从晶格手性控制的硒纳米线中进行手性压电能量收集
Chiropiezoelectric Energy Harvesting from Lattice-Handedness-Controlled Selenium Nanowires
AI总结：
研究提出原子手性工程作为无机压电纳米材料设计原则，以原子手性三角硒纳米线为模型，发现相同化学成分下晶格手性改变压电性能，为设计压电材料开辟新途径。
摘要：
可穿戴电子等系统发展加剧对收集微弱生物机械能的无机压电材料需求。虽现有方法改进了机电响应，但未引入增强压电性新机制。本文提出原子手性工程作为无机压电纳米材料设计原则，以原子手性三角硒纳米线为例展示晶格手性对压电性能的影响，为设计压电材料建立新途径。
英文摘要：
The growth of wearable electronics, soft robotics, and Internet-of-Things systems has intensified the demand for inorganic piezoelectric materials that harvest weak biomechanical energy. Advances through composition optimization, defect engineering, strain engineering, and orientation control have improved existing electromechanical responses, but have not introduced a new mechanism for enhancing piezoelectricity. Here we propose atomic chirality engineering as a design principle for inorganic piezoelectric nanomaterials. Unlike conventional strategies that modify composition or morphology, atomic chirality alters the handedness of the crystal lattice itself, adding a degree of freedom for controlling dipole alignment, electromechanical coupling, and potentially spin-dependent transport. Using atomically chiral trigonal selenium nanowires as a model system, we show that crystal handedness alone changes piezoelectric performance at identical chemical composition. Piezoresponse force microscopy resolved a consistent enantiomeric difference, with right-handed D-Se nanowires reaching a higher effective piezoelectric coefficient than their left-handed counterparts, and flexible nanogenerators and self-powered acoustic sensors built from the two enantiomers produced distinct outputs under identical deformation. This work establishes atomic chirality as a distinct route for designing piezoelectric materials, one that may extend across non-centrosymmetric inorganic semiconductors for sustainable energy harvesting and wearable sensing.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
