Temperature shock to manipulate the optical properties of Al-doped ZnO films

Abstract

We constructed the 2 × 2 × 2 Aluminum-doped Zinc Oxide (AZO) supercrystal cell structure and developed the temperature shock experiment at −40 °C–85 °C. The results showed that the temperature shock can increase the absorption rate of AZO, decrease the transmittance and the band gap of AZO, and change the density of electronic states near the Fermi level. The AZO films were also subjected to temperature shock of −40°C–85 °C, it shows that the transmittance and band gap of AZO films both decreased after temperature shock. The experimental results show that the temperature shock reduce the transmittance and the band gap width of the AZO films. The results are hoped to be helpful to understand the degeneration and improvement of the optical properties of AZO films under temperature shock loading and predict the performance of AZO films.