Morphology effect of the ZnO surface via organic etchants for photon extraction in III-nitride emitters

• Main Authors: Su, Pei-Chen, Yoon, Yong-Jin, Oh, S., Kim, S., Shin, S.-C., Lee, K. J., Kim, S.-J., Choi, H., Park, S.-J., Kim, K.-K.
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Emitter; Nanopatterning; DRNTU::Engineering::Mechanical engineering
• Online Access: https://hdl.handle.net/10356/85356; http://hdl.handle.net/10220/48203
• Institution: Nanyang Technological University

We demonstrate that the morphology effect on the ZnO surface using organic acids significantly improves the photon extraction efficiency of III-nitride emitters. Oxalic ((C2H2O4), citric (C6H8O7), and formic (CH2O2) acids were used for modulating the nanostructured surface of the ZnO layer with vari...