Significant enhancement in field emission and photoluminescence properties of vertically aligned tellurium nanorods by plasma treatment

Fabrication of zinc oxide nanorods for photocatalytic degradation of docosane, a petroleum pollutant, under solar light simulator

“…47 The broad band of indigo emission centered at 443 nm (2.80 eV) was attributed to a Zn i + charge. 48 In addition, a blue luminescence emission peak was observed at 480 nm (2.58 eV), which was assigned as antisite oxygen (O Zn ), due to transitions from the CB to O Zn to near the VB. 24,46…”

“…47 The broad band of indigo emission centered at 443 nm (2.80 eV) was attributed to a Zn i + charge. 48 In addition, a blue luminescence emission peak was observed at 480 nm (2.58 eV), which was assigned as antisite oxygen (O Zn ), due to transitions from the CB to O Zn to near the VB. 24,46 The violet-blue emission of the ZnO NR sample in the wavelength region of 400-480 nm has great application potential in light emission and bioluminescence.…”

The Electronic Properties Evolution of Tellurium Crystals with Plasma Irradiation Treatment

“…When the irradiation power further increases, the tunneling current begins to decrease rapidly (Figure 3b). On the other hand, it is worth noting that Faisal Shahzad et al also significantly improved the electron field emission performance of tellurium nanorods arrays grown perpendicular to the substrate (dropping from 6.22 V/μm to 3.25 V/μm) by HP irradiation treatment, and the authors attributed this improvement to the fact that HP produces numerous abrupt-tips, which increases its emission current density and thereby enhances its conductive properties [29]. In this work, the optical images clearly indicate that the tellurium crystal flake surface structure has not been damaged by HP irradiation energy accumulation at relatively low power (see the optical images for the first 6 th HP treatments in Figure 2b).…”