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:7/11/2014)... in German . ... uses the refraction of X-rays through a specimen instead ... this method are often of much higher quality than ... of Prof. Franz Pfeiffer are particularly interested in developing ... including X-ray phase-contrast imaging. One main goal is to ...
(Date:7/11/2014)... 2014, Shenzhen, China Researchers from Salk Institute for ... first time evaluated the safety and reliability of ... developed a new method, TALEN-HDAdV, which could significantly ... cell (hiPSC). This study published online in ... foundation for stem cell-based gene therapy. , The ...
(Date:7/11/2014)... July 11, 2014 Researchers have pioneered a ... The new technology, called Virtual Finger, allows scientists ... like neurons and synapses using the flat surface ... makes 3D imaging studies orders of magnitude more ... unprecedented level across many areas of experimental biology. ...
Breaking Biology News(10 mins):New simple setup for X-ray phase contrast 2A new genome editing method brings the possibility of gene therapies closer to reality 2Virtual finger enables scientists to navigate and analyze complex 3D images 2
... (self-donated) mononuclear cells derived from bone marrow (BMMNCs) have ... into patients with diabetes who are suffering from critical ... complication of diabetes. The team of researchers in Seville, ... in a recent issue of Cell Transplantation ...
... of Alberta is working with scientists from across North America to ... 15 scientists will examine DNA samples from children with autism and ... risk. , , And if siblings are at high risk ... , If theres a family of a child with autism, they ...
... Boston In a breakthrough for the way brain cancer ... Anna M. Krichevsky, PhD, of the Center of Neurologic Diseases ... Kesari, MD, PhD, director of Neuro-Oncology at UC San Diego ... reliably diagnosed and monitored without surgery. Previously, an accurate ...
Cached Biology News:Autologous bone marrow-derived mononuclear cell transplants can reduce diabetic amputations 2Researchers across North America team up to find genetic markers for autism 2
(Date:7/10/2014)... OAKS, Calif., July 10, 2014   Ceres, Inc ... and seed company, announced today financial results for the ... update on its business. Ceres reported that ... in product performance this growing season in Brazil, which ... affected the company,s sorghum evaluation areas for part of ...
(Date:7/10/2014)... 2014 Using microscopic polymer light resonators that ... at MIT,s Quantum Photonics Laboratory have developed new ... parts-per-billion range. Optical sensors are ideal for detecting ... ratio, compact, lightweight nature, and immunity to electromagnetic ... been developed before, the MIT team conceived an ...
(Date:7/10/2014)... fractional quantum Hall effect in bilayer graphene and shown ... by an electric field. , The fractional quantum ... thin sheets are exposed to large magnetic fields, is ... individual electrons behave as a single system. However, while ... many details of this collective behavior remain not well ...
(Date:7/10/2014)... out for crude 3-D glasses, polarized glasses, and ... basic devices, used to trick the brain into ... rendered obsolete with the introduction of new holography ... TAU doctoral students Yuval Yifat, Michal Eitan, and ... on nanoantennas that could be used for security ...
Breaking Biology Technology:Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9Swell new sensors 2Columbia researchers observe tunable quantum behavior in bilayer graphene 2Columbia researchers observe tunable quantum behavior in bilayer graphene 3Projecting a 3-dimensional future 2Projecting a 3-dimensional future 3
... ADVENTRX Pharmaceuticals,Inc. (Amex: ANX ) ... commercializing proprietary product candidates for the treatment,of ... the U.S. Food and,Drug Administration (FDA) has ... injection, which is currently being investigated in ...
... Calif., Aug. 16 Cepheid (Nasdaq:,CPHD) today announced ... purchase,order with Northrop Grumman for the purchase of ... cartridges and associated materials. The,anthrax test is currently ... States Postal Service (USPS) mail processing centers,nationwide. The ...
... 16 /PRNewswire-FirstCall/ - AEterna Zentaris Inc.,(TSX: AEZ; NASDAQ: ... and oncology, today announced the filling of a ... of Paul Blake,M.D., as Senior Vice President and ... Blake is timely and critical as our foremost,priority ...
Cached Biology Technology:ADVENTRX Announces Fast Track Designation Granted By the FDA For CoFactor For the Treatment of Metastatic Colorectal Cancer 2ADVENTRX Announces Fast Track Designation Granted By the FDA For CoFactor For the Treatment of Metastatic Colorectal Cancer 3Cepheid Enters Into Five-Year Agreement With Northrop Grumman for the Purchase of Anthrax Test Cartridges for Use in United States Postal Service Biohazard Detection Systems 2Cepheid Enters Into Five-Year Agreement With Northrop Grumman for the Purchase of Anthrax Test Cartridges for Use in United States Postal Service Biohazard Detection Systems 3AEterna Zentaris completes management team with the appointment of Chief Medical Officer 2AEterna Zentaris completes management team with the appointment of Chief Medical Officer 3
... standard fixed-angle microcentrifuge rotor at RCF ... tube filters consist of a membrane-containing ... They filter by centrifugation for bacteria ... removal of cells from media and ...
These Costar 96-well, flat-bottom polystyrene EIA plates are used for EIAs, ELISAs, and other protein binding assays. Supplied as box of 100 (20 packages; 5 plates per package)....
... System provides high-throughput, quantitative gene expression analysis ... patented priming strategy overcomes the biases that ... a few genes at a time. ... and more samples per run, removing bottlenecks ...
... provides a convenient method to probe conformational changes ... substrates. Thus, the kit may be used to ... as transport substrates for MDR1. Because UIC2 binding ... substrates, the MDR1 Shift Assay can be utilized ...
Biology Products: