Electronic skin can convert mechanical stimuli into multimodal signals and can provide a cost-effective and complementary approach to environmental sensing. Here, light-emitting PVDF-HFP/GO-ZnS:Cu (PH-GZ) composite films were synthesized for visual triboelectric nanogenerators (TENGs), which can convert mechanical stimuli into both real-time photoemission and electric signals. The lower the trigger pressure threshold, the higher the sensitive response to subtle contact. Thus, the surface topography of approaching objects can be displayed visually with high brightness according to the physical contact. A quick-response safe drawer system was thus developed, relying on TENG-based personal information identification. Only when the obtained triboelectric–photoelectric signal matches the preset code can the drawer be opened. The as-designed durable visual TENGs with an open-circuit voltage of 32 V and a short-circuit current of 4.078 mA/m² promote self-powered TENG applications in areas of personal information security and tactile sensing systems.

中文翻译：

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用于自供电个人安全的发光视觉摩擦电纳米发电机

电子皮肤可以将机械刺激转换为多模态信号，并可以为环境传感提供一种经济有效的补充方法。在这里，合成了用于视觉摩擦电纳米发电机（TENG）的发光PVDF-HFP/GO-ZnS:Cu（PH-GZ）复合薄膜，它可以将机械刺激转化为实时光电信号和电信号。触发压力阈值越低，对细微接触的敏感响应越高。因此，可以根据物理接触以高亮度视觉地显示接近物体的表面形貌。基于TENG的个人信息识别，快速响应的保险箱抽屉系统就此诞生。只有当获得的摩擦电-光电信号与预设的代码匹配时，抽屉才能被打开。所设计的耐用视觉TENG具有32 V的开路电压和4.078 mA/m ²的短路电流，促进了自供电TENG在个人信息安全和触觉传感系统领域的应用。