Highly sensitive flexible heat flux sensor based on a microhole array for ultralow to high temperatures.

ABSTRACT: With the growing demand for thermal management of electronic devices, cooling of high-precision instruments, and biological cryopreservation, heat flux measurement of complex surfaces and at ultralow temperatures has become highly imperative. However, current heat flux sensors (HFSs) are commonly used in high-temperature scenarios and have problems when applied in low-temperature conditions, such as low sensitivity and embrittlement. In this study, we developed a flexible and highly sensitive HFS that can operate at ultralow to high temperatures, ranging from -196 °C to 273 °C. The sensitivities of HFSs with thicknesses of 0.2 mm and 0.3 mm, which are efficiently manufactured by the screen-printing method, reach 11.21 μV/(W/m²) and 13.43 μV/(W/m²), respectively. The e

SUBMITTER: Li L 

PROVIDER: S-EPMC10598026 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature