Gel-cast—A promising technique to develop highly sensitive temperature sensor

An ultrafast quantum thermometer from graphene quantum dots

“…A self-standing lm of the rGO/ alumina nanocomposite was prepared via sol-gel processing where 0.6 wt% rGO powder was mechanically added to 99.4 wt% alumina sol as elaborated in ref. [77][78][79]. The temperature sensor was fabricated from this lm by slicing pieces of 10 mm  10 mm size from it and depositing silver electrodes at the two end terminals of the sample.…”

“…A large TCR is critical for improved sensitivity, resolution, dri, and response-and recovery time. 52,77,78 The TCR is directly calculated from the sensing measurements in non-contact, i.e. convection mode (Fig.…”

External Boosting of Free Carriers and Phonon Energy in MoS2/Reduced Graphene Oxide Nanosheet-Based Composite Films: Implications for Thermal Management

“…However, these cannot be put precisely on a microscale, and the majority cannot react to ultra-fast temperature transients. , There are a number of physical parameters that influence the performance of a temperature sensor, including the temperature coefficient of resistance (TCR) − and thermal hysteresis loss ( H th ), , which are important in governing the sensor’s response and recovery time, operating temperature range, resolution, and stability. Therefore, a high TCR as well as a low thermal hysteresis loss are a necessity for fast thermal sensing devices; even various thermal sensors based on metals and semiconductors failed to meet these standards. − Recent interest in two-dimensional (2D) materials has been sparked by their outstanding electrical properties, ultra-high surface area and volume, and unique physical and chemical properties that are thickness dependent. , Mono-to few-layer MoS 2 nanosheets have a large direct band gap (1.2–1.9 eV). − Apart from its easy exfoliation into mono-to few-layers, MoS 2 ’s unique semiconducting properties enable it to demonstrate high carrier mobility, making it an attractive choice for room temperature sensing.…”