Luminescent and ultrastable perovskite-acrylate based elastomers with excellent stretchability and self-healing capability for flexible backlight display

Pan, Aizhao; Zhou, Yu; Zhao, Chunyu; Shi, Chengyu; Wu, Youshen; Zhang, Yanfeng; Liu, Yi; He, Ling

doi:10.1016/j.cej.2021.133590

Cited by 25 publications

(16 citation statements)

References 41 publications

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“…Cesium lead halide (CsPbX 3 ) perovskite nanocrystals (NCs) are widely applied in the fields of solar cells, photodetectors, liquid crystal televisions, and other optoelectronics − due to their high photoluminescence quantum yields (PLQYs), , narrow spectral widths, tunable PL spectrum in the whole visible light region, adjustable band gaps, and high color purity. − In addition, low-dimensional perovskite NCs have been continuously studied. , However, the surface ligands of these NCs are easily desorbed during the purification process, resulting in the aggregation and growth of NCs into large particles, which decreases the stability and PLQYs . In particular, cesium lead iodide (CsPbI 3 ) NCs can accelerate degradation under the conditions of water, heat, and strong light.…”

Section: Introductionmentioning

confidence: 99%

Cubic CsPbI₃ Nanoarchitectonics with High and Stable Photoluminescence toward White Light-Emitting Diodes

et al. 2023

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The poor stability of cesium lead iodide (CsPbI3) perovskite nanocrystals (NCs) under light and humidity conditions limits their practical application. The dynamic binding of ligands is easy to desorb during the purification process, which results in a deterioration of their optical performance and stability. In this paper, sodium dodecyl benzene sulfonate (SDBS) was used to modify the surface of CsPbI3 NCs. By utilizing the strong combined effect of benzenesulfonic acid and Pb ions, the poor stability caused by the loss of weakly interacting amine ligands was effectively improved; meanwhile, the I ion vacancies can be filled to inhibit the occurrence of nonradiative recombination, so that the optical performance of the CsPbI3 NCs is improved. The radiative and nonradiative recombination process during photoluminescence is deeply discussed. After modification, the photoluminescence quantum yields of CsPbI3 NCs reached 90.7%, the superior photoluminescence intensity still retained 83% of the initial intensity after being stored for 60 days under environmental conditions, and the stability in water was remarkably improved. Additional SDBS was used after purification, suggesting that the presence of SDBS can effectively improve photostability. This method offers a new idea for preparing high-performance perovskite-based devices.

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Section: Introductionmentioning

confidence: 99%

Cubic CsPbI₃ Nanoarchitectonics with High and Stable Photoluminescence toward White Light-Emitting Diodes

et al. 2023

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“…Furthermore, impermeable to humidity and oxygen, a polymer matrix can greatly enhance the environmental stability of CQDs, making them more suitable for practical applications. Recently, self-healable properties of elastomers were employed to construct CQD-polymer heterostructures, opening up a new avenue of using CQDs in smart and wearable optoelectronics. , …”

Section: Introducing Stretchability Through Heterostructure Engineeringmentioning

confidence: 99%

“…Recently, self-healable properties of elastomers were employed to construct CQDpolymer heterostructures, opening up a new avenue of using CQDs in smart and wearable optoelectronics. 73,74 Though elastomers can significantly improve the mechanical and optical properties of CQD solids, their insulating nature negatively impacts the charge-carrier transport in the CQDpolymer heterostructures. Charge-carrier transport in CQD solids is generally governed by the hopping mechanism, the transition rate of which can be expressed by the following eq 1: 77 = i k j j j j j y…”

Section: Heterostructure Through the Introduction Of Elasticmentioning

confidence: 99%

Heterostructure Engineering of Solution-Processable Semiconductors for Wearable Optoelectronics

Kim

Seong

Gong

2023

ACS Appl. Electron. Mater.

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Wearable and implantable optoelectronics, including light-emitting diodes (LEDs), photovoltaics (PVs), and photodetectors (PDs), have recently gained great interest for their potential applications in wearable technology, the Internet of things (IoT), and personalized healthcare. The development of optoelectronics with superior mechanical deformability (i.e., stretchability) is highly desired, as such devices can be worn seamlessly on the body, enabling noninvasive, continuous, and accurate real-time health monitoring using light. However, conventional optoelectronics build on inorganic semiconductors with high rigidity and brittleness. The lack of mechanical deformability impedes the reliable acquisition of biosignals during the motion of the human body, hindering the biomedical application of optoelectronics. Innovative design for intrinsically stretchable optoelectronics is thus urgently needed. This Spotlight identifies strategies and advances in intrinsically stretchable optoelectronics. We focus on heterostructure engineering, which can effectively impart softness in solution-processable optoelectronic semiconductors, including organic semiconductors (OSCs), colloidal quantum dots (CQDs), and metal halide perovskites (MHPs). Lastly, we propose a roadmap for future stretchable optoelectronics research toward its practical application in healthcare, renewable energy, soft robotics, and beyond.

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“…Zhang et al embedded the PQDs into the porous structure of a hydrophobic polymer organogel with high stretchability (950% elongation) . Also, stable luminescent and stretchable perovskite composites were fabricated by embedding perovskite nanocrystals into organic polymer elastomers, such as poly(dimethylsiloxane)-urea, acrylate elastomers, and aromatic nonpolar organogels. − However, these luminescent organic polymer elastomers have some problems that need to be optimized, such as a complex preparation process, poor biocompatibility, and poor environmental friendliness, which limit their application in wearable and flexible displays.…”

Section: Introductionmentioning

confidence: 99%

Flexible, Stretchable, and Luminescent Hydrogels Based on a Polydimethylsiloxane-Coated CsPbBr₃ Nanostructure for Elastomers

Liu

Lai

et al. 2023

ACS Appl. Nano Mater.

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Cesium lead halide perovskite nanocrystals (PNCs) have attracted great attention in optoelectronic devices due to their excellent optical properties, such as tunable emission wavelengths, long carrier lifetime, and narrow full width at half-maximum (fwhm). However, the poor stability of PNCs in water or humid environments greatly limits their wide-spreading applications. It is challenging to prepare PNCs with long-term stability in water. Herein, we successfully prepared CsPbBr3@PDMS microspheres by using the emulsification method. Due to the protection of the PDMS layer, the CsPbBr3@PDMS microspheres exhibit good optical properties and stability in water, acid, and alkali solutions. In addition, to expand the application of CsPbBr3 NCs in flexible optical devices and wearable devices, we first prepared stretchable, stable, and photoluminescent hydrogel with a CsPbBr3@PDMS microsphere (hydrogel/CsPbBr3@PDMS) by using the emulsification method. The hydrogel/CsPbBr3@PDMS elastomer exhibits good stability and stretchability. Furthermore, the hydrogel/CsPbBr3@PDMS elastomer retains bright green emission and stability under different mechanical deformations. This work provides a method to improve the CsPbBr3 PNCs with high stability by emulsification, which could also expand the applications of PNCs in underwater display, wearable, and flexible optoelectronic devices.

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Luminescent and ultrastable perovskite-acrylate based elastomers with excellent stretchability and self-healing capability for flexible backlight display

Cited by 25 publications

References 41 publications

Cubic CsPbI₃ Nanoarchitectonics with High and Stable Photoluminescence toward White Light-Emitting Diodes

Cubic CsPbI₃ Nanoarchitectonics with High and Stable Photoluminescence toward White Light-Emitting Diodes

Heterostructure Engineering of Solution-Processable Semiconductors for Wearable Optoelectronics

Flexible, Stretchable, and Luminescent Hydrogels Based on a Polydimethylsiloxane-Coated CsPbBr₃ Nanostructure for Elastomers

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Luminescent and ultrastable perovskite-acrylate based elastomers with excellent stretchability and self-healing capability for flexible backlight display

Cited by 25 publications

References 41 publications

Cubic CsPbI3 Nanoarchitectonics with High and Stable Photoluminescence toward White Light-Emitting Diodes

Cubic CsPbI3 Nanoarchitectonics with High and Stable Photoluminescence toward White Light-Emitting Diodes

Heterostructure Engineering of Solution-Processable Semiconductors for Wearable Optoelectronics

Flexible, Stretchable, and Luminescent Hydrogels Based on a Polydimethylsiloxane-Coated CsPbBr3 Nanostructure for Elastomers

Contact Info

Product

Resources

About

Cubic CsPbI₃ Nanoarchitectonics with High and Stable Photoluminescence toward White Light-Emitting Diodes

Cubic CsPbI₃ Nanoarchitectonics with High and Stable Photoluminescence toward White Light-Emitting Diodes

Flexible, Stretchable, and Luminescent Hydrogels Based on a Polydimethylsiloxane-Coated CsPbBr₃ Nanostructure for Elastomers