Dan Zhao and Simone Fabiano at the Laboratory of Organic Electronics have created a thermoelectric organic transistor. A temperature rise of a single degree is sufficient to cause a detectable current modulation in the transistor.
The results have now been published in Nature Communications.
“We are the first in the world to present a logic circuit, in this case a transistor, that is controlled by a heat signal instead of an electrical signal,” states Professor Xavier Crispin of the Laboratory of Organic Electronics, Linköping University.
Possibilities for new applications
The heat-driven transistor opens the possibility of many new applications such as detecting small temperature differences, and using functional medical dressings in which the healing process can be monitored.
It is also possible to produce circuits controlled by the heat present in infrared light, for use in heat cameras and other applications. The high sensitivity to heat, 100 times greater than traditional thermoelectric materials, means that a single connector from the heat-sensitive electrolyte, which acts as sensor, to the transistor circuit is sufficient. One sensor can be combined with one transistor to create a “smart pixel”.
A matrix of smart pixels can then be used, for example, instead of the sensors that are currently used to detect infrared radiation in heat cameras. With more developments, the new technology can potentially enable a new heat camera in your mobile phone at a low cost, since the materials required are neither expensive, rare nor hazardous.
The heat-driven transistor builds on research that led to a supercapacitor being produced a year ago, charged by the sun’s rays. In the capacitor, heat is converted to electricity, which can then be stored in the capacitor until it is needed.
The researchers at the Laboratory of Organic Electronics had searched among conducting polymers and produced a liquid electrolyte with a 100 times greater ability to convert a temperature gradient to electric voltage than the electrolytes previously used. The liquid electrolyte consists of ions and conducting polymer molecules. The positively charged ions are small and move rapidly, while the negatively charged polymer molecules are large and heavy. When one side is heated, the small ions move rapidly towards the cold side and a voltage difference arises.
“When we had shown that the capacitor worked, we started to look for other applications of the new electrolyte,” says Xavier Crispin.
Dan Zhao, principal research engineer, and Simone Fabiano, senior lecturer, have shown, after many hours in the laboratory, that it is fully possible to build electronic circuits that are controlled by a heat signal.
Learn more: The world’s first heat-driven transistor
[osd_subscribe categories=’thermoelectric-organic-transistor’ placeholder=’Email Address’ button_text=’Subscribe Now for any new posts on the topic “THERMOELECTRIC ORGANIC TRANSISTOR”‘]
Receive an email update when we add a new THERMOELECTRIC ORGANIC TRANSISTOR article.
The Latest on: Thermoelectric organic transistor
via Google News
The Latest on: Thermoelectric organic transistor
- A seemingly unattainable energy transitionon November 23, 2021 at 4:01 pm
Researchers have managed to address an unusual energy transition in a semiconductor. Researchers from Basel and Bochum have succeeded in addressing an apparently unattainable energy transition in ...
- A new way to generate electricity from waste heat: Using an antiferromagnet for solid deviceson November 23, 2021 at 4:01 pm
The commercially available thermoelectric generators based on the Seebeck effect are complex assemblies built from small blocks of n- and p-type semiconductor materials. Unlike ferromagnets ...
- Electronics & Semiconductors newson November 9, 2021 at 4:34 pm
Taiwanese chip giant TSMC will partner with Sony on a new $7 billion plant in Japan, the firms announced Tuesday, as an ongoing global semiconductor shortage squeezes the production of everything ...
- Researchers Simplify Design of OLEDs for Easy Printingon October 18, 2021 at 5:00 pm
OLEDs are different from LEDs in that they use organic compounds based on carbon as a main component rather than the semiconductor material gallium. However, OLEDs lack the same performance and ...
- Materials Chemistry Divisionon December 21, 2020 at 5:25 am
Stephen Yeates group, where she worked on thin film organic transistors and sensors ... Most recently, this has focused on thermoelectric waste heat recovery, including research into intermetallics, ...
- CLASS 257, ACTIVE SOLID-STATE DEVICES (E.G.,TRANSISTORS, SOLID-STATE DIODES)on September 6, 2020 at 6:48 pm
See References to Other Classes, below, for Classes related to Class 257 because they provide for active solid-state electronic devices structures with a specified use, e.g., Class 136, Batteries: ...
- Electricity from the Sunon August 1, 2020 at 9:28 am
The horizon for new innovative products in this sector also includes solar cells that are sensitized with inorganic or organic dyes ... because this is not a semiconductor that absorbs light like ...
- Nanotechnology Research - Universitieson October 29, 2017 at 11:22 pm
thermoelectric nancrystals, core/shell nanocrystals, hollow nanocrystals, Janus nanocrystals, nanopores, nanotubes, hierarchically structured and assembled materials, and semiconductor ...
- Nanotechnology in Energyon September 9, 2017 at 7:43 am
Here, for example, nanotechnologies could contribute to the optimization of the layer design and the morphology of organic semiconductor mixtures in ... and the operation of mobile electronics.
via Bing News