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Effect of Ba2+ Doping on the Crystal Structure and Optical Band Gap of NdFeO3 Orthoferrite | ||
| Progress in Physics of Applied Materials | ||
| دوره 6، شماره 2 - شماره پیاپی 11، مهر 2026، صفحه 117-126 اصل مقاله (1.07 M) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22075/ppam.2025.38809.1168 | ||
| نویسندگان | ||
| Mansoureh Pourjafar؛ Davoud Sanavi Khoshnoud* | ||
| Faculty of Physics, Semnan University P. O. Box 35195-363, Semnan, Iran | ||
| تاریخ دریافت: 04 شهریور 1404، تاریخ بازنگری: 03 آبان 1404، تاریخ پذیرش: 20 آبان 1404 | ||
| چکیده | ||
| In this study, neodymium was substituted by divalent barium ion (Ba²⁺) at various concentrations (x = 0, 0.1, 0.2, 0.3, and 0.4) in the neodymium orthoferrite structure, forming the composition Nd₁₋ₓBaₓFeO₃ via the sol–gel method. To evaluate the effects of Ba²⁺ substitution, detailed structural and optical characterizations were conducted at room temperature. The results indicated that, with increasing barium content, the unit cell volume, the average Fe–O–Fe bond length, and the tolerance factor exhibited an increasing trend. In contrast, the orthorhombic strain and the octahedral distortion angle of the FeO₆ decreased progressively with higher Ba²⁺ concentrations. These structural changes suggest a reduction in lattice distortion, indicating a gradual evolution of the crystal symmetry toward a higher-symmetry (tetragonal) phase. Furthermore, optical characterization revealed a significant reduction in the optical band gap, decreasing from 2.15 eV for the NdFeO3 sample to 1.28 eV for the sample with x = 0.4. This reduction can be attributed to modifications in the electronic structure and the enhancement of optical properties induced by Ba²⁺ substitution. These findings highlight the potential of Ba-doped NdFeO₃ for real world applications, including visible light photo-catalysis, gas and chemical sensors, optoelectronic devices, and photo-electrochemical systems. | ||
| کلیدواژهها | ||
| NdFeO3؛ Sol-gel method؛ Crystal structure؛ Optical band gap | ||
| مراجع | ||
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[1] Wu, Z.L., Zhang, R., Zhao, M., Fang, S.M., Han, Z.X., Hu, J.F. and Wang, K.Y., 2012. Effect of Pd doping on the acetone-sensing properties of NdFeO3. International Journal of Minerals, Metallurgy, and Materials, 19(2), pp.141-145.
[2] Li, X.B., Gao, C., Sun, S., Huang, L.L., Zhou, H., Wu, B.X., Zheng, L.H., Kang, X.F., Zhao, Y.X., Wang, F.P. and Zhang, J.B., 2024. Ethanolamine gas sensors based on NdFeO3 modified hexagonal pyramid shaped ZnO nanocrystals. Ceramics International, 50(15), pp.26311-26324.
[3] Guo, J., Ma, S., Ma, N., Liu, J., Wei, J., Xu, C., Fan, G. and Ni, P., 2024. Hydrothermal synthesis of NdFeO3 nanoparticles and their high gas-sensitive properties. Ceramics International, 50(21), pp.43654-43664.
[4] Omari, E. and Omari, M., 2022. Enhancing catalytic activity of NdFeO3 perovskite by tuning A-site cation deficiency for oxygen evolution reaction. International Journal of Hydrogen Energy, 47(32), pp.14542-14551.
[5] Al-Abbad, E.A., Aadil, M., Aldrdery, M., Alkhaldi, N.D., Khalid, A., Alrahili, M.R., Algarni, M., El Jery, A. and El-Aassar, M.R., 2024. Nanostructured codoped neodymium orthoferrite synthesized via the hydrothermal route for photocatalytic annihilation of crystal violet dye. Ceramics International, 50(24), pp.54943-54954.
[6] Ukorah, I.N., Owolabi, A.J., Ali, H., Onimisi, M.Y., Tafida, R.A., Olalekan, A.J., Gambo, H.M., Usman, S.L., Christiana, A.O., Ukwenya, J.M. and Akinade, B.J., 2024. Investigating the Performance of TIN-Based Perovskite Solar Cell with Zinc Selenide as an ETM and Graphene as an HTM Using SCAPS-1D. Progress in Physics of Applied Materials, 4(2), pp.171-181.
[7] Warshi, M.K., Mishra, V., Sagdeo, A., Mishra, V., Kumar, R. and Sagdeo, P.R., 2018. Structural, optical and electronic properties of RFeO3. Ceramics International, 44(7), pp.8344-8349.
[8] Rajabi, Y., Gholizadeh, A. and Gorzoddin, M., 2025. Investigating the Nonlinear Optical Behavior of La1-xCaxCo0.5Mg0.5O3 Perovskites. Progress in Physics of Applied Materials, 5(1), pp.47-62.
[9] Nakhaei, M., Khoshnoud, D.S., Bremholm, M., Nobre, M.A. and Khonakdar, H.A., 2023. Effects of Al doping on physical properties and photocatalytic activity of neodymium orthoferrite. Journal of Sol-Gel Science and Technology, 105(1), pp.246-265.
[10] Kotnana, G. and Hong, S., 2025. Recent Progress on Rare Earth Orthoferrites for Gas-Sensing Applications. Chemosensors, 14(5).
[11] Bez, R., Maayoufi, A.E., Bouhmouche, A., Moubah, R. and Mliki, N.T., 2024. Structural, dielectric, optical and electronic properties of NdFeO3: experimental and computational study. Journal of Materials Science: Materials in Electronics, 35(20), p.1403.
[12] Qamar, F., Sharma, S. and Khan, S., 2024. Effect of Ce3+ ion substitution on the structural, optical, electrical and ferroelectric properties of NdFeO3 nanoparticles. Applied Physics A, 130(9), p.626.
[13] Li, X.B., Zhou, H., Huang, L.L., Gao, C., Zhang, Q.Q., Wu, B.X., Sun, S. and Wang, A.Q., 2025. Detection of formaldehyde sensitive properties of Sm3+ doped NdFeO3. Journal of Alloys and Compounds, 1010, p.176933.
[14] Kashyap, S.J., Sankannavar, R. and Madhu, G.M., 2022. Insights on the various structural, optical and dielectric characteristics of La1-xcaxFeO3 perovskite-type oxides synthesized through solution-combustion technique. Applied Physics A, 128(6), p.518.
[15] Nandy, S., Theingi, M., Ghosh, S., Chae, K.H. and Sudakar, C., 2024. Influence of local structure and metal-oxygen hybridization on the electrical and magnetic properties of alkaline earth metal (Mg2+, Ca2+, Sr2+) substituted LaFeO3 ceramics. Journal of Applied Physics, 136(10).
[16] Wang, M., Cheng, L., Huang, L., Pan, S., Yao, Q., Hu, C., Liang, Q. and Zhou, H., 2021. Effect of Sr doped the YFeO3 rare earth ortho-ferrite on structure, magnetic properties, and microwave absorption performance. Ceramics International, 47(24), pp.34159-34169.
[17] Ali, S.A., Naseem, S., Khan, W. and Nambissan, P.M.G., 2019, December. Alkaline earth cation substitution effects in LaFeO3 OrthoFerrite nanocrystals studied by positron annihilation. In AIP Conference Proceedings (Vol. 2182, No. 1, p. 050028). AIP Publishing LLC.
[18] Nakhaei, M. and Khoshnoud, D.S., 2019. Influence of particle size and lattice distortion on magnetic and dielectric properties of NdFeO3 orthoferrite. Physica B: Condensed Matter, 553, pp.53-58.
[19] Berezhnaya, M.V., Perov, N.S., Almjasheva, O.V., Mittova, V.O., Nguyen, A.T., Mittova, I.Y., Druzhinina, L.V. and Alekhina, Y.A., 2019. Synthesis and magnetic properties of barium-doped nanocrystal lanthanum orthoferrite. Russian Journal of General Chemistry, 89(3), pp.480-485.
[20] Makhdoom, A.R., Shah, S.M., Mahmood, T., Iqbal, M.J., Akhtar, M.J. and Rafiq, M.A., 2019. Enhancement of ferromagnetism by suppression of spiral spin structure in Ba doped BiFeO3. Journal of Magnetism and Magnetic Materials, 484, pp.286-290.
[21] Hait, S., Ghose, S. and Mandal, K., 2020. Effect of Ba and Y co-doping on the structural and magneto-electric properties of BiFeO3 ceramic. Journal of Alloys and Compounds, 822, p.153614.
[22] Dehno, R.T. and Khoshnoud, D.S., 2022. Multiferroic properties in Sm1-xErxFeO3 ceramics. Journal of Magnetism and Magnetic Materials, 541, p.168515.
[23] Pourjafar, M. and Khoshnoud, D.S., 2025. A comparative study on effects of magnesium substitution at Nd and Fe-sites on the structural, optical, magnetic, and dielectric properties of neodymium orthoferrite. Results in Physics, p.108496.
[24] Ghasemi, E. and Khoshnoud, D.S., 2025. The effect of Mg doping on spin reorientation transition and physical properties of SmFeO3. Journal of Materials Science: Materials in Electronics, 36(5), p.304.
[25] Nakhaei, M., Nobre, M.A., Khoshnoud, D.S., Bremholm, M. and Khonakdar, H.A., 2025. Chemical synthesis, structural and magnetic properties of Al-doped neodymium orthoferrite. Journal of Alloys and Compounds, 1010, p.176987. [26] Gao, X., Ji, Y., Wang, M. and Liang, Q., 2024. Effect of Ba substitution on structure, magnetic properties and microwave properties of NdFeO3. Materials Today Communications, 38, p.108264.
[27] Kumar, D., Yadav, S., Singh, C.B., Yadav, R.S., Rai, S.B. and Singh, A.K., 2023. Impact of Sr2+ doping on the structural, dielectric, ferroelectric and optical properties of YFeO3 perovskite phosphor. Journal of Alloys and Compounds, 945, p.169286.
[28] Muneeswaran, M., Jang, J.W., Jeong, J.H., Akbari-Fakhrabadi, A. and Giridharan, N.V., 2019. Effect of dopant-induced defects on structural, electrical, and enhanced ferromagnetism and magnetoelectric properties of Dy and Sr co-doped BiFeO3. Journal of Materials Science: Materials in Electronics, 30(8), pp.7359-7366.
[29] Arabi, A., Fazli, M. and Ehsani, M.H., 2022. Photocatalytic activity of the La0.7Ca0.3MnO3 nanorods. Progress in Physics of Applied Materials, 2(2), pp.123-131.
[30] Abdullah, B.J., 2022. Size effect of band gap in semiconductor nanocrystals and nanostructures from density functional theory within HSE06. Materials Science in Semiconductor Processing, 137, p.106214.
[31] Singh, M., Goyal, M. and Devlal, K., 2018. Size and shape effects on the band gap of semiconductor compound nanomaterials. Journal of Taibah University for Science, 12(4), pp.470-475.
[32] Mishra, S., Pandey, B.K., Jaiswal, R.L. and Gupta, J., 2024. Unified model for the studies of band gap of nanosolids with their varying shape and size. Chemical Physics Letters, 841, p.141177.
[33] Duyen, P.T.H., Diem, C.H. and Tien, N.A., 2022. Cd-doped NdFeO3 nanoparticles: synthesis and optical properties study. Journal of Materials Science: Materials in Electronics, 33(7), pp.3546-3555.
[34] Chung, N.T.K., Tien, N.A., Diem, C.H. and Vuong, B.X., 2022. Structural and optical properties of Sr-doped NdFeO3 nanoparticles prepared by a simple co-precipitation method. Journal of Chemical Sciences, 134(1), p.34.
[35] Liang, N., Wang, C., Yao, X., Wang, X., Yan, T., Wang, R., Jin, Q., Guo, X., Guo, E., Ge, C. and He, M., 2024. Structure evolution and energy band modulation in Ba-doped BiFeO3 thin films. Journal of Applied Physics, 135(4).
[36] Srinatha, N., Reddy, S.S., Al-Dossari, M., Gurushantha, K., Abd EL-Gawaad, N.S., Manjunatha, S.O., Kumar, K.R., Kumar, M.S., Tangod, V.B. and Madhu, A., 2024. Effect of aliovalent substitution in the band structure engineered Ca2+-doped LaFeO3 nanoparticles for visible light-induced photocatalytic studies. Ceramics International, 50(1), pp.1836-1848.
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