The term "photovoltaic" literally means "light-electricity". This technology arose in the 1950s and currently has great possibilities of making contributions in the transition towards sustainable development in the building sector. To this end, the challenge for the Sunglass project is to boost the use of photovoltaic solar energy by means of increasing the performance of the currently existing solar panels (their performance goes up to 15 % now).
Research carried out to date has focused on modifying the semiconductor material to make use of a greater part of the solar spectrum. Nevertheless, the Sunglass project puts forward an alternative approach, involving the "conversion of frequencies" phenomenon — based on absorbing photons of certain frequencies and emitting another range of frequencies.
Study on photoactive compounds
Various photoactive compounds were investigated for the project. The objective was to determine their capacity to absorb high-frequency radiation in order to subsequently emit it at ranges more effective for solar cells, as well as the possibility of implementing these materials in the glass coating of solar panels. These compounds were used to develop the special glass for these photovoltaic applications. In this way, substituting the current glass of solar panels by the new product, an increase in energy efficiency was obtained.
By means of the "conversion of frequencies" produced by the glass, the radiation incident on the solar cells is more effective and gives rise to a significant increase in their efficiency (about 2-3 %), and which will have huge repercussion in the building industry.
This new technique will boost the production of clean energy without acoustic contamination and will avoid greenhouse effect gas emissions, besides being able to be used as a complement to other energy sources and provide great flexibility in its applications.
Amaia Portugal | EurekAlert!
Researchers use light to remotely control curvature of plastics
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TU Graz researchers show that enzyme function inhibits battery ageing
21.03.2017 | Technische Universität Graz
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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