Navigation Links
Ancient diatoms lead to new technology for solar energy
Date:4/8/2009

CORVALLIS, Ore. Engineers at Oregon State University have discovered a way to use an ancient life form to create one of the newest technologies for solar energy, in systems that may be surprisingly simple to build compared to existing silicon-based solar cells.

The secret: diatoms.

These tiny, single-celled marine life forms have existed for at least 100 million years and are the basis for much of the life in the oceans, but they also have rigid shells that can be used to create order in a natural way at the extraordinarily small level of nanotechnology.

By using biology instead of conventional semiconductor manufacturing approaches, researchers at OSU and Portland State University have created a new way to make "dye-sensitized" solar cells, in which photons bounce around like they were in a pinball machine, striking these dyes and producing electricity. This technology may be slightly more expensive than some existing approaches to make dye-sensitized solar cells, but can potentially triple the electrical output.

"Most existing solar cell technology is based on silicon and is nearing the limits of what we may be able to accomplish with that," said Greg Rorrer, an OSU professor of chemical engineering. "There's an enormous opportunity to develop different types of solar energy technology, and it's likely that several forms will ultimately all find uses, depending on the situation."

Dye-sensitized technology, for instance, uses environmentally benign materials and works well in lower light conditions. And the new findings offer advances in manufacturing simplicity and efficiency.

"Dye-sensitized solar cells already exist," Rorrer said. "What's different in our approach are the steps we take to make these devices, and the potential improvements they offer."

The new system is based on living diatoms, which are extremely small, single-celled algae, which already have shells with the nanostructure that
'/>"/>

Contact: Greg Rorrer
rorrergl@engr.oregonstate.edu
541-737-3370
Oregon State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Scientists retrace evolution with first atomic structure of an ancient protein
2. CU-Boulder team discovers first ancient manioc fields in Americas
3. Ancient organisms discovered in Canadian gold mine
4. Amber specimen captures ancient chemical battle
5. Ancient whale fall from Californias Año Nuevo Island one of youngest, most complete known
6. Ancient whale fall from Californias Ao Nuevo Island one of youngest, most complete known
7. 454 Sequencing: Science paper describes a novel, highly efficient method of sequencing ancient DNA
8. Newfound ancient African megadroughts may have driven the evolution of humans and fishes
9. Ancient amphibians left full-body imprints
10. Scientists melt million-year-old ice in search of ancient microbes
11. Ancient fish bones reveal impacts of global warming beneath the sea
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2014)... climate change shifts the geographic ranges in which animals ... has on their parasites. Does an increased range for ... well? , Not necessarily, says a team of UC ... Kuris. In a study published in the Journal ... for some species, the opposite may happen: Hosts may ...
(Date:7/9/2014)... NY, July 9, 2014Biofuels derived from the oils produced ... fossil fuels. To achieve this goal, optimization of cost ... open pond systems, is needed. Sapphire Energy has developed ... open pond algae cultivation systems, described in Industrial ... Inc., publishers. The article is available on the ...
(Date:7/9/2014)... URBANA, Ill. With over 100 diseases that can ... the top of the most wanted list? University of ... reason that more research is needed on the fungus ... associated with cool, damp growing conditions but Macrophomina ... hot and dry drought conditions. , "As the climate ...
Breaking Biology News(10 mins):Not at home on the range 2Not at home on the range 3Not at home on the range 4Controlling contamination in open algae ponds for biofuels 2Climate change provides good growing conditions for charcoal rot in soybeans 2Climate change provides good growing conditions for charcoal rot in soybeans 3
... of how an abundance of fossils have been marvellously preserved ... of Africa has been solved by a team of geologists ... have established that an ancient wind brought life to the ... the dead. Sarah Gabbott, Jan Zalasiewicz and colleagues investigated ...
... a strategic alliance for catalysis research, "Munich Catalysis." In addition ... aspect of this cooperation will be the development of innovative ... global demand for energy and base chemicals on a long-term ... to two million euros a year. The cooperation is based ...
... The Great Tit is a common garden bird of many ... thought of as fairly inquisitive but it has long been ... surroundings. Some birds known as "fast" or "proactive" ... or "reactive" birds are more cautious. The differences are ...
Cached Biology News:Up to 20 million euros for Munich Catalysis research cooperation 2Up to 20 million euros for Munich Catalysis research cooperation 3Bird-brained? Birds' personalities are correlated with their hormone levels 2
(Date:1/15/2014)... 15, 2014 TaiGen Biotechnology Company, Limited ("TaiGen") today ... R-Pharm, a leading Russian pharmaceutical company, to develop and ... Russian Federation , Turkey ... is a novel antibiotic for the treatment of bacterial ...
(Date:1/14/2014)... 2014  3D Communications, a leading provider of strategic communications services to ... events in the United States and ... Cox , JD, is returning to the firm,s Washington, ... 3D after more than two years of service as Associate Commissioner ...
(Date:1/14/2014)... SAN DIEGO and BETHESDA, Md. ... they are joining together with two institutes from the ... more reliable tools for bringing safer, more effective treatments ... with the National Center for Advancing Translational Sciences (NCATS) ...
(Date:1/14/2014)... Rockville, MD (PRWEB) January 14, 2014 ... dedicated to developing innovative information technology solutions for ... other health care stakeholders, announced today the signing ... the US Food and Drug Administration (FDA). ...
Breaking Biology Technology:TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4Former FDA Associate Commissioner Returns To 3D Communications 2Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2
... previously reported, communicated in late 2007 ... ... Biotech Products, L.P.,today modified prescribing information for PROCRIT(R) (Epoetin alfa),following guidance from ... within the erythropoiesis-stimulating agent,(ESA) class., Modifications to the label were based ...
... by the Environmental Protection Agency (EPA) to fine California ... nano-pesticides is being applauded by David Rejeski, the director ... should receive a big pat on the back for ... federal pesticide law that has been on the books ...
... FRANKLIN LAKES, N.J., March 7 BD (Becton,Dickinson and Company) ... that it would present at the following investor healthcare,conferences:, ... 13, 2008 8:45 a.m. Greenwich Mean Time (4:45 a.m. ... Company 28th Annual Healthcare Conference March 20, 2008 ...
Cached Biology Technology:Ortho Biotech Modifies Prescribing Information for PROCRIT(R) (Epoetin alfa) 2Ortho Biotech Modifies Prescribing Information for PROCRIT(R) (Epoetin alfa) 3Ortho Biotech Modifies Prescribing Information for PROCRIT(R) (Epoetin alfa) 4Ortho Biotech Modifies Prescribing Information for PROCRIT(R) (Epoetin alfa) 5Ortho Biotech Modifies Prescribing Information for PROCRIT(R) (Epoetin alfa) 6Ortho Biotech Modifies Prescribing Information for PROCRIT(R) (Epoetin alfa) 7
...
... An entire pressurized perfusion system ... in physiology, biophysics, electrochemistry, or general ... as little as 100 microliters of ... eight solutions in milliseconds from a ...
...
Request Info...
Biology Products: