Structural, electrical and optical properties of sol–gel derived yttrium doped ZnO films

Abstract

Undoped and yttrium doped zinc oxide thin films have been deposited on corning glass by dip coating technique. The effect of doping (0–4 wt%) and annealing temperature (300–500 °C) on the structural, optical and electrical properties of the produced films have been investigated. All the films show polycrystalline nature at an annealing temperature of 350 °C. The preferential c‐axis growth with lowest full width at half maximum of (002) reflection peak is seen only up to an optimum annealing temperature. A blue shift in the absorption edge is observed both, with increase in dopant concentration and annealing temperature. The electrical resistivity of the films decreases by doping with yttrium. The lowest resistivity of 3.5 × 10–2 Ω cm and an average transmittance of 86% in the visible range has been obtained in YZO films doped with 3 wt% of yttrium and annealed at 450 °C. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Tunable deep-level emission in ZnO nanoparticles via yttrium doping

“…Since ZnO is usually a kind of n-type semiconductor material and Y ion is n-type dopant, this slight blueshift of UV emission can be ascribed to the Burstein-Moss effect [56]. Moreover, this result also has a good agreement with previous report by Kaur et al [57], wherein they both theoretically calculated and experimentally testified that the value of bandgap energy (Eg) should increase after Y doping into ZnO crystal lattice.…”

Yttrium-Doped ZnO Nanorod Arrays for Increased Charge Mobility and Carrier Density for Enhanced Solar Water Splitting

“…Yttrium doped ZnO is well known for its conductivity in the strongly n-type semiconductor, [16][17][18][19][20] leading to applications as a transparent conducting oxide, 21,22 gas ionization and humidity sensor. 23,24 Favourable optical properties of Y doped ZnO have led to applications as a photoanode in organic light emitting diodes, 25 displaying enhanced UV emission.…”

Effects of curing temperature on physical properties of hydrothermally-grown yttrium-doped ZnO nanorods

“…In the hydrothermal synthesis of ZnO (i.e., [17], the amount of hydroxide impacts on the nucleation of ZnO. In this case, if hydroxide is abundant, the chemical potential would be increased in the environmental chemical reaction system [18]. This gives rise to the reduction of the driving force so that ZnO grows with a lot of grain boundaries.…”