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Updated: May 22, 2025
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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
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Zero-Dimensional Plastic Phase Transition Iron-Based Compounds with High Tc and Switchable SHG Responses
Jing Wei1, Qiu-Lan Tan1,2, Xi-Xi Wang1
1Jiangxi Provincial Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, P. R. China.
Inorganic Chemistry
|March 14, 2025
Summary
Two novel organic-inorganic hybrid materials exhibit reversible phase transitions and switchable nonlinear optical properties, suitable for advanced sensor and data storage applications.
Area of Science:
- Materials Science
- Solid-State Chemistry
- Crystallography
Background:
- Organic-inorganic hybrid materials offer unique properties like phase transitions and structural flexibility.
- These materials are promising for sensor technologies and data storage.
Purpose of the Study:
- To synthesize novel plastic organic-inorganic hybrid phase transition materials.
- To investigate their dielectric, optical, and semiconducting properties.
Main Methods:
- H/F substitution strategy for material synthesis.
- Characterization of phase transitions via dielectric measurements.
- Evaluation of nonlinear optical (NIO) effects and band gap determination.
Main Results:
- Successful synthesis of [C7H17NF]FeCl4 (1) and [C7H17NF]FeBr4 (2).
- Observed reversible phase transitions with significant step-like dielectric changes at 401 K (1) and 406 K (2).
- Demonstrated flexible switchable second-harmonic generation (SHG) effects and band gap semiconductor characteristics (2.44 eV for 1, 2.08 eV for 2).
Conclusions:
- The H/F substitution strategy is effective for creating functional organic-inorganic hybrid materials.
- These materials exhibit promising properties for optoelectronic applications.
- The study provides a pathway for designing and tuning hybrid materials for specific technological uses.
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