Navigation Links
Cobalt replacements make solar cells more sustainable
Date:8/2/2013

Researchers at the University of Basel have successfully replaced the rare element iodine in copper-based dye-sensitized solar cells by the more abundant element cobalt, taking a step forward in the development of environmentally friendly energy production. The journal Chemical Communications has published the results of these so-called Cu-Co cells.

Dye-sensitized solar cells (DSCs) transform light to electricity. They consist of a semiconductor on which a dye is anchored. This colored complex absorbs light and through an electron transfer process produces electrical current. Electrolytes act as electron transport agents inside the DSCs.

Usually, iodine and iodide serve as an electrolyte. Chemists at the University of Basel have now been able to successfully replace the usual iodine-based electron transport system in copper-based DSCs by a cobalt compound. Tests showed no loss in performance.

The replacement of iodine significantly increases the sustainability of solar cells: Iodine is a rare element, only present at a level of 450 parts per billion in the Earth, whereas cobalt is 50 times more abundant, explains the Project Officer Dr. Biljana Bozic-Weber. Furthermore, this replacement also removes one of the long-term degradation processes in which copper compounds react with the electrolyte to form copper iodide and thus improves the long-term stability of DSCs.

The research group around the Basel chemistry professors Ed Constable and Catherine Housecroft is currently working on optimizing the performance of DSCs based on copper complexes. They had previously shown in 2012 that the very rare element ruthenium in solar cells could be replaced by copper derivatives.

This is the first report of DSCs, which combine copper-based dyes and cobalt electrolytes and thus represents a critical step towards the development of stable iodide-free copper solar cells. However, many aspects relating to the efficiency need t
'/>"/>

Contact: Reto Caluori
reto.caluori@unibas.ch
41-612-672-495
University of Basel
Source:Eurekalert

Page: 1 2

Related biology news :

1. Champion nano-rust for producing solar hydrogen
2. Organic electronics: Imaging defects in solar cells
3. Solar-powered nanofilters pump in antibiotics to clean contaminated water
4. NREL launches initiative to build solar performance database
5. NREL assembles industry working group to advance solar securitization
6. Searching for the solar systems chemical recipe
7. Solar power: Is it time for the big push?
8. Black silicon can take efficiency of solar cells to new levels
9. NJIT and Chinese Tech Institute join forces for 2013 Solar Decathlon in China
10. Using snail teeth to improve solar cells and batteries
11. NREL updates solar radiation database
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/5/2015)...  It is gratifying to see that the Obama ... science as a means to better understand human biology, ... was honored to participate in today,s White House event ... Since the 1980s my teams have been ... sequenced genome of a free living organism, the first ...
(Date:1/22/2015)... , Jan. 9, 2015 Valid S.A. ("Company") (BM&FBOVESPA: VLID3 ... in general the State of Washington,s ... a new enrollment and central issuance system for driver,s licenses ... The project planning and development will start in January ...
(Date:1/22/2015)... 13, 2015 Technology Showcase, Hall E -   EyeLock ... today announced it will showcase its EyeLock ID technology integrated ... Department of Energy,s Oak Ridge National Laboratory (ORNL) ... EyeLock,s iris identity authentication technology is being used to validate ...
Breaking Biology News(10 mins):J. Craig Venter, Ph.D., Co-Founder and CEO, Human Longevity, Inc. (HLI) Participates in White House Precision Medicine Event 2Valid USA Signs Contract For Washington Driver's License Issuance 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3
... Researchers with Lawrence Berkeley National Laboratory (Berkeley Lab) ... U.S Department of Homeland Security (DHS) in conjunction ... determine how airborne contaminants would spread if released ... is now underway and runs from December 5-11, ...
... Though they remain a leading killer, heart attacks ... diagnosed following initial onset of symptoms. In a study ... , researchers have identified cardiac myosin-binding protein C (cMyBP-C) ... one that may be particularly valuable for mild attacks ...
... Kingdom, December, 2009 Newly published research, by investigators, ... in the journal Stem Cells reported the ... Cell Deficiency" (LSCD) using the patients, own stem cells ... LSCD is a painful, blinding disease that ...
Cached Biology News:Berkeley Lab researchers participate in Homeland Security study of subway airflow 2Potential new heart attack biomarker uncovered 2Successful stem cell therapy for treatment of eye disease 2
(Date:3/4/2015)... DUBLIN , Mar. 04, 2015 Research ... announced the addition of Jain PharmaBiotech,s new report ... to their offering. This report ... a characteristic that can be objectively measured and ... pathogenic processes as well as pharmacological responses to ...
(Date:3/4/2015)... 4, 2015 /CNW/ - Resverlogix Corp. (TSX:RVX) (the ... a collaborative research program with Emerald Logic, ... Collective Evolution Technology (FACET), Emerald Logic analyzed ... obtained from each of 798 patients who ... trials ASSERT, SUSTAIN and ASSURE. The objective ...
(Date:3/4/2015)... 04, 2015 Proove Biosciences ... Medicine, is excited to announce the launch of ... Optimize the Management of Pain”. , The continuing ... for the next year. The focus of the ... recognize inadequate pain treatments, integrate appropriate pain management ...
(Date:3/4/2015)... Pa. , March 4, 2015 /PRNewswire/ ... services and technology provider, today announced that ... 10 countries convened at its annual European ... to discuss the use of ... challenges. BioClinica,s eClinical technologies include: the Microsoft ...
Breaking Biology Technology:Global Biomarkers Report 2014-2024 - Technologies, Markets and Companies 2Global Biomarkers Report 2014-2024 - Technologies, Markets and Companies 3Resverlogix Collaborates with Emerald Logic to Identify Factors Driving Drug Response and Efficacy in Phase 2 Program 2Resverlogix Collaborates with Emerald Logic to Identify Factors Driving Drug Response and Efficacy in Phase 2 Program 3Resverlogix Collaborates with Emerald Logic to Identify Factors Driving Drug Response and Efficacy in Phase 2 Program 4Proove Biosciences Launches CME Accredited Program with Medscape 2Proove Biosciences Launches CME Accredited Program with Medscape 3BioClinica Teams With Pharma To Tackle Clinical Trial Challenges In Europe 2BioClinica Teams With Pharma To Tackle Clinical Trial Challenges In Europe 3
... (NYSE: DGX ), the nation,s leading provider ... is scheduled to speak,at the Lehman Brothers Eleventh ... at The Loews Miami Beach Hotel, Miami, Florida.,The ... 9:00 a.m.,Eastern Time., The presentation will be ...
... DIEGO, March 14 NuVasive, Inc. (Nasdaq:,NUVA), a medical ... treatments for the spine, announced today,that Kevin O,Boyle, Executive ... at the Lehman Brothers Eleventh Annual Global,Healthcare Conference at ... on,Wednesday, March 19, 2008 at 10:15 a.m. ET., ...
... webcast live and archived on Company,s web site, ... (Nasdaq: MBRK ), a pharmaceutical company focused ... Dr. Edward M. Rudnic, MiddleBrook president and CEO, ... 2008, at 4:45 p.m.,Eastern Time., The presentation ...
Cached Biology Technology:Quest Diagnostics to Speak at Lehman Brothers 11th Annual Global Healthcare Conference 2NuVasive to Present at Lehman Brothers Eleventh Annual Global Healthcare Conference 2NuVasive to Present at Lehman Brothers Eleventh Annual Global Healthcare Conference 3MiddleBrook Pharmaceuticals to Present at Lehman Brothers Global Healthcare Conference 2
... 0-10 psi precision pressure regulator and pressurized ... Faster liquid-switching Steady flow rate ... delivery Can be added to any ... Scientific, any third-party manufacturer, even homemade. Connect to ...
...
Chicken polyclonal to UCK2 ( Abpromise for all tested applications). Antigen: Full length protein, corresponding to amino acids 1-261 of Human UCK2 Entrez Gene ID: 7371 Swiss Protein ID: ...
... (rEK) is a highly purified preparation of ... serine protease which recognizes the identical cleavage ... has similar enzymatic activity. Novagen&'s enzyme is ... purified to yield the highest activity available, ...
Biology Products: