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Related Experiment Video

Updated: Nov 14, 2025

Aerosol-assisted Chemical Vapor Deposition of Metal Oxide Structures: Zinc Oxide Rods

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Published on: September 14, 2017

Aggregation-Induced Emission Molecule Microwire-Based Specific Organic Vapor Detector through Structural

Xiangyu Jiang¹, Zhenwei Yu², Chao Ma³

¹Research Institute of Frontier Science, Beihang University, Beijing 100191, China.

ACS Applied Materials & Interfaces

|March 8, 2021

Summary

This summary is machine-generated.

New organic vapor sensors utilize aggregation-induced emission (AIE) polymer composites in microwire arrays for highly sensitive detection. This breakthrough enhances sensitivity to subparts per million levels for various organic vapors.

Keywords:

AIE/polymer composites capillary-bridge-mediated-assembly microwires array optical organic vapor sensor superwettability

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Micropunching Lithography for Generating Micro- and Submicron-patterns on Polymer Substrates

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Published on: July 2, 2012

Area of Science:

Materials Science
Chemical Sensors
Nanotechnology

Background:

Optical organic vapor sensors offer rapid detection but face sensitivity limitations.
Aggregation-induced emission (AIE) molecules exhibit unique fluorescence properties.
Polymer swelling upon vapor absorption can alter sensor performance.

Purpose of the Study:

To develop highly sensitive and specific organic vapor sensors.
To leverage AIE/polymer composites for enhanced vapor detection.
To investigate the mechanism of sensitivity enhancement in microwire array sensors.

Main Methods:

Fabrication of AIE/polymer composite microwire arrays using capillary-bridge-mediated assembly.
Design of AIE molecules and polymer side chains with varying polarities.
Detection of organic vapors via swelling-induced fluorescence changes.
Spectroscopic quantification of colorimetric or fluorescence responses.

Main Results:

Successfully fabricated AIE/polymer microwire arrays for specific organic vapor detection.
Demonstrated swelling-induced fluorescence changes as the detection mechanism.
Achieved subparts per million (ppm) level sensitivity for targeted vapors.
Correlated sensor sensitivity with the polarity matching between AIE/polymer components and vapor molecules.

Conclusions:

AIE/polymer microwire arrays offer a promising platform for sensitive organic vapor sensing.
Molecular design based on polarity matching is crucial for optimizing sensor performance.
The developed sensors overcome previous sensitivity challenges in optical organic vapor detection.