@article{Wang2026, 
author = {Xinyi Wang and Aobo Liao and Hang Yin and Xifan Wu and Kangkai Hu and Xuqiang Zhang and Yunyan Han and Jianbiao Chen and Jiangtao Chen and Yun Zhao and Yan Li and Wensheng Li},
title = {Wide-range linear piezoresistive pressure sensing synergistically enabled by black phosphorus/MXene van der Waals heterostructure and corrugated structure},
year = {2026},
journal = {Nano Research},
keywords = {black phosphorus, heterostructure, linear response, piezoresistive sensor, spatial pressure mapping},
url = {https://www.sciopen.com/article/10.26599/NR.2026.94909243},
doi = {10.26599/NR.2026.94909243},
abstract = {Flexible pressure sensors hold significant promise for wearable health/sports monitoring, object recognition and human–machine interactions (HMIs). However, the balancing between sensitivity and sensing range remains a challenge. Sustaining high sensitivity throughout a wide range poses great difficulties, and perfectly linear response output is difficult to realize accordingly. Herein, we propose a flexible piezoresistive sensor with van der Waals-assembled metal (MXene)–semiconductor (black phosphorus, BP) heterostructure (vdWMSHs) supported on corrugated paper. Benefiting from its vdWMSHs and corrugated structure, the sensing layer showcases typical tunneling behavior among heterostructure, undergoes large-scale hierarchical deformation and maintains progressively evolution of interfacial contacts when subjected to external applied loads. Therefore, the sensor achieves a superior linear response (R2=0.995) with a high sensitivity of 4.43 kPa–1 within a wide range of 2.9–287.5 kPa, as well as fast response and recovery times of 6/33 ms. And the sensor reveals a consistent sensing performance over 11000 loading-unloading cycles under the pressure of 49 kPa. This outstanding performance boosts diverse in real–time monitoring of human motions across a broad pressure range, as well as the mapping of spatial pressure recorded by sensor arrays. This work provides an opportunity to resolving the longstanding challenge in linear response output over a wide detection range, and holds a promising application in e-skin, and health monitoring technologies of the piezoresistive sensors.}
}