Integration of Perovskite/Low-Dimensional Material Heterostructures for Optoelectronics and Artificial Visual Systems

Heterojunctions combining halide perovskites with low-dimensional materials are revolutionizing optoelectronic device design by leveraging complementary properties. Halide perovskites, known for their tunable bandgaps, excellent light-harvesting, and efficient charge carrier mobility, provide a robust foundation for photodetectors (PDs) and imaging sensors. Low-dimensional materials contribute ultrafast carrier mobility, enhanced light-matter interactions, and mechanical flexibility. When integrated into heterostructures, these materials enable precise control over charge dynamics, leading to significant improvements in device efficiency, stability, and response speed. This synergy addresses critical challenges in optoelectronics, advancing flexible electronics, wearable sensors, and high-sensitivity imaging systems. Ongoing advancements in interface engineering and material synthesis are continually enhancing the reliability and operational efficacy of these devices across various environmental conditions. Additionally, these heterostructures show substantial promise in neuromorphic computing, where their optoelectronic properties support energy-efficient, event-driven data processing. By mimicking the adaptive and hierarchical nature of biological visual systems, they offer new possibilities for real-time image analysis and intelligent decision-making. This review highlights the latest developments in halide perovskite-based heterojunctions with low-dimensional materials and their transformative role in bridging the gap between artificial and biological vision, driving advancements in technologies such as adaptive robotics and bio-inspired visual systems.