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Inorganic perovskite-based active multifunctional integrated photonic devices
Qi Han1, Jun Wang2, Shuangshuang Tian3
1State Key Laboratory of ASIC & System, School of Microelectronics, Fudan University, Shanghai, 200433, China.
Nature Communications
|February 20, 2024
Summary
Researchers developed novel perovskite-based photonic devices for integrated optical chips. These micro-lasers and waveguides enable advanced functions for future computing and information science applications.
Area of Science:
- Photonics and optoelectronics
- Materials science
- Semiconductor devices
Background:
- Highly efficient active integrated photonic circuits are essential for advancing information and computing.
- Lead halide perovskites possess excellent optoelectronic properties, making them suitable for photonic devices.
Purpose of the Study:
- To fabricate active micro multifunctional photonic devices using perovskite semiconductors.
- To demonstrate the potential of perovskite-based devices for integrated optical chips.
Main Methods:
- Fabrication of devices on monocrystalline CsPbBr3 perovskite thin films using focused ion beam etching.
- Development of micro-lasers and coupled waveguides for light manipulation.
Main Results:
- A high-quality micro laser was created, serving as an integrated light source.
- Demonstrated angle-dependent propagation between perovskite-microwire waveguides.
- Realized novel perovskite-based devices: micro beam splitter, X-coupler, and Mach-Zehnder interferometer.
Conclusions:
- Provided a proof-of-concept for active integrated functionalized photonic devices based on perovskite semiconductors.
- These devices represent a promising direction for practical applications in integrated optical chips.
- Highlights the potential of perovskites in next-generation photonic technologies.
