Influence of pH on the Morphology Properties of ZnSe Thin Films Studied by Atomic Force Microscopy

• Main Author: Ho, Soon Min
• Format: Article
• Published: European Journal of Scientific Research 2011
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.intimal.edu.my/901/; http://www.europeanjournalofscientificresearch.com/

Abstract Zinc selenide thin films were deposited on microscope glass slide under various pH values such as pH 2, 3 and 4 using chemical bath deposition method. In this study, the grain size, film thickness and roughness of the deposited ZnSe films were characterized using atomic force microscopy technique. The surface morphology of the films deposited at pH 2 indicated uniform grain size and complete coverage over the substrate. However, the size of the granules increased as the pH was increased to pH 3 and 4. Also, the substrate surface was not covered completely at these pH values. The atomic force microscopy analysis showed that the pH values had great effect on the deposition of zinc selenide thin films.