Journal Article 6 bulk heterojunction solar cells Research Support, Non-U.S. Gov't 4 Research Support, U.S. Gov't, Non-P.H.S. 2 polymers 2 power conversion efficiency 2 small molecules 2 mehr ... Fullerenes 1 Organic Chemicals 1 PBDTTPD 1 PCBM 1 PV-driven water splitting 1 Research Support, N.I.H., Extramural 1 Thiadiazoles 1 Thiophenes 1 additive-free solar cells 1 asymmetric copolymers 1 donor-acceptor copolymers 1 energy transfer 1 flash DSC 1 fullerenes 1 homo-tandem 1 indenothiophenes 1 multijunction devices 1 non-fullerene acceptors 1 organic photovoltaics 1 organic semiconductors 1 perylene diimide 1 solvent additives 1 transient spectroscopy 1 weniger ...