TY  - JOUR
AU  - Li, Gang
AU  - Ma, Xiaofei
AU  - Wu, Lin
AU  - Sui, Yanwei
AU  - Huang, Jianglun
AU  - Huang, Keke
AU  - Li, Liang
PY  - 2026
TI  - Photothermoelectric effect-driven TaSe3 tactile sensors for micrometer-scale distance detection
JO  - Nano Research
SN  - 1998-0124
SP  - 94908913
VL  - 19
IS  - 9
AB  - Detecting human-robot distances at the micrometer-scale is essential for advanced human–robot interaction, yet existing flexible sensors are typically limited to millimeter-scale resolution. Here, we develop a flexible sensor using quasi-one-dimensional (quasi-1D) TaSe3 nanowires to measure micrometer-scale distances via the photothermoelectric (PTE) effect. The sensor has self-powered operation (zero bias), ultrabroadband photoresponse (405 nm to 10.6 µm), good bending stability (no degradation after 500 bends), and strain-insensitive photocurrent. Importantly, it achieves 1 µm spatial resolution for distance detection within 100 µm, suggesting micrometer-scale sensitivity. These results highlight the potential of TaSe3-based PTE sensors for advancing human-robot systems.
UR  - https://doi.org/10.26599/NR.2026.94908913
DO  - 10.26599/NR.2026.94908913