Recently, the research team led by Liu Jing, a researcher at the Institute of Physics and Chemistry of the Chinese Academy of Sciences, succeeded in developing a prototype prototype of desktop automatic printing equipment that directly generates paper-based functional electronic circuits and even 3D electromechanical devices at room temperature after proposing liquid metal printing electronics New technologies have taken a crucial step towards popularization.
With this system, simply set the control program in advance, you can automatically print out electronic devices such as circuits and antennas on ordinary coated paper and achieve packaging; especially by setting up a stacking combination program between various conductive or insulating inks , It can also realize the direct printing of 3D electromechanical composite system, this feature is not available in the existing technology.
3D printing is the current hotspot in the world, but most of the existing methods can only print the model itself, and it is not easy to complete the manufacturing needs of devices including electronic functions. It can print electrical systems and even mechanical and packaging components at room temperature. The liquid metal printed electronics brings new hope for this.
As a new frontier in the field of electronics manufacturing, WYSIWYG liquid metal printed electronics has opened up a convenient and fast way to achieve universal application for the direct manufacture of flexible electronics at room temperature. A series of basic work in the early stage of the laboratory showed the advantages of this writing technique. However, to make the technology fly into the "ordinary people's home", we must develop a wide-ranging and affordable desktop automatic printing system; at the same time, if it can be directly used portable, foldable, low-cost, easily degradable, recyclable Paper as an electronic printing substrate is bound to further broaden the application level of technology.
Based on the consideration of the characteristics of the above needs, the team of the Institute of Physics and Chemistry realized a basic breakthrough in electronic printing technology by tackling a series of key scientific issues.
The establishment of liquid metal desktop electromechanical printing system technology actually stems from the long-term efforts of the laboratory. As early as more than 10 years ago, Liu Jing led the team to conduct research on room temperature metal fluids that were little known at home and abroad at that time, and successively proposed a series of original technologies with significant application value in the fields of information, energy and medical treatment.
Especially in recent years, the group has proposed a room temperature liquid metal printed electronics method that is expected to change the traditional electronic circuit manufacturing rules, forming a series of important technologies and patents, such as biological surface medical electronic circuit direct writing technology, transparent conductive film technology, paper Printable micro temperature sensor technology, flexible circuit direct writing technology, etc. At present, this method has been named dream ink technology; the corresponding work has caused great repercussions at home and abroad.
In general, the successful realization of the desktop printing method based on DREAMInk and the extended printing tools have created conditions for the personalized manufacturing of electronic devices, which may affect the future development mode of electronic technology. At the same time, the PCP concept discussed in the study once again shows that paper can be used as a carrier for text and can also integrate many electronic components, which helps to promote the popularity of DIY electronics.
At present, although the price of the laboratory printing system is still high, with the development of technology, its cost can be reduced to be accepted by ordinary consumers. At that time, even those without electronic design experience could use the control software preset in the computer to print out the terminal electronic devices they needed and even assemble electromechanical systems, such as electronic greeting cards, integrated circuits on paper, displays, and billboards. , Smart fabrics, robots, and even photovoltaic cell arrays.
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