Subscribe to our free daily newsletters
  Solar Energy News  




Subscribe to our free daily newsletters



SOLAR DAILY
New world record for fullerene-free polymer solar cells
by Staff Writers
Linkoping, Sweden (SPX) Apr 21, 2016


Polymer solar cells manufactured using low-cost roll-to-roll printing technology, demonstrated here by professors Olle Inganas (right) and Shimelis Admassie. Image courtesy Stefan Jerrevang/Linkoping university. For a larger version of this image please go here.

Polymer solar cells can be even cheaper and more reliable thanks to a breakthrough by scientists at Linkoping University and the Chinese Academy of Sciences (CAS). This work is about avoiding costly and unstable fullerenes.

Polymer solar cells have in recent years emerged as a low cost alternative to silicon solar cells. In order to obtain high efficiency, fullerenes are usually required in polymer solar cells to separate charge carriers. However, fullerenes are unstable under illumination, and form large crystals at high temperatures.

Now, a team of chemists led by Professor Jianhui Hou at the CAS set a new world record for fullerene-free polymer solar cells by developing a unique combination of a polymer called PBDB-T and a small molecule called ITIC. With this combination, the sun's energy is converted with an efficiency of 11%, a value that strikes most solar cells with fullerenes, and all without fullerenes.

Feng Gao, together with his colleagues Olle Inganas and Deping Qian at Linkoping University, have characterized the loss spectroscopy of photovoltage (Voc), a key figure for solar cells, and proposed approaches to further improving the device performance.

The two research groups are now presenting their results in the high-profile journal Advanced Materials.

-We have demonstrated that it is possible to achieve a high efficiency without using fullerene, and that such solar cells are also highly stable to heat. Because solar cells are working under constant solar radiation, good thermal stability is very important, said Feng Gao, a physicist at the Department of Physics, Chemistry and Biology, Linkoping University.

-The combination of high efficiency and good thermal stability suggest that polymer solar cells, which can be easily manufactured using low-cost roll-to-roll printing technology, now come a step closer to commercialization, said Feng Gao.

Research paper: Fullerene-free polymer solar cells with over 11% efficiency and excellent thermal stability, by Wenchao Zhao, Deping Qian, Shaoqing Zhang, Sunsun Li, Olle Inganas, Feng Gao and Jianhui Hou. Advanced Materials 2016. DOI: 10.1002/adma.201600281


Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

.


Related Links
Linkoping University
All About Solar Energy at SolarDaily.com






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Previous Report
SOLAR DAILY
Verengo Solar Reaches 100 Megawatt Milestone
Torrance CA (SPX) Apr 18, 2016
Verengo has announced it has surpassed installation of 100 megawatts (MW) of rooftop solar systems since the company's founding in 2008. Verengo reached the 100 MW milestone by creating new platforms for growth through turnkey partnerships with new home builders and other companies involved in energy efficiency, noted CEO Dan Squiller. Other growth drivers include new advances in system de ... read more


SOLAR DAILY
Recyclable, sugar-derived foam as renewable alternative to polyurethanes

Enzyme leads scientists further down path to pumping oil from plants

Penn chemists lay groundwork for countless new, cleaner uses of methane

Dung, offal make clean gas at Costa Rica slaughterhouse

SOLAR DAILY
University of Sussex research brings 'smart hands' closer to reality

Scientists invent robotic 'artist' that spray paints giant murals

Humanoid robotics and computer avatars could help treat social disorders

Touching a robot can elicit physiological arousal in humans

SOLAR DAILY
Iowa puts faith in wind energy

Maryland praised for renewable energy efforts

Scotland generated most of its electricity in 2015 through renewables

RWE making bold moves in Scottish renewables

SOLAR DAILY
China auto sales up nearly 9% in March: industry group

VW says top executives ready to accept 'sharp cuts' in bonuses

VW managers in hot seat over bonus payments

Tesla recalls 2,700 Model X SUVs for seat problem

SOLAR DAILY
New magnetism research brings high-temp superconductivity applications closer

Physicists discover flaws in superconductor theory

Creation of Jupiter interior, a step towards room temp superconductivity

Oxygen key to containing coal ash contamination

SOLAR DAILY
France finalising UK nuclear plant deal: minister

Japan to dump tritium waste from Fukushima NPP

Nuclear plans in turmoil as French Minister admits serious doubts

Finnish nuclear power plant reactor shut down after radioactive leak

SOLAR DAILY
Economic development does mean a greater carbon footprint

Study shows best way to reduce energy consumption

US tech giants file brief in favor of Obama 'clean power' plan

Four killed at anti-China power plant protest in Bangladesh

SOLAR DAILY
Senegal environment ministry delegation arrested by Gambia

Activists appeal to EU over Polish logging of primeval forest

Study: Clear-cutting undermines carbon storage in forest floor

Protesters demand justice over death of Honduran activist




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement