Richard H. Friend

Efficient photodiodes from interpenetrating polymer networks

The photovoltaic response in poly(p-phenylene vinylene) thin-film devices

We report measurements of the photovoltaic effect in diode structures formed with thin films (100 nm) of the conjugated polymer poly(p-phenylene vinylene), PPV, sandwiched betwe...

Bright light-emitting diodes based on organometal halide perovskite

High Photoluminescence Efficiency and Optically Pumped Lasing in Solution-Processed Mixed Halide Perovskite Semiconductors

The study of the photophysical properties of organic-metallic lead halide perovskites, which demonstrate excellent photovoltaic performance in devices with electron- and hole-ac...

Electroluminescence in conjugated polymers

Efficiency Enhancements in Solid-State Hybrid Solar Cells via Reduced Charge Recombination and Increased Light Capture

We compare a series of molecular sensitizers in dye-sensitized solar cells containing the organic hole transporter 2,2',7,7'-tetrakis(N,N-di-p-methoxypheny-amine)-9,9'-spirobifl...

The Origin of Collected Charge and Open‐Circuit Voltage in Blended Polyfluorene Photovoltaic Devices

Polymer blend photovoltaic devices (see Figure) are investigated and the characteristic electron and hole lengths estimated. It is found that for a polymer film exhibiting fine-...

Spin-dependent exciton formation in π-conjugated compounds