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!
Stretchable biofuel cells extract energy from sweat to power wearable devices
22.08.2017 | University of California - San Diego
Laser sensor LAH-G1 - optical distance sensors with measurement value display
15.08.2017 | WayCon Positionsmesstechnik GmbH
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
16.08.2017 | Event News
04.08.2017 | Event News
26.07.2017 | Event News
23.08.2017 | Life Sciences
23.08.2017 | Life Sciences
23.08.2017 | Physics and Astronomy