# Omnidirectional tele-perception enabled by nano-architectured electret skin

## TL;DR

A new nano-architectured electret skin enables omnidirectional tele-perception for better human-machine interaction.

## Contribution

The development of an omnidirectional nano-architectured electret skin with enhanced spatial perception and adaptive interaction.

## Key findings

- Eight NAES units enable omnidirectional electrostatic tele-perception.
- CTL–CBL charge trapping ensures stable and high-fidelity electrostatic sensing.
- Directional signal patterns allow accurate target orientation recognition.

## Abstract

The environmental perception capability of embodied intelligent systems is highly dependent on their physical interactions with the surrounding environment, where tele-perception serves as a key technology enabling adaptive interaction and real-time human-machine interaction (HMI). However, existing tele-perception systems are fundamentally constrained by their underlying physical mechanisms and environmental disturbances, resulting in limited sensing directionality, poor spatial resolution, and inadequate environmental robustness. To address these challenges, this study develops an omnidirectional nano-architectured electret skin (NAES) by precisely tuning charge-trapping units within the established heterogeneous interface of the charge transport layer (CTL) and charge blocking layer (CBL). The proposed architecture arranges NAES units along 0°, 45°, 90°, 135°, and four diagonal orientations, leveraging the anisotropic electrostatic disturbance responses of each unit to achieve high-precision tele-perception of omnidirectional targets in three-dimensional space. This design overcomes the unidirectional sensing limitation of conventional NAES systems, enabling enhanced spatial perception and adaptive omnidirectional interaction in complex, dynamic environments.

•Eight NAES units enable omnidirectional electrostatic tele-perception•CTL–CBL charge trapping ensures stable and high-fidelity electrostatic sensing•Directional signal patterns allow accurate target orientation recognition•The design overcomes unidirectional limits in HMI applications

Eight NAES units enable omnidirectional electrostatic tele-perception

CTL–CBL charge trapping ensures stable and high-fidelity electrostatic sensing

Directional signal patterns allow accurate target orientation recognition

The design overcomes unidirectional limits in HMI applications

Biotechnology; Applied sciences