Navigation Links
Taking solar technology up a notch
Date:5/23/2012

an efficient, more stable and longer lasting cell -- will be published May 24 by the journal Nature.

Kanatzidis, the Charles E. and Emma H. Morrison Professor of Chemistry in the Weinberg College of Arts and Sciences, and Chang, a professor of materials science and engineering at the McCormick School of Engineering and Applied Science, are the two senior authors of the paper.

"This is the first demonstration of an all solid-state dye-sensitized solar cell system that promises to exceed the performance of the Grtzel cell," Chang said. "Our work opens up the possibility of these materials becoming state of the art with much higher efficiencies than we've seen so far."

The Northwestern cell exhibits the highest conversion efficiency (approximately 10.2 percent) so far reported for a solid-state solar cell equipped with a dye sensitizer. This value is close to the highest reported performance for a Grtzel cell, approximately 11 to 12 percent. (Conventional solar cells made from highly purified silicon can convert roughly 20 percent of incoming sunlight.)

Unlike the Grtzel cell, the new solar cell uses both n-type and p-type semiconductors and a monolayer dye molecule serving as the junction between the two. Each nearly spherical nanoparticle, made of titanium dioxide, is an n-type semiconductor. Kanatzidis' CsSnI3 thin-film material is a new kind of soluble p-type semiconductor.

"Our inexpensive solar cell uses nanotechnology to the hilt," Chang said. "We have millions and millions of nanoparticles, which gives us a huge effective surface area, and we coat all the particles with light-absorbing dye."

A single solar cell measures half a centimeter by half a centimeter and about 10 microns thick. The dye-coated nanoparticles are packed in, and Kanatzidis' new material, which starts as a liquid, is poured in, flowing around the nanoparticles. Much like paint, the solvent evaporates, and a solid mass results. T
'/>"/>

Contact: Megan Fellman
fellman@northwestern.edu
847-491-3115
Northwestern University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Miniaturizing memory: Taking data storage to the molecular level
2. Diagnostic Imaging to Deliver Its 11th Annual Webcast of Key Events Taking Place at RSNA 2008
3. Patton Medical Devices Partners With Unomedical to Develop and Market the i-port Advance(TM) Injection Port for People Taking Multiple Daily Injections
4. Gloabl Harvest Initiative: Taking Down Fences To Meet Future Needs
5. WAVE Conference and Exhibition 2011 Taking Products to Market incorporating Micro & Nano Technology
6. Taking Control of Diabetes: Support World Diabetes Day (14th November 2010)
7. Taking brain-computer interfaces to the next phase
8. Pediatrics Study Finds Children Taking ADHD Medications Did Not Suffer More Serious Heart Problems or Cardiovascular-related Death
9. Office of Naval Research taking on challenges of unmanned underwater vehicles
10. Flexible nanoantenna arrays capture abundant solar energy
11. Understanding the science of solar-based energy: more researchers are better than one
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/27/2014)... plants survive impact by the huge amounts of ... this energy for photosynthesis. The hypothesis is that ... dissipate the energy throughout the entire protein molecule ... have now managed to successfully ,film, this process. ... proteins which play a role in photosynthesis and ...
(Date:8/27/2014)... , Aug. 27, 2014 ... the "Global Lactic Acid  (Biodegradable Polymer, Food ... Trends & Forecasts to 2019" report to ... simplest hydroxyl-carboxylic acid with an asymmetrical carbon atom. ... the biodegradable polymer, food and beverage, personal care ...
(Date:8/27/2014)... “We are honored to be named ... Thangaraj, CEO of Radiant Sage. “We are offering truly ... imaging corelab market to a different level. We ... to efficiently and effectively manage the massive amounts of ... analyzed and read by trained physicians. Being recognized by ...
(Date:8/27/2014)... 27, 2014 Flagship Biosciences LLC, a ... to the pharmaceutical and medical device industries, has announced ... fast growing company has consolidated its histology and tissue ... to Westminster, CO, just north of Denver. The ... W. 103rd Ave., Suite 100, Westminster, CO 80021 , ...
Breaking Biology Technology:DTU researchers film protein quake for the first time 2Global Lactic Acid (Biodegradable Polymer, Food & Beverage, Personal Care & Pharmaceutical) Market - Trends & Forecasts to 2019 2Radiant Sage Named to CIOReview List of 100 Most Promising Technology Companies 2Flagship Biosciences Announces Relocation and Expansion 2
... BRIDGEWATER, N.J., April 3, 2012 Hamamatsu Corporation ... previously distributed through third-party dealers, will now be ... 2012, the company is responsible for the sales, ... NanoZoomer product line for new customers throughout North ...
... PHILADELPHIA, April 2, 2012 Echo Therapeutics, Inc. (Nasdaq: ... Symphony® tCGM System as a non-invasive, wireless, transdermal continuous ... transdermal drug delivery, is pleased to announce that its ... at the 72nd Scientific Sessions of the American Diabetes ...
... cellphone you can wrap around your wrist? Such a thing ... James Tour, whose lab has developed transparent, flexible memories using ... today in a talk at the national meeting and exposition ... new type of memory could combine with the likes of ...
Cached Biology Technology:Hamamatsu Corporation Announces Exclusive Distribution of Its NanoZoomer Whole-Slide Scanners 2Echo Therapeutics to Present Positive Clinical Trial Results at the 72nd Scientific Sessions of the American Diabetes Association 2Echo Therapeutics to Present Positive Clinical Trial Results at the 72nd Scientific Sessions of the American Diabetes Association 3
(Date:8/27/2014)... doses of the HIV drug maraviroc, a new study ... before the drug was licensed in 2007, included mostly ... to removing maraviroc from the body. The current study ... including nearly half of African-Americans end up ... who lack the protein even when given the same ...
(Date:8/27/2014)... brain of mice, scientists have altered the emotional ... Howard Hughes Medical Institute investigator Susumu Tonegawa at ... the connections between the part of the brain ... the part of the brain that stores the ... , Altering those connections can transform a negative ...
(Date:8/27/2014)... listen carefully to someone, the first thing we do ... stop moving altogether. This strategy helps us hear better ... , This interplay between movement and hearing also has ... has long suggested that the brain,s motor cortex, which ... rise to our conscious perception of sound. , A ...
Breaking Biology News(10 mins):Dosage of HIV drug may be ineffective for half of African-Americans 2Researchers change the emotional association of memories 2Researchers change the emotional association of memories 3Researchers change the emotional association of memories 4Stop and listen: Study shows how movement affects hearing 2Stop and listen: Study shows how movement affects hearing 3
... are living longer despite cellular defects, a discovery that ... and how doctors could one day limit or reverse ... new University of Colorado at Boulder study. In ... the metabolic state of genetically engineered lab worms called ...
... University in St. Louis are finding common ground between ... embryonic development. Larry A.Taber, Ph.D., the Dennis ... Bayly, Ph.D., Hughes Professor of Mechanical Engineering, are examining ... of the brains surface, or cortex, which gives the ...
... increase in two immune system proteins essential for inflammation to ... that might accelerate cardiovascular disease. The same process ... the elderly. The findings also suggest that chronic ... that can lead to the buildup of plaques clogging coronary ...
Cached Biology News:CU-Boulder worm study sheds light on human aging, inherited diseases 2CU-Boulder worm study sheds light on human aging, inherited diseases 3Engineers study brain folding in higher mammals 2Engineers study brain folding in higher mammals 3Depression, aging, and proteins made by a virus may all play role in heart disease 2Depression, aging, and proteins made by a virus may all play role in heart disease 3
... System - dCTP with CyScribe GFX ... generation and purification of Cy3- and ... for complete cDNA labeling and purification.Flexible ... for performing labeling reactions with either ...
Canine Serum...
UV-NIR light source for USB2000, HR4000, HR2000+...
... EPS 1001 Power Supply, 1. ... maximum.Constant voltage, constant current, and constant ... read-outs for precision and reproducibility.Stores and ... ultrathin flatbed gels on Multiphor ...
Biology Products: