Tuning the morphology of SrTiO3 nanocubes and their enhanced electrical conductivity

Putri, Yulia Eka and Wendari, Tio Putra and Rahmah, Annisa Aulia and Refinel, Refinel and Mohd Said, Suhana and Sofyan, Nofrijon and Wellia, Diana Vanda (2022) Tuning the morphology of SrTiO3 nanocubes and their enhanced electrical conductivity. Ceramics International, 48 (4). pp. 5321-5326. ISSN 0272-8842, DOI https://doi.org/10.1016/j.ceramint.2021.11.075.

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Strontium titanate (SrTiO3) nanocubes were prepared via the solvothermal method in an isopropanol-water system, using cetyltrimethylammonium bromide (CTAB) as a capping agent and tert-butylamine (TBA) as a mineralizer. We found that the presence of TBA produced a synergistic effect in the nucleation and growth of SrTiO3 in the solution, which enabled control over the formation of well-defined cubic particles. X-ray diffraction patterns of SrTiO3, synthesized with the addition of 1 mol of TBA, showed a perovskite structure with high crystallinity. The presence of specific absorption peaks in the fourier-transform infrared (FTIR) spectrum confirmed the existence of CTAB and TBA on the surface of the particles. Transmission electron microscope (TEM) images showed that the sharp-edged cubic particles had narrow size distributions, and selected area electron diffraction (SAED) patterns indicated a high crystallinity. An increase in electrical conductivity values was found in the bulk samples with regular nanocube particles compared to those of non-regular nanocubes.

Item Type: Article
Funders: Faculty of Mathematics and Natural Sciences of Universitas Andalas through a research fund of Dana PNBP Fakultas MIPA Universitas Andalas [13/UN.16.03]
Uncontrolled Keywords: Nanocube; Perovskite; Capping agent; Mineralizer; Electrical conductivity
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering > Department of Electrical Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 07 Aug 2022 23:59
Last Modified: 07 Aug 2022 23:59
URI: http://eprints.um.edu.my/id/eprint/33357

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