Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > IMECís spray-coating technique holds promise for cheap fully solution-processed organic solar cells

Figure 1 - (a) Schematic build-up of the organic solar cell, (b) SEM and (c) FIB/TEM cross sections of the polymer solar cell with a spray coated Ag top contact.
Figure 1 - (a) Schematic build-up of the organic solar cell, (b) SEM and (c) FIB/TEM cross sections of the polymer solar cell with a spray coated Ag top contact.

Abstract:
IMEC has demonstrated a fully solution-processed organic solar cell with a spray-coated active layer and a metal top contact spray-coated on top. The resulting cell shows power conversion efficiencies above 3%, a performance comparable to organic solar cells produced by spin coating of the organic layer and vacuum evaporation of the top contact metal. This is an important step towards producing organic solar cells with cheap and large-area processes.

IMECís spray-coating technique holds promise for cheap fully solution-processed organic solar cells

Leuven, Belgium | Posted on October 7th, 2009

Polymer-based (organic) solar cells hold the promise of low-cost production and a high throughput. However, this can only become true if all the layers of the cells can be deposited by solution-based, in-line compatible methods. IMEC's research now shows that spray-coating is a suitable deposition technique, and that it can be used to deposit all layers, including the metal top contact.

Spray-coating is a high-rate, large-area deposition technique that ensures an ideal coating on a variety of surfaces with different morphologies and topographies. It is frequently used for industrial coating and in-line deposition processes. In spray-coating systems, the ink is atomized at the nozzle by pressure or ultrasound and then directed toward the substrate by a gas. An added advantage of spray-coating is that it is efficient: compared to other techniques only a small amount of the solutions are wasted.

IMEC demonstrated that an active layer - a solution of P3HT and PCBM - deposited with spray-coating shows power conversion efficiencies above 3%, a performance which is comparable to that of spin-coated devices. And for the metal top contact, IMEC spray-coated a solution with silver nanoparticles. The challenges are to do this without dissolving the underlying layer, and without damaging it by the temperature needed to sinter the silver nanoparticles. IMEC demonstrated that spray-coating greatly reduces the damage to underlying layers compared to other techniques. It was also able to sinter the silver nanoparticles at 150įC, a temperature that is compatible with processing on flexible substrates.

Tom Aernouts, Teamleader Organic Photovolatics at IMEC: "R&D on organic solar cells has entered the stage where we can consider low-cost high-volume manufacturing, which is essential for the uptake of this technology by the industry. Our results show that IMEC has the expertise and knowhow to play an important role in organic photovoltaics R&D."

####

About IMEC
IMEC performs world-leading research in nanotechnology. IMEC leverages its scientific knowledge with the innovative power of its industrial partners. In ICT, healthcare and energy, IMEC delivers industry-relevant technology solutions. In a unique high-tech environment, IMECís international top talent is committed to providing the building blocks for a better life in a sustainable society.

IMEC is headquartered in Leuven, Belgium, and has offices in Belgium, the Netherlands, Taiwan, US, China and Japan. Its staff of more than 1,650 people include over 550 industrial residents and guest researchers. In 2008, IMEC's revenue (P&L) was 270 million euro.

IMEC is a registered trademark for the activities of IMEC International (a legal entity set up under Belgian law as a "stichting van openbaar nut"), IMEC in Belgium (IMEC vzw supported by the Flemish Government), stichting IMEC Nederland (IMEC-NL) and IMEC Taiwan Co. (IMEC-TW).

For more information, please click here

Contacts:
IMEC: Katrien Marent
Director of External Communications
T: +32 16 28 18 80
M: +32 474 30 28 66


Barbara Kalkis
Maestro Marketing & PR
T: +1 408 996 9975

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

U.S. Air Force Research Lab Taps IBM to Build Brain-Inspired AI Supercomputing System: Equal to 64 million neurons, new neurosynaptic supercomputing system will power complex AI tasks at unprecedented speed and energy efficiency June 23rd, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Tiny bubbles provide tremendous propulsion in new microparticles research-Ben-Gurion U. June 21st, 2017

Enhanced photocatalytic activity by Cu2O nanoparticles integrated H2Ti3O7 nanotubes June 21st, 2017

Products

STMicroelectronics Peps Up Booming Social-Fitness Scene with Smart Motion Sensors for Better Accuracy, Longer Battery Life, and Faster Time to Market January 2nd, 2017

Cutting-edge nanotechnologies are breaking into industries November 18th, 2016

STMicroelectronicsí Semiconductor Chips Contribute to Connected Toothbrush from Oral-B That Sees What You Donít: Microcontroller and Accelerometer help brushers clean their teeth more effectively October 4th, 2016

Particle Works launches range of high quality magnetic nanoparticles August 31st, 2016

Possible Futures

U.S. Air Force Research Lab Taps IBM to Build Brain-Inspired AI Supercomputing System: Equal to 64 million neurons, new neurosynaptic supercomputing system will power complex AI tasks at unprecedented speed and energy efficiency June 23rd, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Tiny bubbles provide tremendous propulsion in new microparticles research-Ben-Gurion U. June 21st, 2017

Researchers developed nanoparticle based contrast agent for dual modal imaging of cancer June 21st, 2017

Announcements

U.S. Air Force Research Lab Taps IBM to Build Brain-Inspired AI Supercomputing System: Equal to 64 million neurons, new neurosynaptic supercomputing system will power complex AI tasks at unprecedented speed and energy efficiency June 23rd, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Tiny bubbles provide tremendous propulsion in new microparticles research-Ben-Gurion U. June 21st, 2017

Enhanced photocatalytic activity by Cu2O nanoparticles integrated H2Ti3O7 nanotubes June 21st, 2017

Solar/Photovoltaic

Tiny bubbles provide tremendous propulsion in new microparticles research-Ben-Gurion U. June 21st, 2017

Enhanced photocatalytic activity by Cu2O nanoparticles integrated H2Ti3O7 nanotubes June 21st, 2017

Development of low-dimensional nanomaterials could revolutionize future technologies June 15th, 2017

In a project funded by the Austrian Science Fund FWF, the physicist Serdar SarıÁiftÁi investigates possible uses in electronics of the semiconductor properties of indigo pigment June 14th, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project