Navigation Links
Mimicking nature, water-based 'artificial leaf' produces electricity
Date:9/24/2010

A team led by a North Carolina State University researcher has shown that water-gel-based solar devices "artificial leaves" can act like solar cells to produce electricity. The findings prove the concept for making solar cells that more closely mimic nature. They also have the potential to be less expensive and more environmentally friendly than the current standard-bearer: silicon-based solar cells.

The bendable devices are composed of water-based gel infused with light-sensitive molecules the researchers used plant chlorophyll in one of the experiments coupled with electrodes coated by carbon materials, such as carbon nanotubes or graphite. The light-sensitive molecules get "excited" by the sun's rays to produce electricity, similar to plant molecules that get excited to synthesize sugars in order to grow, says NC State's Dr. Orlin Velev, Invista Professor of Chemical and Biomolecular Engineering and the lead author of a paper published online in the Journal of Materials Chemistry describing this new generation of solar cells.

Velev says that the research team hopes to "learn how to mimic the materials by which nature harnesses solar energy." Although synthetic light-sensitive molecules can be used, Velev says naturally derived products like chlorophyll are also easily integrated in these devices because of their water-gel matrix.

Now that they've proven the concept, Velev says the researchers will work to fine-tune the water-based photovoltaic devices, making them even more like real leaves.

"The next step is to mimic the self-regenerating mechanisms found in plants," Velev says. "The other challenge is to change the water-based gel and light-sensitive molecules to improve the efficiency of the solar cells."

Velev even imagines a future where roofs could be covered with soft sheets of similar electricity-generating artificial-leaf solar cells.

"We do not want to overpromise at this stage, as
'/>"/>

Contact: Mick Kulikowski
mick_kulikowski@ncsu.edu
919-515-8387
North Carolina State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Boston Univ., Veterans Affairs find sports brain trauma may cause disease mimicking ALS
2. Wildlife Conservation Society finds wild cat mimicking monkey calls
3. Some vocal-mimicking animals, particularly parrots, can move to a musical beat
4. Striata and CIC Launch Integrated eSignature, eDelivery, and eBilling for the Financial Services Industry
5. Striata and CIC Launch Integrated eSignature, eDelivery, and eBilling for the Financial Services Industry
6. Researchers build artificial ovary to develop oocytes into mature human eggs
7. New artificial skin could make prosthetic limbs and robots more sensitive
8. UCSF unveils model for implantable artificial kidney to replace dialysis
9. Artificial enzyme removes natural poison
10. DNA puts Stanford chemists on scent of better artificial nose
11. Stem cell, artificial liver research receives Coulter Foundation funding at NJIT
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/1/2014)... prairies and forests of the world can also be ... to a surprising new study led by Colorado State ... The research team analyzed 596 soil samples collected from ... diversity of below-ground life, most of which had never ... 16.2 percent of the organisms discovered in the park ...
(Date:9/30/2014)... of moorland burning is published today in the first ... of relieving tensions on both sides of the grouse ... Moorland Burning on the Ecohydrology of River basins) project ... practised predominantly to support red grouse populations for gun ... chemistry and physical properties, river water chemistry and river ...
(Date:9/30/2014)... --- Do we think of nature as something that we ... need to "preserve?" Or do we think of ourselves as ... of nature, but what about a house? , The ... also reflected in our actions, our speech and in cultural ... the University of Washington, the American Indian Center of Chicago ...
Breaking Biology News(10 mins):Microbes in Central Park soil: If they can make it there, they can make it anywhere 2Microbes in Central Park soil: If they can make it there, they can make it anywhere 3Grouse moor burning causes widespread environmental changes 2The cultural side of science communication 2
... Helsinki and Sibelius Academy, Helsinki, the neurobiological basis ... evaluated using candidate genes associated in the earlier ... data consisted of 343 family members from 19 ... and/or active amateurs. The musical aptitude was assessed ...
... In a new study published in Disease Models & ... the influence of known cancer genes on the development and ... with limited treatment options. Inside the cell, signals are ... or even die. Cancer often results when the molecules ...
... Thank parasites for making some of our immune proteins into ... genetics study that will appear in the June 8 issue ... 25). The study, conducted by a team of researchers in ... some of those genes into risk factors for intestinal disorders. ...
Cached Biology News:The neurobiology of musicality related to the intrinsic attachment behavior? 2Zebrafish provide a model for cancerous melanoma in humans 2Immune genes adapt to parasites 2
(Date:10/1/2014)... The U.S. Department of Labor has ... Edwardsville as part of the Trade Adjustment Assistance Community ... co-administered by the Department of Labor and Department of ... Thomas E. Perez and Secretary of Education Arne Duncan ... grants to nearly 270 colleges across the country. ...
(Date:9/30/2014)... in German . ... dots in a semiconductor layer. Quantum dots are small structures ... If a short laser pulse is fired at the photonic ... experiences a change in the electromagnetic field around it. This ... light by the dot. As soon as the refractive index ...
(Date:9/30/2014)... AMHERST, Mass. Using a bio-mimicking analog of ... of grass, an international research team led by ... has taken a major step in developing long-sought ... to electricity for use in electronic devices. ... UMass Amherst and others at Stanford University and ...
(Date:9/30/2014)... Shimadzu Scientific Instruments has released the DSES-1000 ... tool for measuring displacement in rubber and other ... movement distance, the DSES-1000 can measure elongations up ... 10 mm. In addition, it achieves +/- 0.2 ... within +/- 100 µm below 50-mm stroke. , ...
Breaking Biology Technology:U.S. Dept. of Labor Awards SIUE Nearly $10-Million Grant 2U.S. Dept. of Labor Awards SIUE Nearly $10-Million Grant 3U.S. Dept. of Labor Awards SIUE Nearly $10-Million Grant 4Ultrafast remote switching of light emission 2Blades of grass inspire advance in organic solar cells 2Blades of grass inspire advance in organic solar cells 3Shimadzu’s New Long-Travel Extensometer Increases Precision for Soft Material Testing 2
... In biological research laboratories, filtration techniques are performed to sterilize ... and separate and purify samples for processing. In most cases, ... The majority of filtration tasks ... 50 Torr (25 28Hg). A number of plastic labware ...
... , In this ... merits. A comprehensive examination of four Information Dependent Acquisition (IDA) survey ... found. A significant number of metabolites were found with each mode ... from glyburide. , Overview ...
... Purpose , ... Q TRAP LC/MS/MS system with Metabolite ID software for Phase I and ... productivity and confidence in your results. , ... Current trends in drug development are placing more emphasis on characterization of ...
Cached Biology Technology: Improving the Efficiency of Common Filtration Tasks in your Laboratory 2 Improving the Efficiency of Common Filtration Tasks in your Laboratory 3Strategies to Identify and Confirm Phase I Metabolites of Glyburide Using the 4000 Q TRAP System 2Strategies to Identify and Confirm Phase I Metabolites of Glyburide Using the 4000 Q TRAP System 3Strategies to Identify and Confirm Phase I Metabolites of Glyburide Using the 4000 Q TRAP System 4Strategies to Identify and Confirm Phase I Metabolites of Glyburide Using the 4000 Q TRAP System 5Strategies to Identify and Confirm Phase I Metabolites of Glyburide Using the 4000 Q TRAP System 6Identification of Phase I and Phase II Metabolites of Buspirone on the Q TRAP LC/MS/MS System 2Identification of Phase I and Phase II Metabolites of Buspirone on the Q TRAP LC/MS/MS System 3Identification of Phase I and Phase II Metabolites of Buspirone on the Q TRAP LC/MS/MS System 4Identification of Phase I and Phase II Metabolites of Buspirone on the Q TRAP LC/MS/MS System 5
Request Info...
Agarose-LE, 500 g. Suitable for soft agarose cloning. Nuclease-free.Gel point (1.5%): 36 1.5 C, EEO (-mr): 1200 g/cm2. Category: Nucleotides & Enzymes & Biochemicals, Ultrapure Biochemicals ....
Request Info...
Request Info...
Biology Products: