Navigation Links
New solar cell self-repairs like natural plant systems
Date:1/4/2011

WEST LAFAYETTE, Ind. - Researchers are creating a new type of solar cell designed to self-repair like natural photosynthetic systems in plants by using carbon nanotubes and DNA, an approach aimed at increasing service life and reducing cost.

"We've created artificial photosystems using optical nanomaterials to harvest solar energy that is converted to electrical power," said Jong Hyun Choi, an assistant professor of mechanical engineering at Purdue University.

The design exploits the unusual electrical properties of structures called single-wall carbon nanotubes, using them as "molecular wires in light harvesting cells," said Choi, whose research group is based at the Birck Nanotechnology and Bindley Bioscience centers at Purdue's Discovery Park.

"I think our approach offers promise for industrialization, but we're still in the basic research stage," he said.

Photoelectrochemical cells convert sunlight into electricity and use an electrolyte - a liquid that conducts electricity - to transport electrons and create the current. The cells contain light-absorbing dyes called chromophores, chlorophyll-like molecules that degrade due to exposure to sunlight.

"The critical disadvantage of conventional photoelectrochemical cells is this degradation," Choi said.

The new technology overcomes this problem just as nature does: by continuously replacing the photo-damaged dyes with new ones.

"This sort of self-regeneration is done in plants every hour," Choi said.

The new concept could make possible an innovative type of photoelectrochemical cell that continues operating at full capacity indefinitely, as long as new chromophores are added.

Findings were detailed in a November presentation during the International Mechanical Engineering Congress and Exhibition in Vancouver. The concept also was unveiled in an online article (http://spie.
'/>"/>

Contact: Emil Venere
venere@purdue.edu
765-494-4709
Purdue University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Flexible nanoantenna arrays capture abundant solar energy
2. Understanding the science of solar-based energy: more researchers are better than one
3. New solar energy material captures every color of the rainbow
4. Solar power game-changer: Near perfect absorption of sunlight, from all angles
5. TU/e awarded for knowledge transfer to solar energy industry
6. Enhancing solar cells with nanoparticles
7. U of T chemistry discovery brings organic solar cells a step closer
8. Research highlights potential for improved solar cells
9. Cheaper materials could be key to low-cost solar cells
10. University of Alberta and NINT researchers make solar energy breakthrough
11. Ancient diatoms lead to new technology for solar energy
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New solar cell self-repairs like natural plant systems
(Date:8/31/2015)... 2015  US-Australian drug discovery company, Novogen Limited ... its comprehensive scientific review has identified high value ... of unmet patient need. Novogen is moving as ... prior to entering into Phase 1 clinical trials ... Chief Executive Officer, Iain Ross , said ...
(Date:8/31/2015)... STOCKHOLM , Aug. 31, 2015 Trimb ... an agreement to acquire YouMedical Group BV ("YouMedical"), a ... YouMedical has total annual sales of approximately EUR 16 ... categories. "Our ambition is to build ... an important step toward that goal. YouMedical gives us ...
(Date:8/31/2015)... ... August 31, 2015 , ... Proove Biosciences, Inc. is a finalist ... Annual High Tech Awards. , Now in its 22nd year, this premier awards event ... here, across the nation and around the world. The OC Tech Alliance will announce ...
(Date:8/28/2015)... ... August 28, 2015 , ... Proove Biosciences , a ... International Spine Intervention Society’ s 23rd Annual Scientific Meeting (ASM). The ASM ... a focus on evidence-based research and clinical application, the event gathered industry thought ...
Breaking Biology Technology:Novogen Announces The Outcome Of A Comprehensive Science Review 2Novogen Announces The Outcome Of A Comprehensive Science Review 3Novogen Announces The Outcome Of A Comprehensive Science Review 4Novogen Announces The Outcome Of A Comprehensive Science Review 5Novogen Announces The Outcome Of A Comprehensive Science Review 6Proove Biosciences, Inc. Named a Finalist for 22nd OC Tech Alliance High-Tech Awards for Company of the Year 2Proove Biosciences, Inc. Named a Finalist for 22nd OC Tech Alliance High-Tech Awards for Company of the Year 3Proove Biosciences, Inc. Named a Finalist for 22nd OC Tech Alliance High-Tech Awards for Company of the Year 4Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 2Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 3Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 4
... 2, 2011 /PRNewswire-Asia/ -- ShangPharma Corporation (NYSE: ... pharmaceutical and biotechnology research and development outsourcing company, today ... for the fourth quarter and full year 2010 ended ... host a conference call to discuss the results at ...
... – EMD Serono, Inc., an affiliate of Merck ... a complete response letter (CRL) from the U.S. ... drug application (NDA) for Cladribine Tablets, EMD Serono,s ... therapy for relapsing-remitting multiple sclerosis (MS). ...
... Communications , the team have created a microscope which shatters ... beating the diffraction limit of light. Previously, the standard ... 0.001 millimetres clearly. But now, by combining an ... the Manchester researchers can see 20 times smaller 50 ...
Cached Biology Technology:ShangPharma Corp. to Announce Fourth Quarter and Full Year 2010 Financial Results on March 15, 2011 2EMD Serono Receives Complete Response Letter From FDA on Cladribine Tablets New Drug Application 2EMD Serono Receives Complete Response Letter From FDA on Cladribine Tablets New Drug Application 3EMD Serono Receives Complete Response Letter From FDA on Cladribine Tablets New Drug Application 4Microscope could 'solve the cause of viruses' 2
(Date:8/31/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/st5b3m/saudi_arabia ) ... Biomedical Sensors Market - Growth, Trends & Forecasts (2014-2020)" ... Saudi Arabia Biomedical Sensors market is estimated at $0.23 ... the period 2014-2020 The near future will ... formulation of each individual. These sensors can be set ...
(Date:8/25/2015)... BELLEVUE, Wash. , Aug. 25, 2015  Sarcos ... today it will unveil its "Guardian S" snake robot, ... National Tactical Officers Association Conference on August 30 in ... is the first-ever commercially available energetically autonomous snake robot, ... in-field trials and is protected by more than 50 ...
(Date:8/20/2015)... 20, 2015 The wearable technology market ... active and healthy. However, wearable technology has the ... to help improve diagnostic capabilities and therapeutic outcomes. ... Wearable Technologies Conference 2015 , where ... wearables in healthcare.    "Over the ...
Breaking Biology News(10 mins):Saudi Arabia Biomedical Sensors Market Report 2015 - Growth, Trends & Forecasts (2014-2020) 2Sarcos to Debut First-of-its-Kind Snake Robot 2Sarcos to Debut First-of-its-Kind Snake Robot 3Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 2Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 3
... scientists at the Broad Institute of MIT and Harvard announced ... that can connect human diseases with potential drugs to treat ... human cells. Called the "Connectivity Map," the new tool and ... Science and in separate publications in the September 28 immediate ...
... your way through an unfamiliar neighborhood to a friend's ... is adept at adapting. It can make decisions based ... new information. , The nature of such sophisticated decision ... high-level processing, has been "poorly studied and little understood," ...
... sequence of a 5-million-year-old retrovirus and shown that it is ... ancestor of a large family of mobile DNA elements, some ... study, which is the first to generate an infectious retrovirus ... a breakthrough for the field of retrovirus research. The ...
Cached Biology News:Genetic 'roadmap' charts links between drugs and human disease 2Genetic 'roadmap' charts links between drugs and human disease 3Where we change our mind 2Scientists resuscitate a 5 million-year-old retrovirus 2