in Regioregular Polythiophene JO - Physical Review Letters PY - 2007/05/18 AU - Clark J AU - Silva C AU - Friend RH AU - Spano FC ED - DO - DOI: 10.1103/physrevlett.98.206406 PB - American Physical Society (APS) VL - 98 IS - 20 Y2 - 2025/05/23 ER -