Navigation Links
With a simple coating, nanowires show a dramatic increase in efficiency and sensitivity
Date:7/6/2011

a hundred-fold reduction in surface recombination. Overall, the coated wires boasted a 90-fold increase in photosensitivity compared to uncoated ones.

Co-author Yaping Dan, a postdoctoral fellow in Crozier's lab who spearheaded the experiments, suggests that the reason for the increased efficiency is that the coating physically extends the broken atom bonds at the single-crystalline silicon surface. At the same time, the coating also may form a highelectric potential barrier at the interface, which confines the photogenerated charge carriers inside the single-crystalline silicon.

"As far as we know, scientists have not done these types of precision measurements of surface passivation at the level of single nanowires," says Crozier. "Simply by putting a thin layer of amorphous silicon onto a crystalline silicon nanowire reduces the surface recombination nearly two orders of magnitude. We think the work will address some of the disadvantages of nanowires but keep their advantages."

Due to their increased carrier lifetime, the researchers expect that their wires will offer higher energy conversion efficiency when used in solar cell devices.


'/>"/>

Contact: Michael Patrick Rutter
mrutter@seas.harvard.edu
617-496-3815
Harvard University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Roche Announces Back-to-Basics Approach to Diabetes Care - Simpler is Better
2. Simple test could offer cheap solution to detecting landmines
3. Argonne Scientists Use Bacteria to Power Simple Machines
4. arGEN-X Raises EUR9.5 Million to put SIMPLE Antibody(TM) Platform to Work
5. ZyGEM Releases Data Confirming its prepGEM(R) Insect Kit is a Simple, Rapid Method for Extracting Insect DNA for Species Identification
6. Simple test could offer cheap solution to detecting landmines
7. Researchers develop ultra-simple method for creating nanoscale gold coatings
8. Penn collaboration leads to simpler method for building varieties of nanocrystal superlattices
9. Liquid metal key to simpler creation of electrodes for microfluidic devices
10. Stretched rubber offers simpler method for assembling nanowires
11. Northern Illinois University scientists find simple way to produce graphene
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
With a simple coating, nanowires show a dramatic increase in efficiency and sensitivity
(Date:1/15/2014)... SAN JOSE, California , January 15, 2014 ... conjugates for cancer, today announced the appointment of Thomas C ... has over 20 years, development experience gained in the biotechnology ... "I am delighted to welcome Tom at this ...
(Date:1/15/2014)... Houston, TX (PRWEB) January 15, 2014 ... Alzheimer’s disease, and about 1 in 3 seniors will ... ( source ). These jaw-dropping figures have shocked many ... function and, hopefully, help prevent these tragic age-related cognitive ...
(Date:1/15/2014)... January 15, 2014 2013 was a ... Brain State Technologies®. They saw continued independent research led ... who were awarded a $1 million grant from the ... “Brain and Behavior” a peer reviewed journal, Amy Grant ...
(Date:1/14/2014)... Date: Friday, April 11, 2014 , Time: 6 p.m. ... Road, Warrington, Pa. , Details: The Hepatitis B ... a cure for hepatitis B and improving the quality of ... Ball on Friday, April 11 at Warrington Country Club in ...
Breaking Biology Technology:Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Biohack Pure Offers 5 Tips for Increasing Memory in 2014 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2
... , BUDAPEST, Hungary, October 9 ... General of the Commission of,the European Communities approved the ... Consortium (CancerGrid) to,TargetEx. , "This ... in,Hungary - "and an appreciation of our scientific potential ...
... Accuray Incorporated (Nasdaq: ARAY ), a global leader ... Analyst Meeting in Chicago, Ill., on Monday, November 2, 2009 ... with the 51st Annual Meeting of the American Society for ... the presentation will be available online from the Investor Relations ...
... 8 Deloitte Recap LLC (Recap) has launched the ... Deloitte, a new subscription service that provides analytical tools ... strategy, financial, legal, tax and R&D professionals. Each product ... needs to offer the right business intelligence tools for ...
Cached Biology Technology:TargetEx Leads the European Cancer Research Consortium 2Accuray Incorporated to Host Investor and Analyst Meeting at ASTRO 2Deloitte Recap Launches New Series of Biopharmaceutical Business Intelligence Tools 2
(Date:4/23/2014)... used to read quickly. It involves visual searching ... and/ or sentences. Similarly to humans, biological systems ... genetic information. Genes that need to be read ... encoding message, the easier it will be to ... de Cincia (IGC, Portugal) and Centre for Molecular ...
(Date:4/22/2014)... There,s a new secret to get your child to behave ... , A new Cornell study published in Eating Behaviors ... they had to bite with their front teeth such as ... rowdier than when these foods had been cut. ... as aggressive toward other kids," said Brian Wansink, Professor and ...
(Date:4/22/2014)... interim director of the University of Montana,s Wildlife Biology Program, ... Proceedings of the National Academy of Sciences on how ... ... Survey, the University of Washington, the Cary Institute of Ecosystem ... Northern Research Station examined 664 water samples collected every 10 ...
Breaking Biology News(10 mins):Cell division speed influences gene architecture 2Biting vs. chewing 2New research focuses on streamwater chemistry, landscape variation 2
... a summit on managing extreme events held last month in ... and the Willis Research Network, part of Willis Group Holdings, ... pledged to continue exploring activities aimed at increasing the physical ... 2011 has been a notable year for the high human ...
... ALBANY, N.Y., Oct. 18, 2011 When North Carolina,s "Laura,s ... state became the 8th state in the last year to ... of DUI laws from penalizing cars to required—and enforced—sobriety for ... is poised to join the movement, as state lawmakers look ...
... KENYA (14 October 2011) On a continent battered by ... released today from the World Agroforestry Centre documents an ... poor farmers in Southern Africa are now significantly boosting ... and shrubs to naturally fertilize their fields. The ...
Cached Biology News:US science academy and global reinsurance broker spark 2US science academy and global reinsurance broker spark 3US science academy and global reinsurance broker spark 4Are Alcohol Anklets the New Ignition Interlock? 2Are Alcohol Anklets the New Ignition Interlock? 3Are Alcohol Anklets the New Ignition Interlock? 4400,000 farmers in southern Africa using 'fertilizer trees' to improve food security 2400,000 farmers in southern Africa using 'fertilizer trees' to improve food security 3
For the quantitative determination of canine Interleukin 10,(IL-10) concentrations in cell culture supernates, canine serum,and plasma....
RAT ANTI RAT RT1Au (CLASS I POLYMORPHIC) Immunogen: AO lymphoid cells...
Human VEGF R Phycoerythrin Sampler (Cl 89106, 49560, 54733)...
MOUSE ANTI SIMIAN VIRUS 5:FITC Immunogen: Simian virus 5...
Biology Products: