3M shows photovoltaic film for windows

Oct 07, 2011 by Nancy Owano report

(PhysOrg.com) -- 3M drew press and viewer interest earlier this week at CEATEC with its show of special film that the company has developed to coat ordinary, existing windows and convert them into solar panels. The product was shown on curved and regular glass surfaces. This “windows-transformative” film is to debut next year. Not only does the panel generate energy in sunlight, but it also serves as a heat-blocking layer.

The film is made from an organic photovoltaic material and fits on windows easily to generate power and cut heat.

What is interesting about 3M's technology is its versatility. Claims are that it can generate power, behave as a coolant (absorbing over 90 percent of infrared light) and also protect windows from shattering.

The film's narrow, translucent green strips have gaps between them and are glued to windows in large patches.

Unlike solar paneling, the films are easy to install. An average person can install the films with no outside assistance, according to a senior manager, Yasuhiro Aoyagi.

While the 3M film for windows appears to be an easy answer to complex and costly solar panel alternatives, the 3M product is not as effective as solar paneling.

The film generates only 20 percent of the energy of a regular panel. A factoid frequently included in the reports from Tokyo about the 3M product has been that a square meter of the film can generate roughly enough electricity to charge an iPhone under peak sunlight.

No pricing details were available but expectations are that the film will be half to two-thirds the cost of .

When the film for does hit the Japan market next year, the 3M target user base will be government structures, commercial buildings, and fast-food restaurants.

3M is no stranger to state-of-the-art development efforts in film. The company snagged the world's first patent for window films in 1966. 3M has recognized expertise in both adhesives and multi-layer optical .

Earlier this year, 3M was awarded $4.4 million from the U.S. Department of Energy (DOE). The award, according to the company press release, was made under an initiative to reduce the total costs of photovoltaic solar energy systems by about 75 percent, so that they are cost-competitive with other forms of energy without subsidies.

Explore further: Tiny power plants hold promise for nuclear energy

add to favorites email to friend print save as pdf

Related Stories

Willis Tower goes solar

Mar 22, 2011

(PhysOrg.com) -- Do you know the Sears Tower? No, no you don't because for some time now it has been going by the much less famous name of the Willis Tower. While that bit of information may not be news to ...

Affordable solar technology

Jan 06, 2011

An innovative Oxford company has developed new solar cell technology that is manufactured from cheap, abundant, non-toxic and non-corrosive materials and can be scaled to any volume.

Nano-tuned solar cells

May 18, 2011

Solar cells that are more effective and cost less in production: Within the EU-project N2P (Nano to Product) researchers developed nano tuned surfaces to gain both.

Recommended for you

Obama launches measures to support solar energy in US

Apr 17, 2014

The White House Thursday announced a series of measures aimed at increasing solar energy production in the United States, particularly by encouraging the installation of solar panels in public spaces.

Tailored approach key to cookstove uptake

Apr 17, 2014

Worldwide, programs aiming to give safe, efficient cooking stoves to people in developing countries haven't had complete success—and local research has looked into why.

Wireless power transfer achieved at five-meter distance

Apr 17, 2014

The way electronic devices receive their power has changed tremendously over the past few decades, from wired to non-wired. Users today enjoy all kinds of wireless electronic gadgets including cell phones, ...

User comments : 4

Adjust slider to filter visible comments by rank

Display comments: newest first

Isaacsname
4.5 / 5 (2) Oct 07, 2011
I was just wondering if anybody's working on transparent PV.....3M, of course...

Why does this coating have to be constrained to a window treatment ? Can it be applied to existing PV systems ?
What about on your car, or house ?

Why not incorporate graphene, with it's newly discovered thermoelectric properties ?

http://www.physor...nse.html

An irregular surface would benefit from PV technology that responds to light gradients, right ?
Isaacsname
5 / 5 (1) Oct 07, 2011
Maybe it's just me, but it seems that things are heading in the direction of being " super-meta materials ". What happens when a material can be something like piezoelectric, transparent, PV, able to emit or absorb energy across a wide portion of the EM spectrum, etc, all at the same time ?

I mean imagine clothes that take light and heat, use that to internally regulate the interior temperature of the cloth , warming or cooling the wearer, at the same time harvesting energy from the person's movements, and photovoltaic/thermoelectric to boot.

Bye-bye thick winter coats and clothes, this could be thinner than saran wrap.

etc, etc. Exciting times to be alive.
Vendicar_Decarian
2.5 / 5 (2) Oct 07, 2011
On sale in Japan. America need not apply.
despinos
not rated yet Nov 07, 2011
This organic PV material converts the infrarred part of the spectrum. That's nice during hot weather, but what happens in the winter, when one wants the infrarred light to enter through the window and warm the room?

A design that allows a fast removal (total or partial, some kind of curtain) would be probably better than a fixed one.

Therefore, what about a textile (woven) material for curtains that includes 3M organic PVs?

More news stories

Under some LED bulbs whites aren't 'whiter than white'

For years, companies have been adding whiteners to laundry detergent, paints, plastics, paper and fabrics to make whites look "whiter than white," but now, with a switch away from incandescent and fluorescent lighting, different ...

Hackathon team's GoogolPlex gives Siri extra powers

(Phys.org) —Four freshmen at the University of Pennsylvania have taken Apple's personal assistant Siri to behave as a graduate-level executive assistant which, when asked, is capable of adjusting the temperature ...

Researchers uncover likely creator of Bitcoin

The primary author of the celebrated Bitcoin paper, and therefore probable creator of Bitcoin, is most likely Nick Szabo, a blogger and former George Washington University law professor, according to students ...

Continents may be a key feature of Super-Earths

Huge Earth-like planets that have both continents and oceans may be better at harboring extraterrestrial life than those that are water-only worlds. A new study gives hope for the possibility that many super-Earth ...

Researchers successfully clone adult human stem cells

(Phys.org) —An international team of researchers, led by Robert Lanza, of Advanced Cell Technology, has announced that they have performed the first successful cloning of adult human skin cells into stem ...