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:8/1/2014)... Asthmatic patients may soon have a more effective way ... discovery by researchers from the National University of Singapore ... Wong from the Department of Pharmacology at the NUS ... Eugene Ho Wanxing, a recent PhD graduate from the ... discovered that artesunate, a common herbal-based anti-malarial drug, can ...
(Date:8/1/2014)... new study, including two Simon Fraser University research ... and policymakers must collaborate closely on minimizing damage ... Viorel Popescu and Maureen Ryan, David H. Smith ... are among eight international co-authors of the newly ... the Environment . , Shale gas development is ...
(Date:7/31/2014)... decade ago, prestin was found to be a key gene ... found in the hair cells of the inner ear that ... cochlea, like an antique phonograph horn, amplify sound waves to ... study published in the advanced online edition of Molecular ... that prestin has also independently evolved to play a critical ...
Breaking Biology News(10 mins):NUS study shows effectiveness of common anti-malarial drug in controlling asthma 2Scientists warn time to stop drilling in the dark 2Scientists warn time to stop drilling in the dark 3
... first time, scientists at King,s College London have identified a ... brain to intelligence. The study is published today in ... behind some forms of intellectual impairment. The researchers ... human brain. It is known as ,grey matter, and plays ...
... , , , , , ... , , AUDIO: ... significantly... , Click here for more information. , ... , , , , , ...
... century, plants and animals will need to adapt or shift ... an innovative global map of where species are likely to ... The findings appear in the science journal Nature . ... Center for Ecological Analysis and Synthesis (NCEAS) working group, 18 ...
Cached Biology News:Scientists identify gene linking brain structure to intelligence 2Manga comics may help promote fruit consumption among youth 2Manga comics may help promote fruit consumption among youth 3Maps show expected redistribution of global species due to climate change 2Maps show expected redistribution of global species due to climate change 3
(Date:8/1/2014)... ON (PRWEB) August 01, 2014 ... has led to a better understanding embryonic development. ... and reorganize into structurally and functionally distinct tissues ... physical defects. Prof. Todd McDevitt, Melissa Kinney, ... biophysical signals interact with biochemical cues to control ...
(Date:7/31/2014)... 2014 “2014 Deep Research ... Industry” is a professional and in-depth research ... introduces Polyurethane Resin basic information, including its ... and industry overview. This research covers the ... as well as global industry analysis covering ...
(Date:7/31/2014)... -- Nearly 20,000 medical professionals and healthcare leaders gathered ... Lab Expo in Chicago from ... research and technology that will advance medicine and get ... Wednesday, July 30, more than 19,500 attendees had registered ... Expo, with more than 10,000 of these attendees coming ...
(Date:7/31/2014)... Alan Turing, the British mathematician (1912-1954), is famous for ... the 20th century. In 1936 he published a paper, ... first formal concept of a computer algorithm. He next ... designing the machines which cracked the German military codes, ... crucial battles. And in the late 1940,s he turned ...
Breaking Biology Technology:Study Links Biomechanics and Gene Expression in Stem Cells 2Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 2Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 3Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 4Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 2Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 3A mathematical theory proposed by Alan Turing in 1952 can explain the formation of fingers 2A mathematical theory proposed by Alan Turing in 1952 can explain the formation of fingers 3
... part of the,"SCIENCEsuisse" project, swissinfo.ch is presenting profiles ... disciplines. The focus is on,Switzerland,s high international reputation ... SSR idee suisse initiative, in collaboration with,the Swiss ... give readers an insight into what,scientists are studying ...
... Nov. 11 Accumetrics, Inc. has announced the,appointment of ... the company.,Dr. Young will serve in a part-time capacity ... and Director of the Cardiovascular,Innovations Program at The Ohio ... the main liaison to practicing clinicians, as well as,coordinating ...
... Potentia Pharmaceuticals, a,privately held biotechnology company developing ... announced today the appointments,of Johanna M. Seddon, M.D. ... Board effective November 6, 2008., Dr. Seddon ... pioneer,in nutritional and genetic research in age-related macular ...
Cached Biology Technology:25 Short Films About Top-Level Research on swissinfo.ch 2Accumetrics Appoints John J. Young, MD Chief Medical Officer 2Potentia Pharmaceuticals Appoints Johanna M. Seddon, M.D. and Janet Stoltz Sunness, M.D. to Scientific Advisory Board 2Potentia Pharmaceuticals Appoints Johanna M. Seddon, M.D. and Janet Stoltz Sunness, M.D. to Scientific Advisory Board 3
Anti-Goat HRP-DAB Cell & Tissue Staining Kit...
Anti-Goat HRP-AEC Cell & Tissue Staining Kit...
... provides all the materials necessary for the isolation ... antigen studies analysis. Kit Components: ... 5122) One bottle containing 220 mL of buffered ... (5X) - (Catalog No. 5113) One bottle containing ...
... CultureWell cell culture systems provide ... cultured cells for staining and ... silicone gaskets preassembled with standard ... plates. The entire system is ...
Biology Products: