Temperature dependent conductivity and structural properties of sol–gel prepared holmium doped Bi2O3 nanoceramic powder

Enhancement of Dielectric Characteristics of Polyvinyl Alcohol (PVA) Interfacial Layer in Au/PVA/n‐Si Structures by Bi2O3Disperse

“…Usually, these phases transform into a-Bi 2 O 3 on further cooling. In previous studies, 1,19,20 PVA nanofibers, which have Bi 2 O 3 crystalline form, were obtained by dispersing bismuth (III) acetate into PVA and electro spraying PVA solution on the semiconductor. Due to the predominance of certain phase, which depends on preparation technology, the electrical conductivity of Bi 2 O 3 may change by five orders of magnitude, while its band gap may change from 2 to 3.96 eV.…”

“…Due to peculiar properties of Bi 2 O 3 , in particular, introduction of Bi 2 O 3 filler into polymeric matrices can modify the optical, electrical, and dielectric properties. In previous studies, 1,19,20 PVA nanofibers, which have Bi 2 O 3 crystalline form, were obtained by dispersing bismuth (III) acetate into PVA and electro spraying PVA solution on the semiconductor. With similar experimental setting, we dispersed various acetates (Ni, Co, Bi, etc.)…”

“…Moreover, in another study, 5 we obtained that Au/PVA (Co-dispersed)/n-Si structures can be used as photodiode. In this study, we prepare solution by dispersing bismuth (III) acetate into PVA using similar experimental settings used in previous studies, 1,19,20 thereby Bi 2 O 3 -dispersed PVA solution was obtained to be used in Au/PVA(Bi 2 O 3 -dispersed)/n-Si MPS structures. We aimed to investigate Au/PVA (Bi 2 O 3 -dispersed)/n-Si structure's dielectric properties and obtain whether it can be used in other possible applications.…”