Summary of Disposable electronic circuits produced with a T-shirt printer
This article describes a new technique by Nanyang Technological University to print disposable electronics on flexible surfaces like paper and plastic using a standard T-shirt printer. The method uses silver nanoparticles, carbon, and plastics to create circuits with resistors, transistors, and capacitors, including RFID tags and digital-to-analog converters. It is a fast, low-cost, and largely green process that requires no toxic chemicals.
Parts used in the Disposable Electronic Circuits:
- Silver nanoparticles
- Carbon
- Plastics
- Flexible materials (paper, plastic, aluminum foil)
- T-shirt printer
- Resistors
- Transistors
- Capacitors
- 4-bit digital-to-analog converter
- RFID tags
Someday soon, your milk carton may be able to tell you that the milk has spoiled, or your bandage may indicate that it needs changing. These and other things could be made possible by a new technique developed at Singapore’s Nanyang Technological University, which allows disposable electronics to be printed on a variety of surfaces, using an existing T-shirt printer.
Developed by a team led by Prof. Joseph Chang, the system incorporates building materials including “silver nanoparticles, carbon and plastics.” These are applied in layers to flexible materials such as paper, plastic and aluminum foil.
The researchers have printed off complete electrical circuits containing resistors, transistors and capacitors. These circuits have included a 4-bit digital-to-analog converter (typically used for converting digital signals into sound), and RFID tags.
According to Chang, the circuits can be printed on demand in minutes for a few cents each, and the system can be scaled to produce large or small electronics. He also states that it’s an entirely green process, requiring no toxic chemicals or oxidizing agents … although studies have indicated that silver nanoparticles aren’t entirely innocuous.
For more detail: Disposable electronic circuits produced with a T-shirt printer
- What surfaces can these disposable electronics be printed on?
The system allows printing on flexible materials such as paper, plastic, and aluminum foil. - How are the electronic circuits created in this project?
Circuits are created by applying layers of building materials like silver nanoparticles, carbon, and plastics using an existing T-shirt printer. - Can this technology produce complex components like RFID tags?
Yes, researchers have printed complete electrical circuits containing RFID tags, resistors, transistors, and capacitors. - Is this manufacturing process considered environmentally friendly?
According to Prof. Chang, it is an entirely green process requiring no toxic chemicals or oxidizing agents. - How much does it cost to print these circuits?
The circuits can be printed for a few cents each. - How long does it take to print these circuits on demand?
The circuits can be printed on demand in minutes. - Who led the development team for this technique?
The system was developed by a team led by Prof. Joseph Chang at Singapore's Nanyang Technological University. - Are there any safety concerns regarding the materials used?
While the process avoids toxic chemicals, studies indicate that silver nanoparticles aren't entirely innocuous.
