Electrospun Nanofibers Based on Gallium Oxide: Fabrication and Characterization

Authors

A.V. Rybalka ¹ , P.P. Snetkov ¹ , S.N. Morozkina ¹ , A.E. Romanov ¹

¹ Institute of Advanced Data Transfer Systems, ITMO University, Kronverkskiy pr., 49, bldg. A, Saint Petersburg, 197101, Russia

10.17586/2687-0568-2025-7-2-105-113

Rev. Adv. Mater. Technol., 2025, vol. 7, no. 2, pp. 105–113

Abstract

Currently, nanofibrous semiconductor materials having large surface area and wide bandgap are in demand for modern technological processes, from fabrication of optoelectronic devices to photocatalytic facilities. Ga2O3 is the most suitable semiconductor for such materials due to its unique properties, wide bandgap equal to ~4.8 eV, and high acid resistance. In this study, Ga2O3-nanofibers were fabricated by electrospinning technique from the polymer spinning solutions based on polyvinylpyrrolidone. The fabrication procedure consists of two stages: electrospinning of nanofibers loaded with the gallium oxide precursor and annealing of nanofibers obtained for polymer removal and Ga2O3 formation. Influence of annealing temperature on the fiber morphology and its optic-electronic properties were demonstrated. Results obtained provide experimental basis for further fabrication of metal-oxide nanofibers, including doped ones, for high effective devices

Keywords

Electrospinning; Nanofibers; Gallium oxide; Size distribution; Bandgap

Foundings

Ministry of Science and Higher Education of the Russian Federation: FSER-2025-0005

References

1. J. Zhang, J. Shi, D.-C. Qi, L. Chen, K.H.L. Zhang, Recent progress on the electronic structure, defect, and doping properties of Ga203, APL Mater., 2020, vol. 8, no. 2, art. no. 020906.
2. W. Zhang, Z. Xiang, T. Ma, B. Bian, J. Liu, Y. Wu, Y. Liu, J. Shang, R.-W. Li, Self-supported BGa O3 nanowires and for stretchable solar-blind UV photodetectors, Sci. Rep., 2025, vol. 15, art. no. 17416.
3. H. Zhai, Z. Wu, Z. Fang, Recent progress of Ga2O3-based gas sensors, Ceram. Int., 2022, vol. 48. no. 17, pp. 24213 24233 .
4. J. Hu, B. Yu, J. Zhou, New generation beta-gallium oxide nanomaterials: Growth and performances in electronic devices, Adv. Eng. Mater., 2023, vol. 25, no. 19, art. no. 2300688.
5. J. Wang, W. Fu, W. Xu, M. Wu, Y. Sun, Y. Dai, Oxide nanofibers as catalysts toward energy conversion and environmental protection, Chem. Res. Chin. Uniy., 2021, vol. 37, pp. 366-378 .
6. X. Zhang, J. Zhang, C. Li, X. Zhang, J. Yun, D. Cao, A review on nanofiber-based composites for toxic and flammable gas sensing, Adv. Compos. Hybrid Mater., 2024. vol. 7. art. no. 108.
7. A. Serik, N. Idrissov, A. Baratov, A. Dikov, S. Kislitsin, C. Daulbayev, Z. Kuspanov, Recent progress in photocatalytic applications of electrospun nanofibers: A review, Molecules, 2024, vol. 29, no. 20, art. no. 4824.
8. M. Jędrzejczyk, K. Zbudniewek, J. Rynkowski, V. Keller, J. Grams, A.M. Ruppert, N. Keller, Wide band gap Ga2O3 as efficient UV-C photocatalyst for gas-phase degradation applications, Environ. Sci. Pollut. Res., 2017, vol. 24, pp. 26792-26805 .
9. S. Ganguly, K. Nama Manjunatha, S. Paul, Advances in gallium oxide: Properties, applications, and future prospects, Adv. Electron. Mater., 2025, vol. 11, no. 7, art. no. 2400690.
10. P.P. Snetkov, S.N. Morozkina, I.M. Sosnin, D.A. Bauman, I. Hussainova, A.E. Romanov. Electrospinning as a method for fabrication of nanofibrous photocatalysts based on gallium oxide, Phys. Status Solidi A, 2025, vol. 222, no. 4, art. no. 2400669.
11. P. Makula, M. Pacia, W. Macyk, How to correctly determine the band gap energy of modified semiconductor photocatalysts based on UV-Vis spectra, J. Phys. Chem. Lett., 2018, vol. 9, no. 23. pp. 6814 6817.
12. Y. Zhang, J. Yang, Q. Li, X. Cao, Preparation of Ga2O3 nanoribbons and tubes by electrospinning, J. Cryst. Growth, 2007, vol. 308, no. 1, pp. 180 184.
13. N. Makeswaran, J.P. Kelly, J.J. Haslam, J.T. McKeown, M.S. Ross, C.V. Ramana, Electronic and optical properties of Ga203 nanostructures, ACS Omega, 2022, vol. 7. no. 36. pp. 32816 32826 .
14. F. Shi, H. Qiao, Preparations, properties and applications of gallium oxide nanomaterials - review, Nano Select, 2022, vol. 3, no. 2, pp. 348-373 .

Volume 7, No 2

pages 105-113

Files

full text article

abstract

XML file

History

Receive Date: 30 May 2025

Accepted Date: 10 June 2025

Available online: 15 June 2025

© 2025 ITMO University.
This is an open access article under the terms
of the CC BY-NC 4.0 license.
Metadata is available under the terms of the CC BY 4.0 license