Photomechnical Materials. The mechanical properties (such as length, shape, and stiffness) of a photomechanical material change when exposed to light. Doc Brown's Chemistry Revision Notes - Smart Materials and Materials Science. Part 7 PIEZOELECTRIC EFFECT (PIEZOELECTRIC MATERIALS) and. scopic deformations in materials that contain the photoactive molecules. Such photomechanical materials represent a way to directly convert.
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Organic molecules can transform photons into Angstrom-scale motions by undergoing photochemical reactions. Ordered media, for example, liquid crystals or molecular crystals, can align these molecular-scale motions to produce motion on much larger micron to millimeter length scales.
In this Review, we describe the basic principles that underlie organic photomechanical materials, starting with a brief survey of molecular photochromic systems that have been used as elements of photomechanical materials. For photomechanical materials, automobile designers could use such materials to continually change the shape of a model to test its aerodynamics or aesthetics; a chair could be made to automatically change shape photomechanical materials accommodate any body type; and an exact replica of an individual could be made from information sent from a distance.
Having your Photomechanical materials Joe's three-dimensional solid-body facsimile sitting next to you in casual conversation would be far more advanced than picture phones, which transmit only two-dimensional images. Other applications would include photomechanical materials cancellation wallpaper, reconfigurable air craft wings, ultra-stable platforms for precision manufacturing or characterization, and reconfigurable optical filters.
Kuzyk, Photomechanical materials Fiber Optics: Materials Challenges Since the end materials are far from reality, present work seeks to take the initial steps by setting a series of milestones that would demonstrate the feasibility of this totally new material concept.
The approach photomechanical materials by researchers is hierarchical in nature, which begins with a demonstration of the fundamental building blocks, followed by studies of how a small number of the building blocks interact with each other when interconnected with light.
Photomechanical effect - Wikipedia
The goal of such studies studies culminates with the development of fabrication methods that can be used photomechanical materials make a bulk material from a collection of microscopic building blocks.
The fundamental physics underlying these materials and photomechanical materials is, for the most part, in place; that is, photomechanical materials exist, interferometers with photomechanical materials can be built into polymer fibers, and a photomechanical materials of gratings can be written into a fiber to make a network of interacting units.
This piezo-electric effect can be used to detect stress and deformation in solid materials. The effect can used in general to detect pressure changes in gases or liquids i.
The piezoelectric effect is used in lighters.