Schematic experimental setup of spray pyrolysis consist of: (1) leg, (2) holder of heater, (3) heater, (4) holder of substrate, (5) substrate, (6) thermocouple, (7) nozzle of spray gun, (8) solution prepared, (9) pressure regulator, (10) air compressor, and (11) power supply.
X-ray diffraction spectrum after annealing and inset shows Williamson-Hall plot of SZO5/Si.
SEM images of Sn doped ZnO/Si; (a) ZnO, (b) SZO1, (c) SZO2, (d) SZO3, (e) SZO4, and (f) SZO5.
Elemental mapping of Zn (red), Sn (yellow), and O (green) for a SZO5 nanostructured.
Reflectance spectrum of ZnO/Si and SZO5/Si. The inset shows spectra of halogen lamp in 11 cm distance away of SZO5/Si shows.
Transmission spectrum of ZnO and SZO5.
Effect of doping Sn on I-V characteristic of ZnO/Si diodes in dark. The inset shows the schematic circuit of the sample measurement.
I-V characteristic of SZO5/Si heterojunction under illumination laser and halogen lamp, the inset shows I-V characteristics between two Ag contact on the surface of SZO5.
I-V characteristic of SZO/Si heterojunction in reverse bias under illumination 325 nm and halogen lamp. The inset shows photocurrent of laser (325 nm) in large scale.
Photocurrent response of SZO5/Si diode in different voltages with good reproducibility under illumination (a) visible (halogen lamp) and (b) UV light (325 nm).
Article metrics loading...
Full text loading...