Paper Titles
Bibliometric Overview of Research on Materials for Microbial Fuel Cells: Catalysts and Coatings as Key Factors for Efficiency
p.3
Trends in Functional Materials for Energy Conversion of Perovskites and Graphene: A Bibliometric Analysis since 2010-2025
p.13
Tunable Electronic and Optical Properties of Silicene Quantum Dots under External Electric Fields: A DFT Investigation
p.23
Humidity Sensor Based on LaFe₀.₈₅Mn₀.₁₅O₃ Perovskite Prepared by Sol Gel Method
p.39
Fast Response and Stable Humidity Sensing Performance of La0.9Mg0.1FeO3 Perovskite Material
p.49
Impedance Spectroscopy Study of Mg4Nb2O9 - TiO2 Composites for Ceramic Capacitors Applications
p.57
Adsorption of Remazol Brilliant Blue R Dye Using N-Doped Carbon Based on Palm Empty Fruit Bunches Modified with Magnetite
p.71
Sustainable Air Quality: Leveraging Cellulose Acetate for Sustainable Air Purification
p.85
Comparative Characterization of Biomass-Derived Carbons from Coconut Shell and Rice Husk: Structural, Thermal, Elemental, and Optical Properties
p.93

Fast Response and Stable Humidity Sensing Performance of La0.9Mg0.1FeO3 Perovskite Material

Article Preview

Abstract:

Humidity sensors play a vital role in various industrial and environmental monitoring applications that require accurate and stable detection of moisture. In this study, La0.9Mg0.1FeO3 perovskite was synthesized via a sol–gel method, in which Mg2+ ions were substituted at the A-site of lanthanum ferrite to enhance material performance. X-ray diffraction (XRD) analysis confirms the formation of a single-phase orthorhombic perovskite structure with a Pnma space group, indicating successful phase formation without detectable secondary phases. Scanning electron microscopy (SEM) observations reveal a relatively homogeneous surface morphology with nearly spherical or polygonal grains and well-defined grain boundaries. A sensing layer was fabricated by drop-casting the synthesized material onto an interdigital alumina (IDT) substrate, and its capacitance response was measured using an LCR meter over a relative humidity (RH) range of 11%–96% at room temperature. The sensor shows stable performance after 30 days of testing, with response and recovery times of 9.8 s and 1.7 s, respectively. These results suggest that A-site Mg2+ substitution modifies the structural and electrical characteristics of LaFeO3 and supports the potential of La0.9Mg0.1FeO3 for capacitive humidity sensing applications.

You might also be interested in these eBooks
Pollutants Removal and Materials for Energy Conversion and Electronics View Preview

Info:

Periodical:

Advanced Materials Research (Volume 1190)

Pages:

49-55

DOI:

https://doi.org/10.4028/p-b4JIqG

Citation:

Cite this paper

Online since:

July 2026

Authors:

Hoerudin Bayu Hidayah, Djoko Triyono*, Akhmad Futukhillah Fataba Alaih, Rifqi Almusawi Rafsanjani, Nova Nur Elisa Dewi

Keywords:

A-Site Substitution, Capacitive Humidity Sensor, La0.9Mg0.1FeO3

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2026 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] Z. Duan, M. Xu, T. Li, Y. Zhang, and H. Zou, "Super-fast response humidity sensor based on La0.7Sr0.3MnO3 nanocrystals prepared by PVP-assisted sol-gel method," Sens. Actuators B Chem., vol. 258, p.527–534, Apr. 2018.

DOI: 10.1016/J.SNB.2017.11.169

Google Scholar

[2] Efriyadi, M. A. Dwiputra, and D. Triyono, "Study of humidity sensing properties of TiO2/Ethyl cellulose (EC) composite," Mater. Today Proc., vol. 66, p.2474–2477, Jan. 2022.

DOI: 10.1016/J.MATPR.2022.06.450

Google Scholar

[3] J. Zhao et al., "Highly sensitive humidity sensor based on high surface area mesoporous LaFeO3 prepared by a nanocasting route," Sens. Actuators B Chem., vol. 181, p.802–809, 2013.

DOI: 10.1016/j.snb.2013.02.077

Google Scholar

[4] R. Douani et al., "Improvement of humidity sensing performance of BiFeO3 nanoparticles-based sensor by the addition of carbon fibers," Sens. Actuators A Phys., vol. 307, Jun. 2020.

DOI: 10.1016/j.sna.2020.111981

Google Scholar

[5] M. Kumar, D. V. Singh, S. Dabas, A. N. Srivastva, D. K. Dwivedi, and P. Kumar, "Perspective—Latest Updates and Future Perspectives on Perovskite Materials Based Humidity Sensors," J. Electrochem. Soc., vol. 171, no. 12, p.127508, Dec. 2024.

DOI: 10.1149/1945-7111/ad97e4

Google Scholar

[6] A. Boulahouache, M. Benlembarek, N. Salhi, A. M. Djaballah, C. Rabia, and M. Trari, "Preparation, characterization and electronic properties of LaFeO3 perovskite as photocatalyst for hydrogen production," Int. J. Hydrogen Energy, vol. 48, no. 39, p.14650–14658, May 2023.

DOI: 10.1016/j.ijhydene.2022.12.327

Google Scholar

[7] Y. Guan et al., "Band gap regulation of LaFeO3 via doping Sr for efficient conversion of coke and steam," Ceram. Int., vol. 50, no. 12, p.21526–21537, Jun. 2024.

DOI: 10.1016/J.CERAMINT.2024.03.266

Google Scholar

[8] D. Triyono, R. W. Utami, H. Laysandra, and R. A. Susilo, "Structural, magnetic and electrical properties of La1-xMgxFeO3 perovskites," Ceram. Int., vol. 48, no. 4, p.4595–4603, Feb. 2022.

DOI: 10.1016/j.ceramint.2021.10.246

Google Scholar

[9] J. Qin, Z. Cui, X. Yang, S. Zhu, Z. Li, and Y. Liang, "Three-dimensionally ordered macroporous La1-xMgxFeO3 as high performance gas sensor to methanol," J. Alloys Compd., vol. 635, p.194–202, Jun. 2015.

DOI: 10.1016/j.jallcom.2015.01.226

Google Scholar

[10] A. Herawati et al., "Site-specific Mg doping in LaFeO3 perovskites: Tuning photophysical behavior and trap-state dynamics," Mater. Sci. Semicond. Process., vol. 207, no. 38, p.110507, Jun. 2026.

DOI: 10.1016/j.mssp.2026.110507

Google Scholar

[11] N. N. Elisa Dewi, R. Maulidia, D. Triyono, R. A. Rafsanjani, and I. Sugihartono, "The Influence of Mg Substitution at A and B-Sites on the Structural and Optical Properties of LaFeO3 Perovskites," J. Phys. Conf. Ser., vol. 3139, no. 1, p.012017, 2025.

DOI: 10.1088/1742-6596/3139/1/012017

Google Scholar

[12] R. J. D. Tilley, "Perovskites Structure-Property Relationships," 2016. [Online]. Available: www.wiley.com.

Google Scholar

[13] A. F. F. Alaih, D. Triyono, M. A. Dwiputra, and F. A. A. Nugroho, "Ultrafast and low-hysteresis humidity sensors based on mesoporous LaFe0.925Ti0.075O3 perovskite," Sens. Actuators B Chem., vol. 412, p.135810, Aug. 2024.

DOI: 10.1016/J.SNB.2024.135810

Google Scholar

[14] M. Kumari, N. Dhariwal, P. Yadav, V. Kumar, and O. P. Thakur, "Urea modified Cu-doped LaFeO3 nano-particles for humidity sensing with contactless moisture detection for medical and agricultural application," Sens. Actuators B Chem., vol. 423, Jan. 2025.

DOI: 10.1016/j.snb.2024.136749

Google Scholar

[15] C. Jesica Anjeline and N. Lakshminarasimhan, "Interfacial proton conduction in high-dielectric-constant spinel-perovskite NiFe2O4–LaFeO3 nanocomposite probed by impedimetric humidity sensing," Ceram. Int., vol. 48, no. 21, p.32536–32539, Nov. 2022.

DOI: 10.1016/J.CERAMINT.2022.07.217

Google Scholar