Multifunctional Organic Single-Crystalline Microwire Arrays toward Optical Applications,Advanced Functional Materials

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Multifunctional Organic Single-Crystalline Microwire Arrays toward Optical Applications
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2022-02-02 , DOI: 10.1002/adfm.202113025
Yue Geng _{1,

2} , Yingjie Zhao _{1,

2} , Yuyan Zhao _{1,

2} , Jiangang Feng ₃ , Jingyuan Zhang ₄ , Xin Fan _{1,

2} , Hanfei Gao _{1,

5} , Xue‐Dong Wang ₆ , Lei Jiang _{1,

5} , Yuchen Wu _{1,

5}

Affiliation

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.

中文翻译：

面向光学应用的多功能有机单晶微线阵列

基于有机刺激响应材料的单晶微/纳米结构因其在光波导、光蒸气传感和小型化激光等各种光子应用中的独特功能而引起了广泛的兴趣。然而，一个迫在眉睫的挑战是图案化具有受控几何形状、精确对准和纯晶体取向的微/纳米结构有机一维阵列，这是由于溶液过程中不可控的去润湿动力学。在此，采用智能组装方法来调节有机分子的受限结晶。灵敏、稳定且可重复的光学一维阵列蒸汽传感器可以根据质子转移过程检测碱性和酸性蒸汽。基于有机一维阵列的预制蒸汽传感器还可以选择性地识别四种相似的胺蒸汽。同时，基于这些一维微结构阵列，具有深红色激光发射、0.31 µJ 的低激光阈值和高品质因数的高性能法布里-珀罗谐振器实现了Q (≈2243)。由于这些多功能，有机微线阵列不仅为光学蒸汽传感提供了内在的洞察力，而且为具有特定功能的微型激光器的开发提供了指导，在多功能光子集成电路中显示出相当大的潜力。

更新日期：2022-02-02

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