1. Metal oxides as photocatalysts;Khan;J. Saudi Chem. Soc.,2015
2. Metal oxide sensors;Meixner;Sens. Actuators B,1996
3. Chapter 2: Solution processed metal oxide thin films for electronic applications;He;Metal oxide semiconductors and conductors.,2020
4. https://www.researchgate.net/post/What-is-fundamental-introduction-and-principle-for-p-type-or-n-type-metal-oxide-semiconductors. [last accessed: 20/07/2022].
5. Characterization of transition metal oxide/ silicon heterojunctions for solar cells application;Gerling;Applied Science,2015