1D Organic Micro/Nanostructures for Photonics

Shi, Ying-Li; Wang, Xuedong

doi:10.1002/adfm.202008149

Cited by 53 publications

(39 citation statements)

References 128 publications

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“…Structures with highly defined flat end faces can behave as efficient FP cavities producing the required feedback to achieve laser action ( Figure 11 a,b). Crystalline one-dimensional wires are one example [ 134 , 135 , 136 ]. The length and width of the wire as well as the molecular orientation determine whether the FP cavity is constituted along the wire, or between the lateral faces of the wire.…”

Section: Organic Solid Lasersmentioning

confidence: 99%

Organic Semiconductor Micro/Nanocrystals for Laser Applications

2021

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Organic semiconductor micro/nanocrystals (OSMCs) have attracted great attention due to their numerous advantages such us free grain boundaries, minimal defects and traps, molecular diversity, low cost, flexibility and solution processability. Due to all these characteristics, they are strong candidates for the next generation of electronic and optoelectronic devices. In this review, we present a comprehensive overview of these OSMCs, discussing molecular packing, the methods to control crystallization and their applications to the area of organic solid-state lasers. Special emphasis is given to OSMC lasers which self-assemble into geometrically defined optical resonators owing to their attractive prospects for tuning/control of light emission properties through geometrical resonator design. The most recent developments together with novel strategies for light emission tuning and effective light extraction are presented.

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Section: Organic Solid Lasersmentioning

confidence: 99%

Organic Semiconductor Micro/Nanocrystals for Laser Applications

2021

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“…Another critical point to be noted in the molecular design will be developing highly soluble materials as they provide added advantage to employ them in laboratory convenient solution‐processable device fabrication. In addition to the above‐mentioned vacuum or solution‐processed organic emitting materials; quantum dots, [ 75 ] perovskites, [ 67 ] organic cocrystals, [ 159,160 ] single crystals, [ 65 ] organic 1D micro/nanostructures (for novel nanoscale flexible optoelectronic devices), [ 161–164 ] etc., can also be employed as emitting materials based on their feasibility for large scale device fabrications.…”

Section: Challenges and Critical Parameters To Consider For Future Olet Research Directionmentioning

confidence: 99%

En Route to Wide Area Emitting Organic Light‐Emitting Transistors for Intrinsic Drive‐Integrated Display Applications: A Comprehensive Review

Ganesan

Tsao

Gao

2021

Adv Funct Materials

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Organic light-emitting transistors (OLET) evolved from the fusion of the switching functionality of field-effect transistors (FET) with the light-emitting characteristics of organic light-emitting diode (OLED) that can simplify the active-matrix pixel device architecture and hence offer a promising pathway for future flat panel and flexible display technology. This review systematically analyzes the key device/molecular engineering tactics that assist in improving the electrode edge narrow emission to wide-area emission for display applications via three different topics, that is, narrow to wide-area emission, vertical architecture, and impact of high-κ dielectric on the device performance. Source-drain electrode engineering such as symmetric/asymmetric, planar/ non-planar arrangement, semitransparent nature, multilayer approach comprising charge transport, and work function modification layers enable widening the emission zone. Vertical OLET architecture offers short channel lengths with a high aperture ratio, pixel type area emission, and stable lightemitting area. Transistors utilizing high-κ dielectric materials have assisted in lowering the operating voltage, enhancing luminance and air stability. The promising development in achieving wide-area emission provides a solid basis for constructing OLET research toward display applications; however, it relies on developing highly luminescent and fast charge transporting materials, suitable semitransparent source/drain electrodes, high-κ -dielectrics, and device architectural engineering.

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“…[ 7,8 ] In particular, organic 1D micro‐/nanostructured responsive materials are versatile building blocks for integrating multifunctional optical vapor sensing and miniaturized lasing applications owing to their specific surface area, stable physicochemical properties, and high optical cross section. [ 9–11 ] For optical vapor sensing, 1D architectures can enhance device performances including selectivity, spatial resolution, and sensitivity compared with random spin‐coated films and fiber networks. [ 12,13 ] Furthermore, the fluorescence variations of 1D structures quantified by spectroscopy offer a fast access and efficient avenue for achieving rapid identification and sensitive detection of organic vapors.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Organic Single‐Crystalline Microwire Arrays toward Optical Applications

Geng

Zhao

et al. 2022

Adv Funct Materials

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Single-crystalline micro-/nanostructures based on organic stimulus-responsive materials have attracted wide interests for their unique functional roles in various photonic applications including optical wave guiding, optical vapor sensing, and miniaturized lasing. Yet one imminent challenge is to pattern micro-/nanostructured organic 1D arrays with controlled geometry, precise alignment, and pure crystallographic orientation owing to the uncontrollable dewetting dynamics in the solution processes. Herein, a smart assembly method is employed to regulate a confined crystallization of organic molecules. Sensitive, stable, and reproducible optical 1D-array vapor sensors can detect the alkaline and acidic vapors based on the proton transfer process. As-fabricated vapor sensors based on organic 1D arrays also selectively identify four similar amine vapors. Meanwhile, based on these 1D microstructure arrays, high-performing Fabry-Pérot resonators with deep-red laser emission, a low lasing threshold of 0.31 µJ, and high quality factor Q (≈2243) are realized. Owing to these multiple functions, organic microwire arrays not only provide intrinsic insight into optical vapor sensing but also offer guidance for the development of miniaturized lasers with specific functionalities, which show considerable potential in multifunctional photonic integrated circuits.

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1D Organic Micro/Nanostructures for Photonics

Cited by 53 publications

References 128 publications

Organic Semiconductor Micro/Nanocrystals for Laser Applications

Organic Semiconductor Micro/Nanocrystals for Laser Applications

En Route to Wide Area Emitting Organic Light‐Emitting Transistors for Intrinsic Drive‐Integrated Display Applications: A Comprehensive Review

Multifunctional Organic Single‐Crystalline Microwire Arrays toward Optical Applications

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