Navigation Links
U of T-led research improves performance of next-generation solar cell technology
Date:9/18/2011

TORONTO, ON Researchers from the University of Toronto (U of T), the King Abdullah University of Science & Technology (KAUST) and Pennsylvania State University (Penn State) have created the most efficient solar cell ever made based on collodial-quatum-dots (CQD).

The discovery is reported in the latest issue of Nature Materials.

Quantum dots are nanoscale semiconductors that capture light and convert it into an energy source. Because of their small scale, the dots can be sprayed on to flexible surfaces, including plastics. This enables the production of solar cells that are less expensive to produce and more durable than the more widely-known silicon-based version. In the work highlighted by the Nature Materials paper entitled "Collodial-quantum-dot photovoltaics using atomic-ligand passivation," the researchers demonstrate how the wrappers that encapsulate the quantum dots can be shrunk to a mere layer of atoms.

"We figured out how to shrink the passivating materials to the smallest imaginable size," states Professor Ted Sargent, corresponding author on the work and holder of the Canada Research Chair in Nanotechnology at U of T.

A crucial challenge for the field has been striking a balance between convenience and performance. The ideal design is one that tightly packs the quantum dots together. The greater the distance between quantum dots, the lower the efficiency.

However the quantum dots are usually capped with organic molecules that add a nanometer or two. When working on a nanoscale, that is bulky. Yet the organic molecules have been an important ingredient in creating a colloid, which is a substance that is dispersed in another substance. This allows the quantum dots to be painted on to other surfaces.

To solve the problem, the researchers have turned to inorganic ligands, which bind the quantum dots together while using less space. The result is the same colloid characteristics but witho
'/>"/>

Contact: Liam Mitchell
media@ecf.utoronto.ca
416-978-4498
University of Toronto
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Pitt-led researchers create super-small transistor, artificial atom powered by single electrons
2. Pitt-led team develops nanoscale light sensor compatible with Etch-a-Sketch nanoelectronic platform
3. Pitt-led researchers to build foundation for quantum supercomputers with $7.5 million federal grant
4. Pitt-led researchers create nanoparticle coating to prevent freezing rain buildup
5. Scripps Research team discovers treatable mechanism responsible for often deadly response to flu
6. ShangPharma Subsidiary and Jiangsu Hengrui Medicine Partner in Therapeutic Antibody Research and Development
7. Johnson & Johnson Symposium Honors 2011 Recipient of The Dr. Paul Janssen Award for Biomedical Research
8. Metabolic Solutions Development Company Presents New Brown Fat Research at the European Association for the Study of Diabetes
9. Major grant from the National Science Foundation will sustain UCSB materials research through 2017
10. Norman R. Farnsworth, Renowned Medicinal Plant Researcher, Dies at 81
11. 2011 Lasker Awards Honor Medical Research Pioneers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/2/2014)... NJ (PRWEB) October 02, 2014 At a ... Bel-Art Products has introduced a new kind of ... to market is the Scienceware® Squeeze Rite™ Wash Bottle ... dip tube position within the bottle reduces the waste of ... dispensing of those liquids. , “Easier to squeeze when compared ...
(Date:10/2/2014)... , Oct. 2, 2014  CSSi ( www.CSSiEnroll.com ... the clinical research industry, is pleased to announce ... the month of October.  President Chris Trizna ... annual Outsourcing in Clinical Trials New England conference ... participating in the annual Site Solutions Summit sponsored ...
(Date:10/2/2014)... and BRIDGEWATER, N.J. ... XON) , a leader in synthetic biology, and ... generic drug manufacturer by volume in the U.S., ... Channel Collaboration (ECC) for a target active pharmaceutical ... the goal of the collaboration is to develop ...
(Date:10/1/2014)... What: , Cambridge Semantics, the ... Semantic Web technology, today announced its participation in the ... , Smart Data solutions provide semantic linkage and meaning ... understand, analyze and manage diverse data. Ben Szekely, vice ... on building a “life sciences data lake” and an ...
Breaking Biology Technology:New Wash Bottle Reduces Waste of Reagents, Solutions, and Other Liquids 2Patient Recruitment Expert CSSi to be Featured at Upcoming Industry Events 2Patient Recruitment Expert CSSi to be Featured at Upcoming Industry Events 3Intrexon and Amneal Expand Relationship with Second Product Collaboration 2Intrexon and Amneal Expand Relationship with Second Product Collaboration 3Cambridge Semantics to Present ‘A Useful Approach to Big Data’ at 2014 Big Data Leaders Forum 2
... 1, 2011 Elsevier, a world-leading provider ... today announced the availability of Elsevier Urban & ... the life and health sciences, on SciVerse ScienceDirect ... under the renowned German imprint Urban & Fischer, contain ...
... researchers at the University of Toronto have developed the ... This result enables a flexible form factor, not to ... which currently relies on rigid glass. The ... Nature Photonics . OLEDs provide high-contrast and ...
... Moore,s Law, hardly a law but undeniably a persistent trend, ... transistors that fit on a chip roughly doubles. It,s why ... players to movie cameras, from tablets to supercomputers grow ... expensive. Whether the trend can continue until it runs up ...
Cached Biology Technology:Elsevier Announces Availability of Urban & Fischer Journal Archives on SciVerse ScienceDirect 2University of Toronto researchers create world's most efficient flexible OLED on plastic 2A SHARP new microscope for the next generation of biochips 2A SHARP new microscope for the next generation of biochips 3A SHARP new microscope for the next generation of biochips 4
(Date:9/30/2014)... have in common? Unlike most eukaryotic multicellular organisms ... these organisms are all polyploid, meaning they have three ... 3 and 4 sets of chromosomes, respectively, and strawberries ... fact most plant species are polyploid. Polyploidy, or genome ... only recently, with the development of molecular tools, has ...
(Date:9/30/2014)... Ecker, a Salk professor and Howard Hughes Medical ... have been named recipients in the 2014 round ... (NIH) through the BRAIN (Brain Research through Advancing ... The grant, announced September 30, provides more than ... over three years. , The BRAIN Initiative, launched ...
(Date:9/30/2014)... of Medicine reports positive results of a phase ... subset of lung cancer marked by rearrangement of the ... with advanced non-small cell lung cancer testing positive for ... with 3 complete responses and 33 partial responses. Median ... disease to resume its growth after being slowed by ...
Breaking Biology News(10 mins):Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 2Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 3Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 4Salk scientists receive $3 million for BRAIN Initiative grant 2NEJM: Crizotinib effective in Phase 1 trial against ROS1 lung cancer 2
... pollution is costing each person in Europe around 130 - ... Nitrogen Assessment (ENA) is launched at a conference today in ... from 21 countries and 89 organizations, estimates that the annual ... - 280 billion (70 -320 billion), more than double the ...
... COLUMBUS, Ohio Stress not only sends the human immune ... the trillions of bacteria that work and thrive inside our ... important because those bacteria play a significant role in triggering ... prepared to quickly spring into action in the face of ...
... DETROIT For nearly two decades following the 1991 Gulf War, ... conflict: an unexplainable cluster of symptoms including but not limited ... 2008 that a scientific panel from the U.S. Department of ... served in the Gulf War were suffering from combinations of ...
Cached Biology News:Excessive nitrogen harms the economy and environment -- first Europe-wide assessment published 2Stress wrecks intestinal bacteria, could keep immune system on idle 2WSU receives DOD grant to determine common genetic link among Gulf War Illness patients 2
Goat polyclonal to JIK ( Abpromise for all tested applications). Antigen: Synthetic peptide: HKKDHVFIRDEAGHGD, corresponding to amino acids 396-411 of Human JIK. Entrez Gene ID: 51347 Swi...
Mouse monoclonal [SPM325] to Xanthine Oxidase, prediluted ( Abpromise for all tested applications). Antigen: C terminal 358 amino acid fragment of human xanthine oxidase. Entrez Gene ID: 749...
Rab1A...
Drugs and NO-drug Rat Anti-conjugated Acetyl Salicylic Acid Polyclonal Antibody...
Biology Products: