2018 IEEE International Conference on Semiconductor Electronics (ICSE) Synthesis, Properties and Humidity Detection of Anodized Nb2O5 Films

Abstract

Synthesis of nanoporous network Nb2O5has been conducted via anodization technique in the flouride-organic based solution. The structure morphology and the properties of the nanoporous films were characterized using field emission scanning electron microscopy (FESEM). In this research, a humidity sensor based on 1.5 micrometer thick nanoporous Nb2O5was developed and their performance was evaluated under 40% to 90% relative humidity at room temperature and different bias voltages of 2, 5 and 8 V. The highest relative sensitivity achieved was 156.2 for humidity sensor operated at bias voltage of 5 V.