Low‐Dimensional Organic Crystals: From Precise Synthesis to Advanced Applications

Lv, Qiang; Zheng, Min; Wang, Xue‐Dong; Liao, Liang‐Sheng

doi:10.1002/smll.202203961

Cited by 7 publications

(2 citation statements)

References 198 publications

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“…Meanwhile, the fabricated TP-F 4 TCNQ CT cocrystal microwires display excellent one-dimensional (1D) optical waveguide performance as a potential NIR optical transmission material. However, there is a strong CT interaction between the strong donor and acceptor molecules selected to prepare the NIR-emitting CT complex, which contribute to the usual D–A alternating chain packing mode of molecules. , Therefore, studying 1D optical waveguides with rod or linear CT cocrystal structures is common. Preparing sheet-like NIR-emitting materials through CT cocrystal engineering is still rare and challenging.…”

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confidence: 99%

Two-Dimensional Optical Waveguides at Telecom Wavelengths Based on Organic Single-Crystal Microsheets of a Charge Transfer Complex

Liu

et al. 2023

J. Phys. Chem. Lett.

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Organic charge transfer (CT) cocrystals open a new door for the exploitation of low-dimensional near-infrared (NIR) emitters by a convenient self-assembly approach. However, research about the fabrication of sheet-like NIR-emitting microstructures that are significant for structural construction and integrated application is limited by the unidirectional molecular packing mode. Herein, via regulation of the biaxial intermolecular CT interaction, single-crystalline microsheets with remarkable NIR emission from 720 to 960 nm were synthesized via the solution self-assembly process of dithieno[3,2-b:2′,3′-d]thiophene and 7,7,8,8-tetracyanoquinodimethane. The expected sheet-like structure is conducive to achieving a two-dimensional (2D) optical waveguide with an ultralow optical loss rate of 0.250 dB/μm at 860 nm. More significantly, these asprepared organic microsheets with tunable thicknesses (h) from 100 to 1100 nm exhibit thickness-dependent NIR optical transportation performance. These findings could pave the way to a new class of low-dimensional NIR emitters for 2D photonics at telecom wavelengths.

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confidence: 99%

Two-Dimensional Optical Waveguides at Telecom Wavelengths Based on Organic Single-Crystal Microsheets of a Charge Transfer Complex

Liu

et al. 2023

J. Phys. Chem. Lett.

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“…Hierarchically branched crystalline organic micro/nano-optical components have been achieved for advanced nanophotonic applications. [22][23][24] Organic crystals readily demonstrated their ability to act as miniature photonic components like active waveguides, [25][26][27][28] passive waveguides, 29,30 cavities or resonators, 31,32 modulators, 33 and lasers. 10 In the past few years, work has been done on the fabrication of organic photonic components and their integration to fabricate organic PICs (OPICs) using the mechanophotonics approach.…”

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confidence: 99%

Crystal photonics foundry: geometrical shaping of molecular single crystals into next generation optical cavities

Pradeep,

Chosenyah,

Mamonov

et al. 2023

Nanoscale

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The Key Role of Molecular Packing in Luminescence Property: From Adjacent Molecules to Molecular Aggregates

Liao,

Li,

2023

Advanced Materials

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The luminescence materials act as the key components in many functional devices, as well as the detection and imaging systems, which can be permeated in each aspect of modern life, and attract more and more attention for the creative technology and applications. In addition to the diverse properties of organic luminogens, the multiple molecular packing at aggregated states frequently offer new and/or exciting performance. However, there still lacks comprehensive analysis of molecular packing in these organic materials, resulting in an increased gap between molecular design and practical applications. In this review, from the basic knowledge of organic compounds as single molecules, to the discernable property of excimer, charge transfer (CT) complex or self‐assembly systems by adjacent molecules, and finally to the opto‐electronic performance of molecular aggregates, the relevant factors to the molecular packing and practical applications are discussed.This article is protected by copyright. All rights reserved

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Low‐Dimensional Organic Crystals: From Precise Synthesis to Advanced Applications

Abstract: Figure 2. Strategic approaches for the precise nucleation and growth of organic single crystals form tunable morphology, high uniformity, and flexible architectures toward functional optoelectronic and photonic applications.

Cited by 7 publications

References 198 publications

Two-Dimensional Optical Waveguides at Telecom Wavelengths Based on Organic Single-Crystal Microsheets of a Charge Transfer Complex

Two-Dimensional Optical Waveguides at Telecom Wavelengths Based on Organic Single-Crystal Microsheets of a Charge Transfer Complex

Crystal photonics foundry: geometrical shaping of molecular single crystals into next generation optical cavities

The Key Role of Molecular Packing in Luminescence Property: From Adjacent Molecules to Molecular Aggregates

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