Reversible Luminescence Photoswitching of Colloidal CsPbBr<sub>3</sub> Nanocrystals Hybridized with a Diarylethene Photoswitch

Mokhtar, Ashkan; Morinaga, Ryuki; Akaishi, Yuji; Shimoyoshi, Manami; Kim, Sunnam; Kurihara, Seiji; Kida, Tetsuya; Fukaminato, Tuyoshi

doi:10.1021/acsmaterialslett.0c00131

Cited by 25 publications

(12 citation statements)

References 42 publications

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“…The low-cost fabrication can be attributed to MHPs’ intrinsic soft ionic nature with a low formation energy, but it also causes structure instability and device performance degradation on exposure to external stimuli. A number of research studies have indicated that MHPs’ optical properties and crystalline phase structures are sensitive to the environmental factors including temperature, − light irradiation, − moisture, − and mechanical stress . There is no doubt that the material instability of MHPs is a disadvantage for optoelectronic devices and requires remediation, but on the other side of the coin, this instability can be advantageous for developing MHP chromic systems that coupled a dynamic factor to the tunable material performances …”

Section: Introductionmentioning

confidence: 99%

Reversible Phase Transitions of all Inorganic Copper-Based Perovskites: Water-Triggered Fluorochromism for Advanced Anticounterfeiting Applications

Feng

Wang

et al. 2022

ACS Appl. Electron. Mater.

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Recently, several lead halide perovskites have been demonstrated as functional materials with hydrochromic, thermochromic, and photochromic properties for anticounterfeiting applications. However, their lead toxicity and relatively poor stability are still drawbacks for large-scale practical applications. In this work, we report the reversible water-triggered fluorochromism of the copper-based perovskites, which utilize the crystalline phase transition between Cs3Cu2I5 and CsCu2I3. The custom-designed images printed using the Cs3Cu2I5 ink are invisible under daylight but emit intense blue fluorescence under UV light. This fluorescence undergoes a blue-to-orange color change upon exposure to water, which can be recovered upon removing water. Furthermore, the fluorochromism of Cs3Cu2I5 is tunable to blue, blue-green, and cyan via anion-exchange reactions in various halide salt solutions. These multicolor- and multistimuli-responsive benefits make Cs3Cu2I5 a promising chromic material for high-level information security applications.

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Section: Introductionmentioning

confidence: 99%

Reversible Phase Transitions of all Inorganic Copper-Based Perovskites: Water-Triggered Fluorochromism for Advanced Anticounterfeiting Applications

Feng

Wang

et al. 2022

ACS Appl. Electron. Mater.

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“…The introduction of photochromic molecules into a donor–acceptor system has become a widely used strategy to realize photocontrolled FRET. [ 172 ] However, to obtain better switching performance, it is still necessary to design a proper way to introduce DAE units into fluorescent materials, [ 173 ] such as covalently connecting them with fluorophores or physical doping, which is usually effective in regulating the intramolecular or intermolecular FRET process. It remains challenging to simplify the synthesis and preparation process while ensuring satisfactory stimulus‐responsiveness.…”

Section: Changes In the Physical And Chemical Properties Of Daementioning

confidence: 99%

Future‐Oriented Advanced Diarylethene Photoswitches: From Molecular Design to Spontaneous Assembly Systems

et al. 2022

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cycloreversion of DAE under light irradiation produces many exciting functional effects, such as changes in photophysical and photochemical properties, [12] changes in the shape or mechanical properties of the solid, [13] electrical conductivity, [7b,14] and the generation of reactive oxygen species (ROS). [15] This type of photochromic compound can be considered a stilbene derivative. At this time, the most widely known and systematically studied DAE derivative structure contains two aryl groups and a benzene ring (usually two identical or different thiophene units with low aromatic stabilization energy [16] ) and a five-membered ring of perfluorocyclopentene and cyclopentene units [17] where the ethene bridge is located, which significantly improve photochromism. [18] In essence, the DAE photoisomerization process is a reversible electrocyclic reaction of the central 6π-electron systems. [2] Under light irradiation, DAE can rapidly and reversibly transform between its open and closed forms, and that transformation is accompanied by a color change caused by a change in the π-conjugation distribution. [2] The important thing is that the colorless opened-and colored closed-ring isomers are both thermally stable; that is, cyclization and cycloreversion do not proceed spontaneously in the dark; they need to be driven by external light irradiation at specific wavelengths. [2,19] Compared with classic lightresponsive molecules such as azobenzene, [20] the light intensity required to drive the isomerization of DAE is relatively low. Moreover, even after multiple cycles, the photochromic performance does not show significant fatigue in either the solution or solid state. [2,18b,21] DAE research to this point can be roughly divided into three stages in chronological order: early exploration of DAE's molecular structure and theory, nearly two decades of purpose-oriented molecular structure modification research, and about ten years of research into practical applications of DAE in assembly systems. Research before about 2000 focused mainly on developing more abundant DAE-derivative structures and advancing the systematic understanding of DAE's physical and chemical properties and switching performance. To regulate its switching performance and give it new functionality, many strategies for modifying the ethene bridge and aryl groups of DAE have been proposed. [22] In the first two research stages, the mechanisms and structural modification of DAE isomerization were thoroughly and systematically explored, and countless important Diarylethene (DAE) photoswitch is a new and promising family of photochromic molecules and has shown superior performance as a smart trigger in stimulus-responsive materials. During the past few decades, the DAE family has achieved a leap from simple molecules to functional molecules and developed toward validity as a universal switching building block. In recent years, the introduction of DAE into an assembly system has been an attractive strategy that enables the photochromic behavior of the b...

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“…10 In recent years, photochromic materials with uorescence photoswitching functions have been developed rapidly. [11][12][13] Compared with the absorption signal, the uorescence signal has higher detection sensitivity and limit, and also the feasibility of non-destructive readout. [14][15][16][17][18] Therefore, molecular photoswitches with optically controlled uorescence switching capacity show more broad application prospects in photon-model storage.…”

Section: Introductionmentioning

confidence: 99%

Visible-light-driven bistable photoswitching with enhanced solid state NIR-fluorescence for multi-level optical storage

et al. 2023

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Reversible Luminescence Photoswitching of Colloidal CsPbBr₃ Nanocrystals Hybridized with a Diarylethene Photoswitch

Cited by 25 publications

References 42 publications

Reversible Phase Transitions of all Inorganic Copper-Based Perovskites: Water-Triggered Fluorochromism for Advanced Anticounterfeiting Applications

Reversible Phase Transitions of all Inorganic Copper-Based Perovskites: Water-Triggered Fluorochromism for Advanced Anticounterfeiting Applications

Future‐Oriented Advanced Diarylethene Photoswitches: From Molecular Design to Spontaneous Assembly Systems

Visible-light-driven bistable photoswitching with enhanced solid state NIR-fluorescence for multi-level optical storage

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Reversible Luminescence Photoswitching of Colloidal CsPbBr3 Nanocrystals Hybridized with a Diarylethene Photoswitch

Cited by 25 publications

References 42 publications

Reversible Phase Transitions of all Inorganic Copper-Based Perovskites: Water-Triggered Fluorochromism for Advanced Anticounterfeiting Applications

Reversible Phase Transitions of all Inorganic Copper-Based Perovskites: Water-Triggered Fluorochromism for Advanced Anticounterfeiting Applications

Future‐Oriented Advanced Diarylethene Photoswitches: From Molecular Design to Spontaneous Assembly Systems

Visible-light-driven bistable photoswitching with enhanced solid state NIR-fluorescence for multi-level optical storage

Contact Info

Product

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Reversible Luminescence Photoswitching of Colloidal CsPbBr₃ Nanocrystals Hybridized with a Diarylethene Photoswitch