Ultrafast charge separation

Polymers are an exciting prospect for use in solar cells because their manufacture is cheap, easily processed at low temperatures and can be scaled up for industrial production. A key drawback is their relatively low power ...

Colloidal quantum dots make LEDs shine bright in the infrared

The ideal optoelectronic semiconductor material would be a strong light emitter and an efficient charge conductor to allow for electrical injection in devices. These two conditions, when met, can lead to highly efficient ...

Sulfonium cations for quasi-2D perovskite solar cells

Ruddlesden-Popper-type (RP) quasi-two-dimensional (2D) perovskite solar cells (PSCs) have attracted extensive attention due to their unique photovoltaic properties and excellent device stability. Due to disordered crystallization, ...

The promise of deep grooves

A manufacturing technique that could help the semiconductor industry make more powerful computer chips began in the humblest of places—at a lunch table at the U.S. Department of Energy's (DOE) Argonne National Laboratory.

Ultra-thin transparent silver films for solar cells

A new fabrication process for transparent ultra-thin silver films has been developed by researchers at Ruhr-Universität Bochum and the University of Wuppertal. The material may help build highly efficient solar cells and ...

Molecular tweak improves organic solar cell performance

A molecular tweak has improved organic solar cell performance, bringing us closer to cheaper, efficient, and more easily manufactured photovoltaics. The new design approach, targeting the molecular backbone of the cell's ...

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