Metal halide perovskite materials have been extensively explored in modern photonic devices. Photonic crystals (PCs) are periodic structures with specific optical properties, such as stop bands and “slow photon” effects, which can tailor the propagation distribution of photons photoelectric PCs recent years widely to significantly improve performance luminescent and/or Therefore, a full underst...

Hand exoskeleton pose monitoring is of great importance in the rehabilitation training stroke patients to ensure precise robotic trajectory control and provide a patient recovery assessment mechanism. In this paper, low-cost sensor unit based on principle photoelectric reflection proposed measure multi-segment continuous structure hand exoskeleton. The consists five photosensitive elements that...

Over the past decade, organic–inorganic hybrid perovskite solar cells (PVSCs) have shown unprecedented growth in power conversion efficiency (PCE) from 3.8% to 25.7%. However, intrinsic thermal instability and lead toxicity are obstacles limiting its large–scale commercialization. Thus, all-inorganic CsSnI3 has drawn remarkable interest owing nontoxicity, excellent stability, low-cost fabricati...

Lead halide perovskites have attracted extensive attention in recent years because of their excellent photoelectronic properties, such as high absorption coefficients, carrier mobilities, defect tolerances, and photoluminescence efficiencies. However, a key issue hindering commercial application is the toxicity lead. Replacing lead with other nontoxic elements promising solution to this problem...

A new wurtzite phase Cu(2)ZnSnS(4) was discovered and the corresponding nanocrystals have been successfully synthesized. They have been characterized in detail and showed the photoelectric response, which demonstrated their potential in the application of photovoltaic devices.