Surface and optical characteristics of polycrystalline GaN layer with different pores profile of porous GaAs/GaAs substrate

• Main Authors: Md Taib, Muhamad Ikram, Samsudin, Muhammad Esmed Alif, Alias, Ezzah Azimah, Waheeda, S.N., Ibrahim, Nurul Farhana, Shuhaimi, Ahmad, Zainal, Norzaini
• Format: Article
• Published: IOP Publishing 2019
• Subjects: Q Science (General); QC Physics
• Online Access: http://eprints.um.edu.my/24077/; https://doi.org/10.1088/2053-1591/ab1dd4

This work investigated the influence of pores profile of a porous GaAs/GaAs substrate on surface and optical characteristics of an over-deposited GaN layer. Different pores profile of the porous GaAs/GaAs substrate was introduced by varying the DMF concentration of 50%, 75% and 90%. The pores distri...