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Organic lateral heterostructures with interfacial fluctuation for polarization-resolved photonics
Yan-Peng Ye1, Qiang Lv1, Chao-Fei Xu1
1Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, Jiangsu 215123, PR China.
Science Advances
|January 2, 2026
Summary
Researchers developed a new vapor-phase growth method for organic lateral heterostructures (OLHs). This technique precisely controls epitaxial layer thickness, enabling novel photonic converter applications.
Area of Science:
- Materials Science
- Organic Electronics
- Nanotechnology
Background:
- Organic lateral heterostructures (OLHs) are crucial for optoelectronics.
- Precise construction of 2D OLHs with noncoplanar epitaxial layers is challenging.
Purpose of the Study:
- To present a stepwise vapor-phase growth strategy for synthesizing 2D OLHs.
- To control interfacial fluctuation and create convex, flat, and concave architectures.
- To enable tunable epitaxial layer thickness and explore new optoelectronic functionalities.
Main Methods:
- Stepwise vapor-phase growth strategy.
- Controlled variation of growth temperatures to influence molecular deposition and growth orientation.
- Characterization of resulting OLHs for structural and optical properties.
Main Results:
- Successfully synthesized 2D OLHs with convex, flat, and concave architectures.
- Demonstrated precise tuning of epitaxial layer thickness from 20 to 800 nm via growth temperature.
- Observed orthogonally polarized exciton conversion with dual photoluminescence emission bands (450 and 670 nm).
Conclusions:
- The developed strategy effectively regulates the epitaxial growth route of 2D OLHs.
- The synthesized OLHs function as efficient multimode photonic converters.
- This work paves the way for advanced integrated photonic circuits.
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