Solar Energy News

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Updated: 13 min 9 sec ago

Stacking two-dimensional materials may lower cost of semiconductor devices

Thu, 12/11/2014 - 11:55am
A team of researchers has found that stacking materials that are only one atom thick can create semiconductor junctions that transfer charge efficiently, regardless of whether the crystalline structure of the materials is mismatched -- lowering the manufacturing cost for a wide variety of semiconductor devices such as solar cells, lasers and LEDs.

New technique could harvest more of the sun's energy

Tue, 12/09/2014 - 10:18am
As solar panels become less expensive and capable of generating more power, solar energy is becoming a more commercially viable alternative source of electricity. However, the photovoltaic cells now used to turn sunlight into electricity can only absorb and use a small fraction of that light, and that means a significant amount of solar energy goes untapped. A new technology represents a first step toward harnessing that lost energy.

Is natural gas a 'bridge' to a hotter future?

Mon, 12/08/2014 - 2:57pm
Natural gas power plants produce substantial amounts of gases that lead to global warming. Replacing old coal-fired power plants with new natural gas plants could cause climate damage to increase over the next decades, unless their methane leakage rates are very low and the new power plants are very efficient.