Controllable-assembled functional monolayers by the Langmuir–Blodgett technique for optoelectronic applications

Lin, Heng; Zheng, Yueting; Zhong, Chao; Lin, Lihua; Yang, Kaiyu; Liu, Yang; Hu, Hailong; Li, Fushan

doi:10.1039/d3tc03591c

Cited by 4 publications

(1 citation statement)

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“…Among the two-dimensional (2D) materials exhibiting AIE, SAM has received considerable attention. − In these materials, predicting molecular orientation is quite simple due to the strong interactions of the anchoring group with the solid surface. The Langmuir–Blodgett (LB) technique is another technique to prepare layers thin materials. − This method, recognized for its adeptness in generating highly organized 2D supramolecular systems on solid surfaces, also holds particular relevance in the preparation of AIE sensors. According to this approach, fluorogen molecules undergo preorganization at air–water interface within a Langmuir layer, followed by their transfer onto a solid support.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Langmuir–Blodgett Films from Quinoxalines Exhibiting Aggregation-Induced Emission and Their Acidochromism

Ermakova,

Zvyagina,

Kharlamova

et al. 2024

Langmuir

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The development of aggregation-induced emission (AIE)-exhibiting compounds heavily relies on our evolving comprehension of their behavior at interfaces, an understanding that still remains notably limited. In this study, we explored the preparation of two-dimensional (2D) sensing films from 2,3-diphenylquinoxaline-based diazapolyoxa-and polyazamacrocycles displaying AIE via the Langmuir−Blodgett (LB) technique. This systematic investigation highlights the key role of the heteroatom-containing tether of 2,3diphenylquinoxalines in the successful fabrication of Langmuir layers at the air−water interface and the transfer of AIE-emitting supramolecular aggregates onto solid supports. Using both diazapolyoxa-and polyazamacrocycles, we prepared AIE-exhibiting monolayer films containing emissive supramolecular aggregates on silica, mica, and quartz glass and characterized them using ultraviolet−visible (UV−vis) and photoluminescence (PL) spectroscopies, atomic force microscopy (AFM) imaging, and fluorescence microscopy. We also obtained multilayer AIE-emitting films through the LB technique, albeit with increased complexity. Remarkably, by employing the smallest macrocycle N 2 C 3 Q, we successfully prepared LB films suitable for the visual detection of acidic vapors. This sensing material, which contains a much lesser amount of organic dye compared with traditional drop-cast films, can be regenerated and utilized for real-life sample analysis, such as monitoring the presence of ammonia in the air and the freshness of meat.

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Section: Introductionmentioning

confidence: 99%

Preparation of Langmuir–Blodgett Films from Quinoxalines Exhibiting Aggregation-Induced Emission and Their Acidochromism

Ermakova,

Zvyagina,

Kharlamova

et al. 2024

Langmuir

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Interface‐Interactive Nanoarchitectonics: Solid and/or Liquid

Ariga

2024

ChemPhysChem

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The methodology of nanoarchitectonics is to construct functional materials using nanounits such as atoms, molecules, and nanoobjects, just like architecting buildings. Nanoarchitectonics pursues the ultimate concept of materials science through the integration of related fields. In this review paper, under the title of interface‐interactive nanoarchitectonics, several examples of structure fabrication and function development at interfaces will be discussed, highlighting the importance of architecting materials with nanoscale considerations. Two sections provide some examples at the solid and liquid surfaces. In solid interfacial environments, molecular structures can be precisely observed and analyzed with theoretical calculations. Solid surfaces are a prime site for nanoarchitectonics at the molecular level. Nanoarchitectonics of solid surfaces has the potential to pave the way for cutting‐edge functionality and science based on advanced observation and analysis. Liquid surfaces are more kinetic and dynamic than solid interfaces, and their high fluidity offers many possibilities for structure fabrications by nanoarchitectonics. The latter feature has advantages in terms of freedom of interaction and diversity of components, therefore, liquid surfaces may be more suitable environments for the development of functionalities. The final section then discusses what is needed for the future of material creation in nanoarchitectonics.

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Preparation of Langmuir-Blodgett composite films based on sericin protein and silk fibroin with good surface-enhanced Raman scattering and photovoltaic properties

Zhao,

Wang,

Wei

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Controllable-assembled functional monolayers by the Langmuir–Blodgett technique for optoelectronic applications

Abstract: Preparation of high-quality functional films with nanoscale thickness and tunable layers is highly preferable and indispensable for optoelectronic applications, having drawn enormous attention from research communities. Constructing dense quasi-lattice self-assembled...

Cited by 4 publications

References 232 publications

Preparation of Langmuir–Blodgett Films from Quinoxalines Exhibiting Aggregation-Induced Emission and Their Acidochromism

Preparation of Langmuir–Blodgett Films from Quinoxalines Exhibiting Aggregation-Induced Emission and Their Acidochromism

Interface‐Interactive Nanoarchitectonics: Solid and/or Liquid

Preparation of Langmuir-Blodgett composite films based on sericin protein and silk fibroin with good surface-enhanced Raman scattering and photovoltaic properties

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