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Interceram - International Ceramic Review

, Volume 66, Issue 5, pp 166–170 | Cite as

Effect of Two Different Types of Capping Agents on the Synthesis and Characterisation of Zinc Oxide

High-Performance Ceramics

Abstract

Zinc oxide was functionalised by a solid state process using two capping agents: PEG (polymer) and CTAB (surfactant). The phases that formed were identified by XRD and crystallite size was determined using Scherer’s formula. With PEG, the crystallite size was found to vary between 20 and 50 nm. Using CTAB, the range was from about 38 to 30 nm. The morphology of the synthesised samples was identified using FESEM. Cube-like features were obtained using PEG as surfactant whereas rod-like morphology was formed with CTAB. M-O coordination and symmetric-asymmetric bonding information was obtained from FTIR analysis of both the PEG- and CTAB-assisted ZnO. Band gap for both cases was evaluated using Tauc plots from UV-VIS spectra. The band gap was found to vary with PEG and CTAB concentration increases in reversed manner, and was noted to be close in value to semiconductor materials.

Keywords

ZnO morphology symmetric-asymmetric bonding band gap 

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Copyright information

© Springer Fachmedien Wiesbaden GmbH, part of Springer Nature 2017

Authors and Affiliations

  1. 1.Amity School of Engineering & TechnologyAmity University KolkataKolkataIndia
  2. 2.Department of Metallurgical & Materials EngineeringJadavpur UniversityKolkataIndia

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