Zinc oxide–black phosphorus composites for ultrasensitive nitrogen dioxide sensing

Abstract

ZnO–BP composites exhibit high sensitivity, fast response behavior, outstanding selectivity, and ultralow detection limit towards nitrogen dioxide due the large surface area, excellent carrier mobility, and enhanced charge transfer of ZnO–BP in the presence of BP. Moreover, the introduction of ZnO significantly enhances BP environmental stability.

Low-temperature operating ZnO-based NO2 sensors: a review

“…Li et al combined multi-layere BP nanosheets by ultrasonic treatment into ZnO hollow spheres obtained by microwave-assisted hydrothermal method. 129 The sensor based on ZnO-BP composite material shows high response, fast response behavior, and the detection concentration of NO 2 is as low as 1 ppb. The rst-principle studies have conrmed that the gas-sensing mechanism of ZnO-BP is due to the excellent carrier mobility.…”

Semiconducting quantum dots: Modification and applications in biomedical science

“…For short-term goals, SQDs can be combined with other cutting-edge materials to make full use of their properties. At present, the combination of semiconductor materials with MXene, black phosphorus, TMDCs, and other materials has shown strength in the fields of optics [159], catalysis [160], and sensing [161]. SQDs can look for opportunities to optimize the materials used in these studies.…”

Low‐Dimensional Black Phosphorus in Sensor Applications: Advances and Challenges

“…BP, as a layered material sensitive to the surrounding atmosphere with a resistivity that is easily affected by molecular adsorption, exhibits a high carrier mobility and wide range of band gap modulation that may improve the sensitivity of gas detection. Currently, BP-based gas sensors are commonly used in the detection of NO x [59] and H 2 gases. [60] Abbas et al [16] studied a BP-based FET for NO 2 gas detection.…”