Porous Nanostructured Gadolinium Aluminate for High-Sensitivity Humidity Sensors.

ABSTRACT: This paper presents the synthesis of gadolinium aluminate (GdAlO3), an oxide compound with a perovskite structure, for applications as a capacitive and/or resistive humidity sensor. Gadolinium aluminate was synthesized by the sol-gel self-combustion method. This method allowed us to obtain a highly porous structure in which open pores prevail, a structure favorable to humidity sensors. Most of the materials studied as capacitive/resistive humidity sensors have significant sensitivities only with respect to one of these types of sensors. In the case of the studied gadolinium aluminate with p-type electric conductivity, the relative humidity of the air has a significant influence on both capacitive and resistive types of electric humidity sensors. The capacity increases about 10,000 times, a

SUBMITTER: Doroftei C 

PROVIDER: S-EPMC8618696 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature