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solar energy

Solar cell farm. Illustration: shutterstock

Researchers have achieved a breakthrough in increasing the efficiency of solar cells

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renewable energies. Illustration: shutterstock

Nike is moving to renewable energy

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In the figure you can see the ratio between the photovoltage and photocurrent in the photoanode for different radiation concentration levels. As the radiation intensity increases, there is a significant increase in photocurrent. Similar to solar cells, for low voltage photovoltaics, this increase is directly proportional to the radiation intensity. In addition, with the increase in radiation intensity, the photovoltage built up in the electrode also increases. Since the addition of photovoltage comes in addition to the increase in current, there is an increase in the efficiency of the energy conversion. On the side of the graph you can see an illustration of the experimental system. The light comes from a light source that simulates sunlight. This light is focused on the photoanode with the help of a lens. The intensity of the radiation affecting the electrochemical cell is determined by the distance between the photoanode and the lens

Sun, water, fuel

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An artificial photosynthetic system that includes DNA molecules combined with a standard dye. Image: Kalmars University in Sweden

Artificial photosynthesis to convert solar energy into chemical energy

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Credit: Image provided courtesy of Joint Center for Artificial Photosynthesis; artwork by Darius Siwek. - See more at caltech site

Artificial leaf for efficient production of electricity

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Scientists have succeeded in developing a new and particularly efficient arrangement of components in a solar cell, where the charge donors are bundles of polymer (in green) and the charge acceptors are spherical carbon molecules, fullerenes (in purple and brown). [Courtesy of UCLA]

Improving the efficiency of cheap solar panels

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An electron microscope image from a previous study showing the nanoscale ridges that make up the surface of black silicon used in the production of solar cells. [Courtesy of Barron Group/Rice University]

An efficient method for producing solar cells

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green energy. Illustration: shutterstock

An initiative in the Knesset: a bill to promote green energy

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Green energy in the sky. Solar Impulse 2 in the skies of Dubai. photo: Solar Impulse

Around the world without fuel

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renewable energy. Illustration: shutterstock

The sun and the wind will provide the cheapest energy in the future

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Houses on the roofs of which solar panels are installed in the Netherlands. Photo: shutterstock

A new material for the development of flexible solar panels

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Polymer solar cells. Photo: Northern California State University

A new efficiency record for polymer solar cells

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Prof. Michael Gretzel. From Wikipedia

Two solar cell developers won the Prime Minister's Award for global innovation in the field of oil substitutes

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Solar energy together with a landscape: the researcher holds in his hands a colorless substance capable of utilizing the sun's energy to generate electricity. [Courtesy: Yimu Zhao]

Solar energy that does not block the view

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Spinach. Photo: shutterstock

Spinach as a source of alternative energy?

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A tiny device for absorbing solar energy. Credit: Felicia Frankel, Massachusetts Institute of Technology

Twice Sun / Jeffrey Giller

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Nano Electronics. Photo: shutterstock

Electronic nano-components as a basis for renewable energy

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solar cells Photo: shutterstock

Wave-like electrons in organic materials will revolutionize the field of solar energy

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Prof. Motti Hershkowitz. Photo: Danny Machlis, Ben-Gurion University of the Negev

Ben-Gurion University of the Negev researchers have developed a green alternative to crude oil

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The Prime Minister and the Minister of Science present the award to Prof. Surya Farkash (Photo: Yoav Dudkevich)

Dr. Gal Luft, chairman of the Research Institute for Global Risk Analysis in Washington: "We need to reach a situation where every car can use a variety of types of fuel."

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The solar house built by the Israeli team in the 2013 Solar Decathlon competition in China

Cleantech cluster: an achievement for the Israeli team that built a solar house; a renewable energy planning system; Solar classroom in Nigeria * Smart pot

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XNUMXD visualization of an atom. Illustration: shutterstock

Controlling the electronic spin for the development of solar cells

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A simulation illustration of a commercial plant that utilizes the sun's rays to split a water molecule and obtain clean hydrogen fuel, a plant consisting of an array of towers and mirrors to concentrate the sun's rays [courtesy of the University of Colorado].

Water splitting with the help of solar energy will help in the efficient production of hydrogen fuel

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Minister of Science, Technology and Space Jacob Perry met in his office with Chinese Ambassador Gao Yanping, 7/8/2013. Photo: Ministry of Science

China Cluster: The Chinese Embassy met with Minister Perry; Israel's ambassador to China will visit a delegation that is building a solar house there

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Photo 2: A solar panel used as the main source of electricity for an ecological farm, near Modi'in-Maccabim-Reot. Image source: Wikipedia.

Technion and EPFL researchers have reached a new record for the rate of conversion of solar energy into hydrogen fuel by breaking down water using rust

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