Efficient hybrid solar cells from zinc oxide nanoparticles and a conjugated poly

2019-08-15 10:25:07

The cells PPV oxide MDMO

责任者: Beek, Waldo J.E.;Wienk, Martijn M.;Janssen, Rene A.J. 单位: Molecular Materials and Nanosystems, Departments of Chemical Engineering, Eindhoven University of Technology, NL-5600 MB Eindhoven, Netherlands 来源出处: Advanced Materials,2004,16(12):1009-1013 摘要: The synthesis of hybrid bulk-heterojunction solar cells from zinc oxide (ZnO) nanocrystalline (nc) particles and a conjugated polymer, poly[2-methoxy-5-(3 prime ,7 prime -dimethyloctyloxy)-1,4-phenylenevinylene ] (MDMO-PPV), was investigated. The cells exhibited an incident photon to current conversion efficiency up to 40%. The photoinduced charge separation of the MDMO-PPV:nc-ZnO mixture was analyzed using photoinduced absorption (PIA) spectroscopy. The kinetics of charge generation of the mixture was investigated with pump-probe spectroscopy by monitoring the intensity of low-density radical cation absorption band at 2200 nm (0.56 eV). Transmission electron microscopy (TEM) was used to analyze the morphology of the MDMO-PPV:ncZnO blend. 关键词: Solar cells;Zinc oxide;Nanostructured materials;Organic polymers;Photovoltaic cells;Electron mobility;Hydrolysis;Condensation;Electron energy levels;Quantum efficiency;Current density;Morphology;Charge transfer;Photoluminescence;Transmission electron microscopy;Absorption spectroscopy;Photoexcitation;Polymer organic solar cells;Nanoparticles;Charge-carrier formation