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:7/11/2014)... 11, 2014  Researchers have pioneered a revolutionary ... new technology, called Virtual Finger, allows scientists to ... neurons and synapses using the flat surface of ... 3D imaging studies orders of magnitude more efficient, ... level across many areas of experimental biology. The ...
(Date:7/10/2014)... Understanding the need for better quality and ... gap that currently exists in this area, ChanTest has ... of validated ion channel and GPCR cell lines. ... ion channels control many critical physiological functions throughout the ... potential to treat a variety of human diseases. ...
(Date:7/10/2014)... EvoDerma ’s NOOME Anti-Aging Motion has ... now comes with a second treatment cup to help prevent ... new cup is thinner on the edges for a softer ... thin and uneven surfaces on the face, neck and décolleté. ... treatment on areas such as the cheeks and neck, or ...
(Date:7/10/2014)... , July 10, 2014 /PRNewswire-iReach/ -- Tute ... interpretation, today announced an agreement with Lineagen, ... for Lineagen,s NextStep Dx PLUS.  Lineagen, ... and neurological disorders, currently offers FirstStep Dx ... testing service used by healthcare providers as ...
Breaking Biology Technology:Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 2Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 3Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 2Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 3Introducing a New Bonus Treatment Cup for EvoDerma’s NOOME Anti-Aging Motion 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4
... Mass., Sept. 19 PLC Systems Inc.,(Amex: PLC ... of failure to,meet listing qualifications dated September 17, 2008 ... Exchange. The notice,stated that the Company was not in ... the Company,s shareholders, equity was less,than $4,000,000 as of ...
... INNSBRUCK, Austria, September 19 Thirty seven medical,experts ... on the medical,community to take urgent action to ... mental illness such as schizophrenia or bipolar,disorder(i)., ... Illnesses in Patients with Severe Mental Disorders: Clinical,Policy, ...
... CLAREMONT, Calif., Sept. 18 Keck Graduate Institute,(KGI) ... program for industry,professionals to learn the latest developments ... "Mammalian cell biotechnology has undergone explosive growth over ... George B. and Joy Rathmann,Professor and director of ...
Cached Biology Technology:PLC Systems Receives Delisting Notice From American Stock Exchange 2Global Psychiatrists Unite to Improve Services in Mental Health 2Global Psychiatrists Unite to Improve Services in Mental Health 3KGI Offers Mammalian Cell Culture Program for Biotech Industry Professionals 2
(Date:7/11/2014)... exists that cannabinoid receptor type 1 can ... influx, and reduce neurotransmitter release. However, some ... can increase extracellular Ca2+ influx and increase ... team, Tongji Hospital Affiliated to Tongji Medical ... China used whole cell voltage-clamp and calcium ...
(Date:7/11/2014)... Using spider toxins to study the proteins that let ... say they have stumbled upon a biological tactic that ... insect plagues in a safe and environmentally responsible way. ... be lethal for one species and harmless for a ... target specific pests without harming beneficial species like bees. ...
(Date:7/10/2014)... Fe, Albuquerque, and other major cities in New Mexico, ... treated municipal wastewater rather than precious potable water supplies. ... 40% of all golf courses receive treated effluent. Reusing ... , Additionally, golf courses and homeowners alike fertilize their ... fertilizer is nitrate. A New Mexico State University turfgrass ...
Breaking Biology News(10 mins):Potent spider toxin 'electrocutes' German, not American, cockroaches 2Potent spider toxin 'electrocutes' German, not American, cockroaches 3'Tailored' water -- the latest in lawn care 2
... 30 years with Chip Supply, Inc., President & CEO ... Perrott served in various capacities through the years, becoming ... Supply grew into the largest independent die distributor in ... of high reliability interconnect solutions, serving the military, aerospace, ...
... fulfill a range of diversified functions. Often such specialization ... places within a cell. It ensures that particular functions ... intracellular asymmetry in the otherwise fluid environment of the ... represent an especially important type of freight. They are ...
... through nearly 390,000 chemical compounds had led scientists to ... surrounding the brain with effects promising for new drugs ... substance, which blocks formation of cholesterol in the brain, ... Aleksey G. Kazantsev and colleagues previously discovered that blocking ...
Cached Biology News:How molecules get to the right place at the right time 2How molecules get to the right place at the right time 3
... HandyStep electronic from BRAND adds ergonomics ... is the only electronic, motor-driven repeating ... tips, including BRAND PD-Tip syringe tips, ... Dispenser Tips,and VWRbrand Combi-Syringes. Select virtually ...
... The Nick Translation System is ideal ... DNA. The Nick Translation System: Provides ... labeled nucleotide incorporation Yields >10 8 ... Includes control DNA to monitor the performance ...
... printer is portable, easy-to-use and makes identifying your ... Easy to use Labels withstand ... slide sizes Time/Date stamp ... Serialization feature makes you more efficient ...
... cAMP - [125I] Direct SPA ... SPA.Includes lysis reagents that eliminate lengthy ... cAMP measurement (optional use).Range: 1.32-84.28 ng/ml ... pmol/ml).Overnight protocol.Store at 2-8 C. Category: ...
Biology Products: