Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Paper with good sound quality

02.05.2012
At drupa print media fair, the Institute for Print and Media Technology of Chemnitz University of Technology presents printed loudspeakers on paper substrate and a solar tree with printed solar cells
At drupa, the world’s largest fair on print media technology, which takes place from 3 to 16 May 2012 in Düsseldorf, the Institute for Print and Media Technology of Chemnitz University of Technology (pmTUC) presents new research results, which truly make you prick up your ears: Loudspeakers that have been printed with flexography on standard paper. The R&D group of Prof. Dr. Arved Hübler, head of pmTUC, is co-exhibitor of press manufacturer Windmöller & Hölscher KG (Lengerich) and can be found in hall 15, booth A41/1.

The printed paper loudspeaker is connected to an audio amplifier like a conventional loudspeaker. “Frequency response and hence sound quality are very good and the paper is surprisingly loud. Just the bass of the paper-based loudspeaker is a bit weak”, explains Dr. Georg Schmidt, senior researcher at pmTUC. The thin loudspeakers, which are printed in the laboratories of pmTUC, contain several layers of a conductive organic polymer and a piezoactive layer. According to project assistant Maxi Bellmann the loudspeakers are astonishingly robust and can be produced in a very cheap way as mass printing methods are used. The bottom side of the paper loudspeaker provides unused space on which coloured messages can be printed.

Prof. Hübler expects a broad range of new applications: The paper loudspeakers could, for instance, be integrated into common print products. As such, they offer an enormous potential for the advertising segment. “In addition, sound wallpapers and purely technical applications, e.g., distance sensors, are possible, because the papers are also active in the ultrasound range”, says Hübler and adds: “As printing allows for different formats and forms, there is the possibility to influence the generated sound waves.” The loudspeaker of pmTUC was realised within the framework of the project Plastic Acoustics (PACU), which is funded by the Federal Ministry of Education and Research and includes the following project partners: Robert Bosch GmbH (Stuttgart), Heraeus Clevios GmbH (Leverkusen), X-Spex GmbH (Berlin), and Fraunhofer Institute for Electronic Nano Systems ENAS (Chemnitz).

Electricity that grows on trees

Besides printed loudspeakers, pmTUC presents innovative application scenarios for printed solar cells. “Half a year ago, we introduced the world’s first 3PV technology – printed paper photovoltaics, says Hübler. At drupa, the Chemnitz researchers exhibit a solar tree with 50 printed solar leaves. Similar to an ordinary tree, the leaves that face the sun collect energy. They are connected with snap fasteners. Via a cable in the hollow tree trunk the solar electricity supplies a battery.

“If you stand below the tree and look up to the shade-giving leaves of the solar tree, you can see that the bottom side of the leaves is printed with advertisements”, explains Hübler and adds with a twinkle in his eye: “That’s even better than in nature.” Because according to Hübler, the advertising segment is the driving force of the printing industry: “As soon as the customer realises that it is better to not throw advertising that contains a solar cell away, but rather keep it to generate electricity for some time, the printed solar cell will become an unbeatable advertising carrier with a sustainable image”, reports the professor from Chemnitz. Hübler does not only believe that the 3PV technology, developed at Chemnitz University of Technology, will make a contribution to global power supplies in the future, but also that 3PV will bring about the breakthrough of printed electronics.

In his book “print becomes electronics”, which is published in English and German on occasion of drupa, Hübler analyses the backgrounds of this development and explains the transition that he expects to take place in the traditional graphic arts industry. According to Hübler, electronic media and conventional print media will increasingly merge in the future: “A large part of electronics will be printed, and most print media will be electronic.” The book is available at drupa and upon request from pmTUC.

Contact:
Prof. Dr. Arved Hübler, phone +49(0)371 531-23610, email pmhuebler@mb.tu-chemnitz.de, and Sylvia Strauß, phone +49(0)371 531-35501, email sylvia.strauss@mb.tu-chemnitz.de
Homepage: http://www.tu-chemnitz.de/pm
3PV technology: http://www.pppv.de

Katharina Thehos | Technische Universität Chemnitz
Further information:
http://www.tu-chemnitz.de/pm
http://www.pppv.de

More articles from Trade Fair News:

nachricht COMPAMED 2016 connected medical devices and people
23.11.2016 | IVAM Fachverband für Mikrotechnik

nachricht Successfully transferring Industrie 4.0 into reality
21.11.2016 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

Im Focus: Fraunhofer ISE Develops Highly Compact, High Frequency DC/DC Converter for Aviation

The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

UTSA study describes new minimally invasive device to treat cancer and other illnesses

02.12.2016 | Medical Engineering

Plasma-zapping process could yield trans fat-free soybean oil product

02.12.2016 | Agricultural and Forestry Science

What do Netflix, Google and planetary systems have in common?

02.12.2016 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>