Stimuli-responsive photonic polymer coatings

Stumpel, Jelle E.; Broer, Dirk J.; Schenning, Albertus P. H. J.

doi:10.1039/c4cc05072j

Cited by 125 publications

(111 citation statements)

References 91 publications

(120 reference statements)

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“…This type of chiral structures has also been explored in the preparation of optical sensing devices for different types of stimuli [246,250,251]. A change in the molecular order, produced for example by temperature variation, can modify the cholesteric pitch and therefore the reflection wavelength becoming the system a temperature sensor.…”

Section: Inkjet Printing Of Self-organizing Materials: Liquid Crysmentioning

confidence: 99%

Inkjet Printing of Functional Materials for Optical and Photonic Applications

et al. 2016

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Inkjet printing, traditionally used in graphics, has been widely investigated as a valuable tool in the preparation of functional surfaces and devices. This review focuses on the use of inkjet printing technology for the manufacturing of different optical elements and photonic devices. The presented overview mainly surveys work done in the fabrication of micro-optical components such as microlenses, waveguides and integrated lasers; the manufacturing of large area light emitting diodes displays, liquid crystal displays and solar cells; as well as the preparation of liquid crystal and colloidal crystal based photonic devices working as lasers or optical sensors. Special emphasis is placed on reviewing the materials employed as well as in the relevance of inkjet in the manufacturing of the different devices showing in each of the revised technologies, main achievements, applications and challenges.

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Section: Inkjet Printing Of Self-organizing Materials: Liquid Crysmentioning

confidence: 99%

Inkjet Printing of Functional Materials for Optical and Photonic Applications

et al. 2016

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“…For In this review, the focus will be on surface relief gratings and topographies created by light in solid azobenzene-containing polymers. Light responsive coatings that contain other photochromic dyes (including spiropyrans or coumarins), gels, or hydrogels [22] are beyond the scope of this review. First, surface relief gratings based on linear azo polymers will be discussed and then topography changes in azo polymer networks will be presented.…”

Section: Light-induced Permanent Surface Relief Gratings In Linear Azmentioning

confidence: 99%

“…This contactless approach grants the possibility of locally [22,23], color [22,24], etc.). In order to make materials responsive to light, a light-sensitive molecule can be incorporated in the polymer [22]. A tremendous number of light-responsive trigger molecules exist [25].…”

Section: Introductionmentioning

confidence: 99%

Light-Triggered Formation of Surface Topographies in Azo Polymers

et al. 2017

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Properties such as friction, wettability and visual impact of polymer coatings are influenced by the surface topography. Therefore, control of the surface structure is of eminent importance to tuning its function. Photochromic azobenzene-containing polymers are an appealing class of coatings of which the surface topography is controllable by light. The topographies form without the use of a solvent, and can be designed to remain static or have dynamic properties, that is, be capable of reversibly switching between different states. The topographical changes can be induced by using linear azo polymers to produce surface-relief gratings. With the ability to address specific regions, interference patterns can imprint a variety of structures. These topographies can be used for nanopatterning, lithography or diffractive optics. For cross-linked polymer networks containing azobenzene moieties, the coatings can form topographies that disappear as soon as the light trigger is switched off. This allows the use of topography-forming coatings in a wide range of applications, ranging from optics to self-cleaning, robotics or haptics.

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“…[4][5][6] The azobenzene molecules allow for controlled switching, based on the trans-to-cis and cis-to-trans isomerization. These can be controlled by selectively illuminating the azobenzene's absorption bands, being 365 and 455 nm, respectively.…”

Section: Doi: 101002/admi201800810mentioning

confidence: 99%

Compliance‐Mediated Topographic Oscillation of Polarized Light Triggered Liquid Crystal Coating

Hendrikx

Sırma

Schenning

et al. 2018

Adv Materials Inter

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The ability to induce oscillating surface topographies in light‐responsive liquid crystal networks on‐demand by light is interesting for applications in soft robotics, self‐cleaning surfaces, and haptics. However, the common height of these surface features is in the range of tens of nanometer, which limits their applications. Here a photoresponsive liquid crystal network coating with a patterned director motive exhibiting surface features that oscillate dynamically when addressed by light with modulated polarization is reported. By utilizing a compliant intermediate layer, the surface topographies increase with a factor 10, from roughly 70–100 nm to 1 µm. This increase in topography height is accompanied by a superimposed dynamic oscillation with an amplitude of ≈100 nm. These values can be translated to a 16.7% average static strain with 3.3% oscillations with respect to the coating thickness. Moreover, utilizing the complying support increases the maximum rotation speeds with an in‐phase response from 2.5 up to 25° s−1. However, at this maximized rotation speed the oscillation amplitude decreases to about half of the initial value.

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Stimuli-responsive photonic polymer coatings

Cited by 125 publications

References 91 publications

Inkjet Printing of Functional Materials for Optical and Photonic Applications

Inkjet Printing of Functional Materials for Optical and Photonic Applications

Light-Triggered Formation of Surface Topographies in Azo Polymers

Compliance‐Mediated Topographic Oscillation of Polarized Light Triggered Liquid Crystal Coating

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