by Staff Writers
Lund, Sweden (SPX) Jul 19, 2016
For the first time, researchers have successfully measured in detail the flow of solar energy, in and between different parts of a photosynthetic organism. The result is a first step in research that could ultimately contribute to the development of technologies that use solar energy far more efficiently than what is currently possible.
For about 80 years, researchers have known that photochemical reactions inside an organism do not occur in the same place as where it absorbs sunlight. What has not been known, however, is how and along what routes the solar energy is transported into the photosynthetic organism - until now.
"Not even the best solar cells that we as humans are capable of producing can be compared to what nature performs in the first stages of energy conversion. That is why new knowledge about photosynthesis will become useful for the development of future solar technologies", says Donatas Zigmantas, Faculty of Science at Lund University, Sweden.
Together with his colleagues Jakub Dostal, Lund University, and Jakub Psencik, Charles University in Prague, Donatas Zigmantas has studied the photosynthesis of bacterial cells. Using ultrafast spectroscopy - a measurement method that uses light to study molecules etc. - they were able to locate the routes along which solar energy is transported. The routes run both within and between the components of a photosynthetic cell. According to the researchers, their discovery demonstrates how the biological machinery is connected.
The research results show that the transport of solar energy is much more efficient within, than between, different cell components. It limits the transfer of energy between the components and thereby also the efficiency of the entire photosynthetic energy conversion process.
"We have identified the transport routes as well as the bottlenecks that cause congestion in the photosynthetic energy conversion. In the future, this knowledge can be used within solar cell technology", says Donatas Zigmantas.
So far this is basic research - more studies of how energy is transported in both natural and artificial systems are needed before the results can be turned into practice.
"However, in the longer term, our results might well provide the basis for the development and manufacturing of systems on a molecular level that collect, store and transport sunlight to the solar cells", says Donatas Zigmantas.
The Lund researchers' discoveries were recently published in an article in the scientific journal Nature Chemistry.
All About Solar Energy at SolarDaily.com
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement|