Photon-assisted nanostructures of self-assembled soft materials

Koo, Min Ah; Han, Hyowon; Oh, Jin Woo; Park, Cheolmin

doi:10.1016/j.nantod.2021.101199

Cited by 4 publications

(2 citation statements)

References 197 publications

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“…With resin synthesis and processing accounting for 91% of carbon emissions from plastic, methods to improve the energy efficiency of polymer processing are imperative . Commonly, polymers are processed by conventional heating, though alternative heating methods for polymer manufacturing and processing have been developed, including photo, − microwave, − ultrasonic, , and magnetic − processes. In particular, induction heating provides a unique opportunity for efficient polymer processing .…”

Section: Introductionmentioning

confidence: 99%

Magnetic Nanoparticles Improve Flow Rate and Enable Self-Healing in Covalent Adaptable Networks

Diodati

Liu

Rinaldi‐Ramos

et al. 2023

ACS Appl. Mater. Interfaces

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Covalent adaptable networks (CANs) combine the mechanical and chemical stability of thermosets with the reprocessability of thermoplastics through the incorporation of stimuli-responsive dynamic crosslinks. To allow for processing through induction heating, we have created associative CANs that include fillers in the polymer matrix for efficient heat transfer. While the inclusion of inorganic fillers often decreases flow rate in CANs and complicates reprocessing of the material, the presence of Fe3O4 nanoparticles had no detrimental effect on flow behavior in a vinylogous urethane vitrimer, an observation we attribute to the catalytic nature of nanoparticles on the dynamic exchange chemistry. We employed two methods of nanoparticle incorporation: blending bare nanoparticles and crosslinking chemically modified nanoparticles. The vitrimers with covalently crosslinked nanoparticles exhibited a decreased relaxation time compared to those with blended nanoparticles. The magnetic character of the Fe3O4 nanoparticles enabled self-healing of the vitrimer composite materials upon exposure to an alternating electromagnetic field during induction heating.

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Section: Introductionmentioning

confidence: 99%

Magnetic Nanoparticles Improve Flow Rate and Enable Self-Healing in Covalent Adaptable Networks

Diodati

Liu

Rinaldi‐Ramos

et al. 2023

ACS Appl. Mater. Interfaces

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“…[25][26][27] To circumvent these limitations and develop air-stable perovskite films, numerous crystal engineering strategies based on controlling the crystal size, orientation, and phase have been employed. A few such strategies are treatment with an antisolvent, [28,29] formation of an intermediate adduct phase, [30] and addition of a polymeric agent. [21,31] Despite the effective implementation of these strategies, the use of toxic antisolvents or electrically insulating polymer additives limit their industrial applications.…”

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confidence: 99%

Metal–Organic Framework‐Assisted Metal‐Ion Doping in All‐Inorganic Perovskite for Dual‐Mode Image Sensing Display

Han

Kim

et al. 2022

Adv Funct Materials

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Crystal engineering based on defect passivation with metal ions doped into halide perovskites is of considerable interest for tailoring the photoelectric properties of perovskites. Herein, a simple and robust approach for doping metal ions into a thin all‐inorganic CsPbBr3 perovskite film by employing metal–organic framework nanoparticles is presented. Zeolitic imidazolate framework‐8 nanoparticles, which can adsorb water, are dispersed and embedded in a thin perovskite film. The particles self‐decompose at a certain humidity, releasing Zn2+ ions into nearby perovskite crystals. The Zn2+ ions efficiently passivate the undercoordinated defect sites of the defective perovskite crystals, resulting in environmentally stable and enhanced photoluminescence of the perovskite with a quantum yield of ≈14%, more than 24 times greater than that without nanoparticles. Further, a thin Zn‐doped CsPbBr3 film is employed to fabricate arrays of ultraviolet photodetectors, and ≈90% of the initial photocurrent is maintained over 15 d in RH 60%, facilitating the development of a dual‐mode image sensor using which programmed images are visualized based on both photocurrent and photoluminescence.

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Characteristics of a mixed-gas cluster ion beam for time-of-flight secondary ion mass spectrometry

Lee

Hong

Cho

et al. 2022

Applied Surface Science

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Photon-assisted nanostructures of self-assembled soft materials

Cited by 4 publications

References 197 publications

Magnetic Nanoparticles Improve Flow Rate and Enable Self-Healing in Covalent Adaptable Networks

Magnetic Nanoparticles Improve Flow Rate and Enable Self-Healing in Covalent Adaptable Networks

Metal–Organic Framework‐Assisted Metal‐Ion Doping in All‐Inorganic Perovskite for Dual‐Mode Image Sensing Display

Characteristics of a mixed-gas cluster ion beam for time-of-flight secondary ion mass spectrometry

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