Sunlight-driven eco-friendly smart curtain based on infrared responsive graphene oxide-polymer photoactuators

Leeladhar,; Raturi, Parul; Singh, J. P.

doi:10.1038/s41598-018-21871-3

Cited by 42 publications

(26 citation statements)

References 54 publications

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“…This is due to their huge potential as functional dyes towards a number of practical applications like organic photovoltaics, photomedicine, and molecular imaging . In the field of organic photovoltaics, dyes capable of absorbing NIR radiation are crucial for harvesting the energy of incident solar radiation, since nearly half of it falls in the visible to NIR range In photomedical applications like photodynamic therapy (PDT), the fluorescent organic dye has a dual role. It acts as a fluorescent probe for imaging of the tumor in vivo , followed by its photosensitizing action towards tumor destruction .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Green Emitting Multi‐substituted Dibenzodioxins and Related Heteroacenes and Computational Investigation of Substituent Effects on Emission Spectra

et al. 2020

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Push‐pull dibenzodioxins with electron withdrawing and donating groups were prepared in good yields through a short and simple synthesis. Strong green emission above 500 nm occurs in those derivatives where there is maximum charge transfer to the most electron deficit terephthalonitrile ring, from proximal cyclic amino donor groups. Theoretical calculations support experimental findings through evaluation of excited state properties. In molecules with a nitro group, the excited state localizes electron density exclusively onto it and twisted nitro geometry was also found. In effect, electronic charge cannot relocate into the molecular plane, rendering them non‐fluorescent. Also, studies on the fluorescent derivatives show that best emission would occur when the donor moiety contains a saturated cyclic amino ring and the amines are 2°. Overall, our study establishes structure‐property guidelines and limits on dibenzodioxin functionalization towards preparing fluorescent derivatives of the same.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Green Emitting Multi‐substituted Dibenzodioxins and Related Heteroacenes and Computational Investigation of Substituent Effects on Emission Spectra

et al. 2020

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“…Furthermore, Gr/PC composites have demonstrated their use for potential applications in smart materials. Leeladhar and Singh [114] prepared a GO/PC composite material with a double-layer structure that exhibited a smart response to infrared light. erefore, the composite material was able to act as a light actuator, 8 Advances in Materials Science and Engineering which could be used in applications such as sunlight-driven curtains, infrared light-driven curtains, and boxes that automatically fold upon exposure to light.…”

Section: Applications Of Graphene/polymer Composite Materialsmentioning

confidence: 99%

A Review on the Contemporary Development of Composite Materials Comprising Graphene/Graphene Derivatives

Long

Weng

2020

Advances in Materials Science and Engineering

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As two-dimensional materials with a high specific surface area, strength, and electrical and thermal conductivity, graphene (Gr) and its derivatives have great application prospects in various fields such as structural reinforcement, energy storage, optics, and electrical and thermal conductivity. However, the current preparation method of Gr is complicated and expensive. Its preparation cost can be reduced using Gr composites that include inorganic materials or other polymers. Composite materials comprising Gr and inorganic materials are generally prepared using sinter molding, chemical reduction, or chemical deposition. Gr should be able to mitigate several of the defects resulting from inorganic materials, including their poor toughness, small specific capacity, and low photoelectric conversion rate. The mitigation of these defects should result in the expansion of the applications of Gr composites for use in capacitors, catalysts, and sensors, among other devices. Although solution blending or in situ polymerization produces a relatively good mixing effect, in general, melt blending is used in the large-scale processing of Gr composites with polymer materials. Gr can be used to partially mitigate several weaknesses of polymer materials, including their low strength, poor electrical and thermal conductivities, and poor isolation performance, and expand the applications of Gr composites for use in electrical and thermal conductive materials and functional membrane materials, among other applications. The goal of the present paper is to introduce the structural properties of Gr and a surface modification method for Gr. In addition, the preparation methods and application fields of different Gr composite materials are reviewed. Finally, the development prospects and key issues are discussed.

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“…The first approach is where the carbon materials directly serve as photoelectronic actuators . Another approach is to incorporate carbon materials into other soft material matrixes to form a homogeneous composite through solution mixing/casting, in situ polymerization or wet spinning . The third approach is to use carbon materials as individual photothermal layers in bilayer structured photothermal actuators via vacuum filtration and high temperature curing …”

Section: Carbon‐based Soft Materials For Photoresponsive Actuator Designmentioning

confidence: 99%

“…In contrast, the vacuum filtration method is a simple and fast processing approach for layered‐structure fabrication. For instance, Leeladhar et al reported a bilayer structure integrating GO and PC membrane via vacuum filtration in which the PC membrane functioned as both substrate and filter . This bilayer structure showed deflection from the equilibrium state under both real sunlight and IR illumination (the maximum deflection was 12 mm in 3 s with a bending curvature of 0.33 cm −1 ) and demonstrated real‐world application of actuators driven by sunlight rather than an artificial light source.…”

Section: Carbon‐based Soft Materials For Photoresponsive Actuator Designmentioning

confidence: 99%

Photoresponsive Actuators Built from Carbon‐Based Soft Materials

Yang

Yuan

Liu

et al. 2019

Advanced Optical Materials

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Actuations triggered by light strongly depend on the energy density of light, energy conversion efficiency and actuator dimensions. Therefore, understanding the energy-conversion routes is crucial for effective photoresponsive actuations. As illustrated in Table 1, several actuating schemes have been demonstrated in carbon-based soft materials, including indirect light-to-work-conversion with heat energy, electric energy and chemical energy introduced as intermediate energy sources and

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Sunlight-driven eco-friendly smart curtain based on infrared responsive graphene oxide-polymer photoactuators

Cited by 42 publications

References 54 publications

Synthesis of Green Emitting Multi‐substituted Dibenzodioxins and Related Heteroacenes and Computational Investigation of Substituent Effects on Emission Spectra

Synthesis of Green Emitting Multi‐substituted Dibenzodioxins and Related Heteroacenes and Computational Investigation of Substituent Effects on Emission Spectra

A Review on the Contemporary Development of Composite Materials Comprising Graphene/Graphene Derivatives

Photoresponsive Actuators Built from Carbon‐Based Soft Materials

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