Amino-bridged attapulgite@perovskite nanocomposites: the role of bridge linkage in their optical properties and stabilities

Qiu, Lei; Guan, Mengyu; Wang, Wei; Мolokeev, Maxim S.; Polyutov, Sergey; Dai, Zhigao

doi:10.1039/d3qi00863k

Cited by 2 publications

(1 citation statement)

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“…As a low-cost and widely sourced clay, attapulgite (ATP) possesses a unique layer chain structure, high specific surface area and cation exchange capacity. 1,2 Accordingly, attapulgite has been widely utilized as an important basic material in the aspect of environmental protection, 3,4 adsorption separation 5,6 and composite materials. 7,8 Nevertheless, powdery attapulgite is restricted to a certain extent due to the size and structure requirements in practical applications.…”

Section: Introductionmentioning

confidence: 99%

3D-printing of attapulgite monoliths with superior low-temperature selective catalytic reduction activity: the influence of thermal treatment

Zhu,

Yu,

Zhu

et al. 2024

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

3D-printing of attapulgite monoliths with superior low-temperature selective catalytic reduction activity: the influence of thermal treatment

Zhu,

Yu,

Zhu

et al. 2024

New J. Chem.

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Symmetry-Broken Electronic State of CsPbBr₃ Cubic Perovskite Nanocrystals

Miranti,

Komatsu,

Enomoto

et al. 2024

J. Phys. Chem. Lett.

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The development of densely packed, self-assembled perovskite nanocrystals (PeNCs) with a favorable transition dipole moment (TDM) orientation is crucial for their application in solution-processable electronic devices. In this study, we fabricated anisotropic CsPbBr 3 PeNCs with a symmetry-broken electronic state on quartz substrates modified by 3aminopropyltrimethoxysilane (APS). Densely packed and self-assembled monolayers of cubic PeNCs were formed on the substrates by using a dip coating technique. The angle-dependent absorption and photoluminescence (PL) spectra confirmed that the PeNC monolayer on the APS-treated substrate exhibited anisotropic electronic states in the in-plane and out-ofplane directions of the substrate. In contrast, when the quartz substrate was modified with the long alkyl silane coupling agent, octadecyltrimethoxysilane, the absorption and PL spectra exhibited no angular dependence, indicating the absence of anisotropy. Experimental and simulated results confirmed the presence of vertical TDMs in the densely packed PeNCs on the APS-treated substrate, which could be attributed to the effect of the amino groups of the APS on the facet of the cubic PeNCs facing the quartz substrate. Hence, surface chemical modifications of the substrate can aid in the precise control of the symmetry of the electronic states and TDM orientation in cubic PeNCs. These findings can promote the development of densely packed, high-coverage PeNC films with a controllable TDM orientation for applications in electronic devices such as solar cells, sensors, and light-emitting diodes.

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Amino-bridged attapulgite@perovskite nanocomposites: the role of bridge linkage in their optical properties and stabilities

Abstract: Perovskite-based nanocomposites have garnered significant interests due to their potential in interfacial engineering, optical modification, and stability enhancement. However, current understanding of the construction models between perovskites and guest materials...

Cited by 2 publications

References 50 publications

3D-printing of attapulgite monoliths with superior low-temperature selective catalytic reduction activity: the influence of thermal treatment

3D-printing of attapulgite monoliths with superior low-temperature selective catalytic reduction activity: the influence of thermal treatment

Symmetry-Broken Electronic State of CsPbBr₃ Cubic Perovskite Nanocrystals

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Amino-bridged attapulgite@perovskite nanocomposites: the role of bridge linkage in their optical properties and stabilities

Abstract: Perovskite-based nanocomposites have garnered significant interests due to their potential in interfacial engineering, optical modification, and stability enhancement. However, current understanding of the construction models between perovskites and guest materials...

Cited by 2 publications

References 50 publications

3D-printing of attapulgite monoliths with superior low-temperature selective catalytic reduction activity: the influence of thermal treatment

3D-printing of attapulgite monoliths with superior low-temperature selective catalytic reduction activity: the influence of thermal treatment

Symmetry-Broken Electronic State of CsPbBr3 Cubic Perovskite Nanocrystals

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Symmetry-Broken Electronic State of CsPbBr₃ Cubic Perovskite Nanocrystals