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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
Summary
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.
- 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.
