Single Te Nanoribbon for Disrupting Conventional Sensitivity‐Power Limits of Flexible Strain Sensors

Abstract

Abstract Flexible strain sensors are pivotal for the advancement of robotics, wearable healthcare, and human‐machine interaction in the post‐Moore era. However, conventional materials struggle to simultaneously achieve high sensitivity, a broad strain range, and low power consumption for cutting‐edge applications. In this work, the issue is addressed through single crystal 1D tellurium nanoribbons (NRs), which are synthesized on SiO 2 /Si substrate by hydrogen‐assisted chemical vapor deposition (CVD) method. After transferring onto polyethylene terephthalate (PET) substrates via a dry transfer process, single Te NR is patterned into a flexible strain sensor using a photolithography process. With the nickel ohmic contacts, the device demonstrates a maximum gauge factor (GF) of 105 over a broad strain range from −1.0% to 1.0%. Besides, the flexible strain sensor exhibits robust stability under 1000 cycles and ultralow power consumption at the picowatt level. The results offer a unique solution to break the sensitivity‐power consumption trade‐off, highlighting Te NRs as a promising platform for next‐generation energy‐efficient strain sensing electronics.