研究目的
To demonstrate the rare mechano-photonic attributes, viz., mechanical flexibility coupled with wavelength-division multiplexing (WDM) in single-crystals of dithieno[3,2-a:2′,3′-c]phenazine (1), and to explore their potential in flexible miniature photonic devices.
研究成果
The presented one-dimensional macrocrystal (1) with a high aspect ratio demonstrated elasticity in a three-point bending test, while micro-crystals behaved like plastic crystals under AFM cantilever tip pressure. The flexible crystal waveguides can be used for WDM technologies by varying the optical path lengths of the transducing light. The mechanical micromanipulation technique can be extended to any flexible crystals to design and carve complex photonic circuits.
研究不足
The study is limited by the mechanical manipulation techniques available for microcrystals and the need for further optimization of the photonic circuits for practical applications.
1：Experimental Design and Method Selection:
The study involved the synthesis and characterization of dithieno[3,2-a:2′,3′-c]phenazine (1) crystals, followed by mechanical flexibility tests and optical waveguiding studies.
2：Sample Selection and Data Sources:
Pale-yellow crystals of 1 were obtained from dichloromethane solution with a hexane layer on top.
3：List of Experimental Equipment and Materials:
Atomic force microscopy (AFM) cantilever tip for micromanipulation, confocal microscopy set-up for optical waveguiding studies.
4：Experimental Procedures and Operational Workflow:
Mechanical bending of macrocrystals with forceps and a needle, micromanipulation of microcrystals with AFM cantilever tip, and optical excitation at different positions to study waveguiding properties.
5：Data Analysis Methods:
FL spectra analysis to study the self-absorbance and waveguiding properties of the crystals.
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