Industry News




 

04/25/2011

Solar Power Catches a Virus

 
Solar-Power-Virus

Researchers at MIT have found a significant way to improve solar-cell efficiency, utilizing the aid of tiny genetically modified viruses to perform assembly work at the microscopic level. 

It may sound like a bad sci-fi story, but these viral improvements have allowed the effective use of nanotubes in solar power technology.

Previous research involving nanotubes and solar efficiency ran into two problems.   The first issue was that the making of carbon nanotubes generally produces a mix of two types, some of which act as semiconductors (sometimes allowing an electric current to flow, sometimes not) or metals (which act like wires, allowing current to flow easily).

The new research, for the first time, shows that the effects of these two types tend to be different, because the semiconducting nanotubes can enhance the performance of solar cells, but the metallic ones have the opposite effect.

The second issue was that nanotubes tend to clump together – reducing their effectiveness.

And that’s where the strange solution of the virus comes in.  Graduate students Xiangnan Dang and Hyunjung Yi — working with Angela Belcher, the W. M. Keck Professor of Energy, and several other researchers — found that a genetically engineered version of a virus called M13, which normally infects bacteria, can be used to control the arrangement of the nanotubes on a surface, keeping the tubes separate so they can’t short out the circuits, and keeping the tubes apart so they don’t clump.

The system the researchers tested used a type of solar cell known as dye-sensitized solar cells, a lightweight and inexpensive type where the active layer is composed of titanium dioxide, rather than the silicon used in conventional solar cells.

The same technique could be applied to other types as well, including quantum-dot and organic solar cells. In tests, adding the virus-built structures enhanced the power conversion efficiency to 10.6 percent from 8 percent — almost a one-third improvement.

This substantial improvement takes place even though the viruses and the nanotubes make up only 0.1 percent by weight of the finished cell.

This process adds only a single, simple step to standard solar-cell manufacturing processes, and should be ready to implement rapidly.  Will a virus pave the way for solar-cell efficiency?

California Solar Thermal Power Plant

Walmart Expands Solar Power Renewable Energy Efforts

The Surges of Green Power

 


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Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

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Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.

 

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Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.

 


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.

 

Replace core drilling with Connectrac In-Carpet and On-Floor Wireways, the proven connectivity solution in open interior spaces of all kinds. These elegant low-profile wireways are great for AV / telecom connectivity wherever it’s needed.

 

Add highly responsive multi-zone comfort to any building project, in any climate. Our CITY MULTI H2i R2- and Y-Series VRF systems give you flexibility to fit the needs of any building. Enjoy 100% heating capacity at 0°F outdoor ambient, and 85% heating capacity at -13°F outdoor ambient.  For more information, log on to www.mitsubishipro.com


 
10/20/2014

The EPA looks to help improve energy and air quality during educational facility renovations. 

10/17/2014

Agency says current regulations "don't protect worker health".

10/16/2014

Scientists have developed LED bulbs free of rare earth metals.

10/15/2014

Survey shows a decrease in employees coming to work sick.

10/14/2014

New efficiency ratings available for apartment units

10/10/2014

New code to increase commercial building efficiency.

10/09/2014

Take charge of your electricity bill with these quick tips.

10/08/2014

Illumination improvements take the top award for physics

10/07/2014

Study shows equipment improvements could boost efficiency. 

10/06/2014

New device integrates batteries into solar cell design.

10/03/2014

The switch to green products comes to healthcare facilities.

10/01/2014

Photovoltaic installations serve nearly 2.7 million students

09/30/2014

Incidence of fires and property loss down from 2012

09/29/2014

Academic achievement tied to responsible reporting habits

09/26/2014

Survey shows people more careful, less satisfied in public washrooms.

09/25/2014

A new study shows that switching natural gas for coal will not significantly reduce the amount of CO2 emissions being produced. 

09/24/2014

A new study shows the carbon emission reduction policies individual states have adopted are yielding results.

09/23/2014

A recent survey of industry professionals indicates that investment in energy efficiency projects will increase over the next year.

09/22/2014

Fort Carson in Colorado is well on its way to reaching the goal of net-zero energy by 2020. 

09/19/2014

New regulations from the DOE would improve commercial air conditioner efficiency by as much as 30%. 

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