Navigation Links
Evolution inspires more efficient solar cell design
Date:1/25/2013

The sun's energy is virtually limitless, but harnessing its electricity with today's single-crystal silicon solar cells is extremely expensive 10 times pricier than coal, according to some estimates. Organic solar cells polymer solar cells that use organic materials to absorb light and convert it into electricity could be a solution, but current designs suffer because polymers have less-than-optimal electrical properties.

Researchers at Northwestern University have now developed a new design for organic solar cells that could lead to more efficient, less expensive solar power. Instead of attempting to increase efficiency by altering the thickness of the solar cell's polymer layer a tactic that has preciously garnered mixed results the researchers sought to design the geometric pattern of the scattering layer to maximize the amount of time light remained trapped within the cell.

Using a mathematical search algorithm based on natural evolution, the researchers pinpointed a specific geometrical pattern that is optimal for capturing and holding light in thin-cell organic solar cells.

The resulting design exhibited a three-fold increase over the Yablonovitch Limit, a thermodynamic limit developed in the 1980s that statistically describes how long a photon can be trapped in a semiconductor.

A paper about the results, "Highly Efficient Light-Trapping Structure Design Inspired by Natural Evolution," was published January 3 in Scientific Reports, a publication of Nature.

In the newly designed organic solar cell, light first enters a 100-nanometer-thick "scattering layer," a geometrically-patterned dielectric layer designed to maximize the amount of light transmitted into the cell. The light is then transmitted to the active layer, where it is converted into electricity.

"We wanted to determine the geometry for the scattering layer that would give us optimal performance," said Cheng Sun, assistant
'/>"/>

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

Page: 1 2

Related biology technology :

1. Brain State Technologies to Host Open House and Demonstrate Their Revolutionary Technology
2. Crisalix Awarded as a Leading Life Science Company that is Revolutionizing the Medical Industry
3. Research discovery could revolutionize semiconductor manufacture
4. Spanish scientists design a revolutionary data storage device
5. Revolutionary Tetrapod Quantum Dot Synthesis US Patent Granted
6. New UCLA Engineering research center to revolutionize nanoscale electromagnetic devices
7. Researchers peek at the early evolution of sex chromosomes
8. Discovered Evolution of Genomic Sequences -- from Ocean Archaea to Brain Cancer -- Leads to New Synthetic Replikin Vaccines for Infectious Diseases and Cancer
9. Evolution Issue of the Month 2. Natural Selection--Not the Best Idea Anyone Ever Had
10. Martha Stewart Reveals the Secret Behind her Radiant Skin is Revolutionary Anti-aging BIOEFFECT EGF SERUM
11. New Revolutionary Femoral Access Site Closure Device Shows Unparalleled Efficacy, Safety & Ease of Use, in a Wide Range of Patients Including Patients With a Challenging Anatomy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... Research and Markets has ... Industry Report 2014" report to their offering. ... 2014 is a professional and in-depth study on ... The report provides a basic overview ... industry chain structure. The N-acetylcysteine market analysis is ...
(Date:9/18/2014)... 2014 Research and Markets has ... (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends ... The global companion diagnostics market is ... 2014 to 2019. Factors such as rising need for ... diagnostics by the pharmaceutical industry, support from regulatory authorities, ...
(Date:9/18/2014)... ST. LOUIS , Sept. 18, 2014  U.S. ... portfolio by signing an exclusive license for technology developed ... to control gene expression in plants, including for applications ... species. The technology was developed under ... science officer at Kultevat and former president of the ...
(Date:9/18/2014)... 2014  Neogen Corporation (Nasdaq: NEOG ) ... agreement with Merck Animal Health to market Neogen,s Igenity ... Igenity Dairy Heifer Program consists of genomic tests that ... potential of replacement dairy heifers. The genomic tests can ... is an excellent tool in the decision-making process for ...
Breaking Biology Technology:Global N-acetylcysteine Industry Report 2014 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3Kultevat obtains license of gene switch technology 2Merck Animal Health to market Neogen's dairy genomic program 2
... Life Sciences, Inc. (NASDAQ: CALP ) today ... a leading high throughput sequencing and analysis center based ... Site. TGAC will implement Caliper,s NGS Bundle, which includes ... providing TGAC with a suite of automation and microfluidic ...
... HCCS (Health Care Compliance Strategies, Inc.), ... competency training and tracking solutions, today announced the ... , a web-based system for the management and ... built this comprehensive tool in response to tighter ...
... 2011 Micell Technologies, Inc. today announced that ... EuroPCR conference in Paris, France on May 18, ... Novel Third Generation DES with a Fully-absorbable Coating ... Coronary Stent System ("MiStent DES") is an ultra-thin, ...
Cached Biology Technology:TGAC Selects Caliper Solutions for High Throughput Sequencing Pipeline 2Conflict of Interest Disclosures Tool Updated 2Micell Technologies Reports Preclinical Data for MiStentâ„¢ Drug-Eluting Coronary Stent to be Presented at EuroPCR 2Micell Technologies Reports Preclinical Data for MiStentâ„¢ Drug-Eluting Coronary Stent to be Presented at EuroPCR 3
(Date:9/18/2014)... to undertake jaunts into the countryside each year could come ... century, according to new research. , Climate change could postpone ... as summer temperatures linger later into the year, Princeton University ... . For instance, the paper birch a popular foliage ... could change color one to three weeks later by the ...
(Date:9/18/2014)... genetic information is stored in DNA, tiny strands of ... our bodies. To express this genetic data, our DNA ... instructions into proteins that perform tasks in our cells. ... type of RNA molecule. Unlike all other known RNAs, ... Although circRNA molecules are abundant, little has been known ...
(Date:9/18/2014)... CHANDLER, AZ, Sept. 18, 2014 -- Arizona turned its ... in just a few short months, earning it the first-ever ... , The March of Dimes presented Will Humble, M.P.H., Arizona,s ... ceremony held here today. Mr. Humble established a policy of ... hospitals to send newborn blood samples to the lab for ...
Breaking Biology News(10 mins):Fall foliage season may be later, but longer on warmer Earth 2Fall foliage season may be later, but longer on warmer Earth 3Fall foliage season may be later, but longer on warmer Earth 4Scientists find how mysterious 'circular RNA' is formed, claim muscular dystrophy link 2March of Dimes honors Arizona with first-ever newborn screening award 2March of Dimes honors Arizona with first-ever newborn screening award 3
... Two USC scientists have developed an algorithm that could help ... be useful to researchers of all stripes. Andrew Smith, ... Arts and Sciences, developed the algorithm along with USC graduate ... more DNA, to be published in Nature Methods ...
... found a new way to accelerate a workhorse instrument that ... and point to new drugs for treating a wide range ... used in muscle, brain, blood and hormones. If the genes ... hammers and tongs of life. Proteins are not only ...
... articles posted online ahead of print on 20 Feb. 2013 ... on the Exmouth Sub-basin, Australia; the West Kunlun Range, northern ... hot springs of Colorado. The 12 new papers cover a ... to Earth,s surface, A challenge to climate change and biotic ...
Cached Biology News:Taking the gamble out of DNA sequencing 2Analytical trick accelerates protein studies 2Analytical trick accelerates protein studies 3Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers 2Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers 3Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers 4Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers 5Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers 6Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers 7Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers 8Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers 9Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers 10Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers 11
HP 1 alpha Immunogen: Synthetic peptide between amino acids 1-100 of the human HP 1 alpha protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
... subcloning of gene in baculoviral expression ... and plaque purification of ten clones, ... for one clone, protein expression and ... culture. Expected yield and timeline: 1-4 ...
... Custom Synthesis Service provides you ... to knockdown any gene. We ... base pairs with terminal dT ... other lengths of your choice. ...
EDG-1 Western blot control Source: Cell Lysate Application: Western Blotting Control...
Biology Products: