While in most stimulus-responsive materials, the result is limited to a change in their certain physical/chemical properties, stimulus-responsive shape memory materials (SMMs) are able to recover their original shape, after being quasi-plastically distorted.
After being severely and quasi-plastically distorted, shape memory materials (SMMs) are able to recover their original shape at the presence of the right stimulus.
The reversibility of shape memory materials and their feasibility to be fabricated using three-dimensional (3D) printing are summarized and critically analyzed.
This paper presents a review on the mechanisms of shape memory materials that have led to 4D printing, current findings regarding 4D printing in alloys and polymers, and their respective limitations.
Then the principles of operation and recent advances in thin film transistors, memory for data storage, inorganic and organic light-emitting diodes (OLEDs), organic and inorganic thin film SCs, thermoelectric devices, chemiresistive sensors, mechanical actuators, and shape memory materials (SMMs) will be reviewed, to provide insight for future interdisciplinary research in thin film devices.
Utilization of the CuAAC reaction to form shape memory materials opens a range of possibilities and behaviors that are not readily achieved in other shape memory materials such as (meth) acrylates, thiol-ene, thiol-Michael, and poly(caprolactone) based shape memory materials.
This paper not only reports two novel memory materials but also provided some guiding principle to the design of organic based memory devices.
This microscale integration was made via orthogonal photolithography processes using fluorinated photoresist and solvents and was achieved without causing damage to the underlying organic memory materials.
These include but are not limited to ferroelectric/piezoelectric ceramics, shape memory materials (SMMs), electroactive polymers, conjugated conducting polymers, and molecular semiconductors.
