Featured Research

from universities, journals, and other organizations

Printable sensors for cell phones and other devices?

Date:
March 31, 2010
Source:
Fraunhofer-Gesellschaft
Summary:
The cellphone is switched off but immediately springs into action at the point of a finger. It is not necessary to touch the display. This touchless control is made possible by a polymer sensor affixed to the cellphone which, like human skin, reacts to the tiniest fluctuations in temperature and differences in pressure and recognizes the finger as it approaches. The scenario is fictitious at present but could become reality in a few years time.

The sensor recognizes the finger's heat signal without being touched.
Credit: Copyright image/Joanneum Research Forschungsgesellschaft mbH

The cellphone is switched off but immediately springs into action at the point of a finger. It is not necessary to touch the display. This touchless control is made possible by a polymer sensor affixed to the cellphone which, like human skin, reacts to the tiniest fluctuations in temperature and differences in pressure and recognizes the finger as it approaches.

Related Articles


The scenario is fictitious at present but could become reality in a few years time thanks to the efforts of the research scientists involved in the EU project 3Plast, which stands for "Printable pyroelectrical and piezoelectrical large area sensor technology". The companies and institutes involved from industry and research have set themselves the goal of mass producing pressure and temperature sensors which can be cheaply printed onto plastic film and flexibly affixed to a wide range of everyday objects, such as electronic equipment. The 2.2 million euro funded project is coordinated by the Fraunhofer Institute for Silicate Research ISC in Würzburg. "The sensor consists of pyroelectrical and piezoelectrical polymers which can now be processed in high volumes by screen printing, for example. The sensor is combined with an organic transistor, which strengthens the sensor signal. It's strongest where the finger is," explains Gerhard Domann, who is in charge of the project. "The special thing about our sensor is that the transistor can also be printed."

The production of polymer sensors still poses a number of challenges. To produce printable transistors, the insulation materials have to be very thin. The experts at the ISC have, however, succeeded in producing an insulator which is only 100 nanometers thick. The first sensors have already been printed onto film. The research scientists are currently working on optimized transistors which can amplify rapid changes in temperature and pressure.

"By providing everyday objects with information about their environment -- for example whether a person is approaching -- by means of pressure and temperature sensors, we can create and market new devices that can be controlled just by pointing a finger," enthuses Domann. The research scientist envisions further applications for the technology in the automotive and construction industries as well as in robotics. "The project comes to an end in January 2011, but we think it will take a few more years before sensors can be printed on large surfaces."


Story Source:

The above story is based on materials provided by Fraunhofer-Gesellschaft. Note: Materials may be edited for content and length.


Cite This Page:

Fraunhofer-Gesellschaft. "Printable sensors for cell phones and other devices?." ScienceDaily. ScienceDaily, 31 March 2010. <www.sciencedaily.com/releases/2010/03/100322112120.htm>.
Fraunhofer-Gesellschaft. (2010, March 31). Printable sensors for cell phones and other devices?. ScienceDaily. Retrieved March 29, 2015 from www.sciencedaily.com/releases/2010/03/100322112120.htm
Fraunhofer-Gesellschaft. "Printable sensors for cell phones and other devices?." ScienceDaily. www.sciencedaily.com/releases/2010/03/100322112120.htm (accessed March 29, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Sunday, March 29, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Inspectors Found Faulty Work Before NYC Blast

Inspectors Found Faulty Work Before NYC Blast

AP (Mar. 27, 2015) — An hour before an apparent gas explosion sent flames soaring and debris flying at a Manhattan apartment building, injuring 19 people, utility company inspectors decided the work being done there was faulty. (March 27) Video provided by AP
Powered by NewsLook.com
Facebook Building Plane-Sized Drones For Global Internet

Facebook Building Plane-Sized Drones For Global Internet

Newsy (Mar. 27, 2015) — Facebook on Thursday revealed more details about its Internet-connected drone project. The drone is bigger than a 737, but lighter than a car. Video provided by Newsy
Powered by NewsLook.com
Robot Returns from International Space Station and Sets Two Guinness World Records

Robot Returns from International Space Station and Sets Two Guinness World Records

Reuters - Light News Video Online (Mar. 27, 2015) — The companion robot "Kirobo" returns to earth from the International Space Station and sets two Guinness World Records. Sharon Reich reports. Video provided by Reuters
Powered by NewsLook.com
Residents Witness Building Explosion, Collapse

Residents Witness Building Explosion, Collapse

AP (Mar. 26, 2015) — Witnesses recount the sites and sounds of a massive explosion and subsequent building collapse in the heart of Manhattan&apos;s trendy East Village on Thursday. (March 26) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins