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Updated: Sep 22, 2025

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
08:06

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

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Supramolecular Polymer-Molecule Complexes as Gain Media for Ultraviolet Lasers.

Jin-Yi Lin1,2,3, Gang-Yi Zhu4, Bin Liu2

  • 1Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, China.

ACS Macro Letters
|May 24, 2022
PubMed
Summary

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A new supramolecular system using 9,9'-diphenyl-9H,9'H-2,2'-bifluorene-9,9'-diol (DPFOH) and poly(methyl methacrylate) (PMMA) shows promise for ultraviolet optical gain. This DPFOH/PMMA complex forms high-quality films for optoelectronic devices.

Area of Science:

  • Materials Science
  • Optoelectronics
  • Polymer Chemistry

Background:

  • Novel supramolecular systems are crucial for advanced optical applications.
  • Polymer-based materials offer potential for cost-effective optoelectronic devices.
  • Understanding structure-property relationships in organic materials is key for performance enhancement.

Purpose of the Study:

  • To develop a novel supramolecular system for optical gain in the ultraviolet (UV) spectrum.
  • To investigate the role of hydrogen bonding in forming high-quality thin films.
  • To evaluate the potential of the DPFOH/PMMA complex for optoelectronic applications.

Main Methods:

  • Synthesis of 9,9 -diphenyl-9H,9'H-2,2 -bifluorene-9,9 -diol (DPFOH) and its analogue DPFO8.
  • Formation of supramolecular complex with poly(methyl methacrylate) (PMMA) via hydrogen bonding.

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  • Characterization of thin-film microstructure and optical properties, including photoluminescence quantum efficiency and laser action.

    • Main Results:

    • A supramolecular complex of DPFOH and PMMA was successfully formed via hydrogen bonding.
    • The DPFOH/PMMA complex yielded homogeneous films with high photoluminescence quantum efficiency (∼38%).
    • Demonstrated UV laser action at 385 nm, indicating high optical quality.

    Conclusions:

    • The DPFOH/PMMA supramolecular complex exhibits excellent properties for UV optical gain.
    • Hydrogen bonding is critical for achieving homogeneous films and high optical performance.
    • This system holds significant potential for low-cost, solution-processed optoelectronic devices.