Highly sensitive and low-power consumption metalloporphyrin-based junctions for CO_x detection with excellent recovery

Abstract

The development of cost-effective and eco-friendly sensor materials is needed to realize the use of sensors in daily life—such as in the internet of things. In this regard, monitoring air...

The theoretical prediction of the structural characteristics and SO2 adsorption-sensing properties of pristine HfS2 and TM-doped HfS2 monolayers (TM = Ni, Pd, or Pt)

“…The sensitivity is affected by the size and shape of the electrodes, the central region material, and the distance between the electrodes and the central region. 61 In this work, we have designed gas sensor models with a typical size and shape to study the impact of the different central region materials on their sensitivity toward SO 2 molecules. The gas sensor models consist of two Au-electrodes and a scattering region, and they are approximately 13 Â 50 Å in size (as shown in Fig.…”

Highly efficient metalloporphyrin-based nanosensors for NO detection

“…Another additional criterion of a practical sensor is the selectivity factor ( K ), where the device senses a certain gas out of many ones. 52 Let's compare the E ads of NO compared with CO and CO 2 48 over the Au– M Por–Au junctions. The bar plot in Fig.…”

“…(b) The selectivity of the Au-CrPor-Au junction for NO sensing in comparison with CO and CO 2 . (c) The calculated sensitivity of the Au-CrPor-Au junction for NO, CO, and CO 2 detection as a function of bias voltages.The results for the CO and CO 2 gas are taken from our previous study 48.…”