Correlation between the particle size, structural and photoluminescence spectra of nano NiCr2O4 and La doped NiCr2O4 materials

C Ragupathi; S Narayanan; P Tamizhdurai; T A Sukantha; G Ramalingam; M P Pachamuthu; V L Mangesh; Nadavala Siva Kumar; Ahmed S Al-Fatesh; Samsudeen Olajide Kasim

doi:10.1016/j.heliyon.2023.e21981

Correlation between the particle size, structural and photoluminescence spectra of nano NiCr₂O₄ and La doped NiCr₂O₄ materials

Heliyon. 2023 Nov 7;9(11):e21981. doi: 10.1016/j.heliyon.2023.e21981. eCollection 2023 Nov.

Authors

Affiliations

¹ Department of Chemistry, Sriram College of Arts and Science, Perumalpattu, Tiruvallur, 602024, Tamil Nadu, India.
² Research and Development, Manali Petrochemicals Ltd., Ponneri High Road, Manali, Chennai, Tamil Nadu, 600068, India.
³ Department of Chemistry, Dwaraka Doss Goverdhan Doss Vaishnav College (Autonomous) (Affiliated to the University of Madras, Chennai), 833, Gokul Bagh, E.V.R. Periyar Road, Arumbakkam, Chennai, 600106, Tamil Nadu, India.
⁴ Department of Chemistry, K.S. Rangasamy College of Technology, Tiruchengode, 637215, India.
⁵ Quantum Materials Research Lab(QMRL), Department of Nanoscience and Technology, Alagappa University, Karaikudi, 630003, Tamil Nadu, India.
⁶ Department of Chemistry, Bannari Amman Institute of Technology, Sathyamangalam, 638401, Erode, Tamil Nadu, India.
⁷ Department of Marine Engineering, Indian Maritime University, 600119, India.
⁸ Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh, 11421, Saudi Arabia.
⁹ School of Photovoltaic and Renewable Energy Engineering (SPREE), Faculty of Engineering University of New South Wales (UNSW), Kensington, NSW, 2052, Australia.

Abstract

Nano NiCr₂O₄ undoped and La doped NiCr₂O₄ nanorods array were successfully prepared by solution based conventional method[sbcm]. The synthesized samples were characterized by the diffuse reflectance spectroscopy (DRS) and photoluminescence (PL) spectroscopy for finding optical properties. Further, the samples structure confirmed by Fourier transforms infrared (FTIR), and X-ray diffraction (XRD)techniques. High-resolution transmission electron microscopy (HRTEM) analysis revealed the attachment of NiCr₂O₄ nanorods on surface of nanoparticles. From the results, it was found that the reaction time, band gap energy, and particle size strongly influenced by changing the concentration of La in NiCr₂O₄. This work is notable for its examination of the impact of the precursor on the optical and structural characteristics of samples of La-doped and undoped NiCr₂O₄. This was the first time the investigation had been done. The average particle size of the La-doped and undoped NiCr₂O₄ samples is between 16 and 24 nm.

Keywords: Microstructure; Optical properties; Powders; Rare earths; Semiconductors.