Voltage loss in polymer solar cells down to the dielectric constant

High dielectric constant polymer solar cells found to behave as efficiently as their inorganic counterparts.

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Speeding up the characterization of organic photovoltaics

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A new contactless and rapid light beam-induced current method can be used to identify defects in complex organic multilayer films.

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MIT researchers break QD solar cell efficiency record

Researcher displays a sample of the record-setting new solar cell on the MIT campus. Photo courtesy of Chia-Hao Chuang.

Rate of improvement of quantum dot devices is one of the most rapid seen for a solar technology.

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Atomically thin solar cells

Atomically Thin Solar Cells 01

Ultrathin layers made of tungsten and selenium may be used as flexible, semi-transparent solar cells.

The BOSCO Solar Cell: Double-Sided Collection and Bifacial Operation

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The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany has developed a new solar cell structure for crystalline silicon.

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Why are halide perovskites so good in solar cells?

A research group has uncovered the unique structural, electronic, optical, and defect properties of halide peroveskites.

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Tiny Step Edges, Big Step for Surface Science

Big Step for Surface Science

Experiments at the Vienna University of Technology can explain the behavior of electrons at tiny step edges on titanium oxide surface.

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Deuterium changes the electronic properties of organic solar cells

Conceptual drawing shows a flexible organic photovoltaic made from an acceptor of PCBM (buckyball with earth) and the donor of deuterated conducting polymer. The polymer blend in the device (bottom) will harvest the sunlight to generate electrical power. (carbon:blue; sulfur: yellow; hydrogen: white; deuterium: purple). Image: Christopher Rouleau, CNMS.

Multidisciplinary ORNL team discovers unexpected effect of heavy hydrogen in organic solar cells.

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Cu(In,Ga)Se2 outperforms multicrystalline silicon

Compositional investigation of potassium doped Cu(In,Ga)Se2 solar cells with efficiencies up to 20.8%

Cu(In,Ga)Se2 (CIGS) thin-film solar cells have now reached a high efficiency level with a new record efficiency of 20.8 %.

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Useful Uncertainty Causes Ultrafast Charge Transfer in Bulk Heterojunction Solar Cells

Solar cell installation by Konarka, Inc.

In a Review Article in the Advanced Materials 25th anniversary series, Nobel Laureate Alan J. Heeger discusses BHJ solar cell operation and how efficiencies can top 20%.