• • Transparent PMN–PT ceramics enable high-speed electro-optic switching with response times in the nanosecond range, as demonstrated by Qiao et al. (Opt Commun 2011, 284: 3886-90) and Zhang et al. (Chin Phys B 2016, 25: 034202), directly impacting optical communication and adaptive optics where microsecond latency is prohibitive.
• • Lead-free KNN-based textured piezoceramics achieve ultrahigh thermal stability and piezoelectricity (Nat Commun 2024, 15: 9018), with Sb doping yielding ultrahigh piezoelectricity (Adv Funct Mater 2025, 35: 2425080), providing a viable pathway to replace lead-based systems in medical imaging and wearable sensors under RoHS compliance.
• • Reversible 3D laser printing of perovskite quantum dots inside transparent media (Nat Photonics 2019, 14: 82-8) enables monolithic integration of photoluminescent and electro-optic functionalities, critical for high-density optical data storage and anti-counterfeiting with spatial resolution below 1 µm.
• • Photochromic rotary encoders with high capacity (Adv Funct Mater 2024, 34: 2402603) and dual-responsive smart windows (Small 2025, 21: e2501977) demonstrate reversible optical modulation with fatigue resistance exceeding 10^3 cycles, addressing energy-efficient building automation and information encryption.