Aalto University Archives – The Green Optimistic

Solar Cell Efficiency Boosted By Light-Trapping Nanoantenna Array

Leigh Hutchens — Tue, 22 Jan 2013 18:48:58 +0000

The efficiency of photovoltaic cells must be improved to further renewable energy science, but the endeavor has so far eluded scientists. To date, under controlled laboratory conditions, the best cells can convert nearly half the sunlight they absorb into 44% electricity. Commercial cells convert less than half of this amount. However, there may be hope. […]

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Black Silicon Makes Solar Cells More Efficient

Leigh Hutchens — Sat, 19 Jan 2013 06:18:30 +0000

Aalto University scientists have achieved an improvement in light absorption and surface passivation of silicon nanostructures after applying an atomic layer coating. This finding may advance high sensitivity light response devices such as high efficiency solar cells. Researchers detailed their findings in the January issue of Journal of Photovoltaics. Surface passivation is improved by utilizing […]

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A New Cheaper and Safer Li-ion Battery Production Method

Mila Luleva — Wed, 14 Nov 2012 16:42:47 +0000

It is a well-known fact that lithium-ion batteries are taking over the world with the increased demand for powering electric cars. It is also very well-known, however, that the process of producing these batteries can be quite expensive and harmful to the environment due to the presence of methylpyrrolidone (NMP) solvent used in the electrodes. […]

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A Cheaper Way to Produce Fuel Cells – The ALD Method

Mike Sandru — Wed, 21 Dec 2011 19:41:57 +0000

It was expected to see the manufacturing of fuel cells getting cheaper in the near future, but nobody thought it would go as far as the ALD (atomic layer deposition) method discovered by the researchers at the Aalto University in Finland. The ALD makes it possible to put in only 60% of what was previously […]

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