Morphological, structural, optical, and electrical study of nanostructured thin films: Charge transport mechanism of p-type Co3O4

The High Efficient Investigations of Properties of Co3O4 Nanostructured by Facile Spray Pyrolysis Technique for Future Gas Sensors Application

“…The electrical measurement showed that all our samples had the electrical resistivity in an order of 10–100 Ω cm. A similar value was reported by Miquelot et al [ 62 ]…”

“…[60] The electrical measurement showed that all our samples had the electrical resistivity in an order of 10-100 Ω cm. A similar value was reported by Miquelot et al [62] The resistivity decreased from 134.50 to 38.01 for the increase of deposition temperatures from 425 to 500 °C. On the contrary, the electrical conductivity increased from 7.43 Â 10 À3 to 26 Â 10 À3 (S cm À1 ).…”

Soft-templated, mesoporous Co3O4 thin films for electrocatalysis of the oxygen evolution reaction

“…18 However, this drawback can be overcome by doping 19 and/or nanostructuring strategies. 20 It is described in literature that the (nano-) morphology of Co 3 O 4 plays a significant role for the overall electrocatalytic performance since it affects the effective surface area and migration paths of the charge carriers. 21 In a comparative study between mesoporous and compact/dense high entropy oxide (HEO) thin films applied as OER catalysts, it has been demonstrated that indeed nanostructured materials possess substantially lower charge transfer resistances and an increased number of catalytically active reaction sites resulting in reduced overpotentials.…”