Au NPs decorated TiO 2 nanotubes array candidate for UV photodetectors

Anodic Titanium Oxide Layers Modified with Gold, Silver, and Copper Nanoparticles

“…The average size of silver nanoparticles was 25 ± 3 nm, and the Ag content determined by EDS was about 0.1 at.%. According to XPS studies performed for similar anodic materials [42,50,51], there are no chemical bonds between a noble metal and Ti. After deposition of Au and Ag nanoparticles on the surface of ATO layers, the solutions with metal nanoparticles were subjected to 3 Journal of Nanomaterials spectrophotometric analyses (Figure 3).…”

Materials characterization of TiO2 nanotubes decorated by Au nanoparticles for photoelectrochemical applications

“…[14][15][16] Various methods of depositing Au NPs on the tops of nanotubes have been proposed. Usually, chemical/electrochemical methods 6,17,18 assisted by photo-reduction or microwave chemical reduction processes are applied. 19 The precursor of gold was usually chloroauric acid (HAuCl 4 ).…”

Self‐Powered Flexible TiO2 Fibrous Photodetectors: Heterojunction with P3HT and Boosted Responsivity and Selectivity by Au Nanoparticles

“…When the UV light is on, the dramatically increased photocurrent of Au/TiO 2 /P3HT FPDs (Figure S8, Supporting Information) is possibly due to the hot electron injection effect of AuNPs. [ 48–50 ] Surprisingly, all the four Au/TiO 2 /P3HT FPDs can work under self‐powered mode and show dramatically enhanced responsivity within UV range (320–380 nm) with a peak at 350 nm and decreased values in the visible range (400–600 nm) compared with the TiO 2 /P3HT FPD at zero bias (Figure 7b,c). The related photoelectric performances are listed in Table 2.…”