Thanh bên bài viết
Số xuất bản:
2026: Bài chờ xuất bản chuyên san Khoa học Tự nhiên
Chuyên mục:
Khoa học Tự nhiên (Tiếng Anh)
Ngày xuất bản:
03/05/2026
Lượt xem
24
Lượt tải xuống
18
Trích dẫn bài báo
Duong, M. D., Mai, D. M. D., Nguyen, T. L., Hoang-Nguyen, Q.-A., & Do, H. B. (2026). Optimizing β-Ga₂O₃ nanorod morphology by controlling hydrothermal reaction time for uvc photodetection. Tạp chí Khoa học Đại học Đồng Tháp, Online First, 1-13. https://doi.org/10.52714/dthu.ns.3329.2004
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Optimizing β-Ga₂O₃ nanorod morphology by controlling hydrothermal reaction time for uvc photodetection
Nội dung chính của bài viết
Tóm tắt
Các thanh nano β-Ga₂O₃ được tổng hợp bằng phương pháp thủy nhiệt, sau đó được ủ nhiệt trong không khí ở 910 °C. Kết quả cho thấy thời gian phản ứng ảnh hưởng mạnh đến hình dạng của các thanh nano. Khi thời gian thủy nhiệt tăng lên, chiều dài các thanh nano tăng nhưng đồng thời hiện tượng kết tụ cũng bắt đầu xuất hiện. Thời gian tối ưu để đạt được sự cân bằng giữa việc làm tăng chiều dài các thanh nano đồng thời hạn chế việc chúng bị kết tụ lại là 7,5 giờ. Sau quá trình nung ở 910 °C, GaOOH đã chuyển hoàn toàn sang β-Ga₂O₃ có cấu trúc đơn tà. Kết quả đo FTIR cũng xác nhận sự hình thành liên kết Ga–O và sự suy giảm của các nhóm hydroxyl tương ứng với sự thay đổi của thời gian thủy nhiệt. Vật liệu β-Ga₂O₃ sau đó được sử dụng để chế tạo cảm biến GO/β-Ga₂O₃. Kết quả đo dòng điện – thời gian cho thấy linh kiện đóng ngắt ổn định khi được kích thích bởi tia UVC 254 nm, với độ nhạy 2,06×10⁻² A W⁻¹ và thời gian đáp ứng 1,6/2,7 s tại điện áp 10 V. Những kết quả này cho thấy tiềm năng ứng dụng của các thanh nano β-Ga₂O₃ trong cảm biến tia UVC.
Từ khóa
β-Ga2O3 nanorods, graphene oxide, hydrothermal method, UVC optical sensors, wide band gap materials
Chi tiết bài viết
Bài báo này được cấp phép theo Creative Commons Attribution-NonCommercial 4.0 International License.
Tài liệu tham khảo
Alhalaili, B., Bunk, R. J., Mao, H., Cansizoglu, H., Vidu, R., Woodall, J., & Islam, M. S. (2020). Gallium oxide nanowires for UV detection with enhanced growth and material properties. Scientific Reports, 10(1), 21434. https://doi.org/10.1038/s41598-020-78326-x
Chen, X., Ren, F., Gu, S., & Ye, J. (2019). Review of gallium-oxide-based solar-blind ultraviolet photodetectors. Photonics Research, 7(4), 381-415. https://doi.org/10.1364/prj.7.000381
Chou, H.-Y., Yadlapalli, B. K., Yen, C.-C., Singh, A. K., Chiang, J.-L., & Wuu, D.-S. (2023). Ga2O3 nanorods synthesized by hydrothermal method for dual-functional sensing of pH value and glucose. Sensors and Actuators A: Physical, 363, 114695. https://doi.org/https://doi.org/10.1016/j.sna.2023.114695
Do, H.-B., Le, D.-N., Nguyen, T.-H., Nguyen, V. T., Phan-Gia, A.-V., Hien, T. D., Le, H.-M., Pham, P. V., De Souza, M. M., & Nguyen Dang, N. (2024). Recycling of reduced graphene oxide from graphite rods in disposable zinc battery applicable to optical sensing. Ceramics International, 50(21, Part C), 43754-43762. https://doi.org/https://doi.org/10.1016/j.ceramint.2024.08.228
Do, H.-B., Nguyen, T.-H., Ngo, T.-H.-L., Phan-Gia, A.-V., Nguyen-Thuy-Ngoc, T., Huynh, T.-L., & Nguyen-Dang, N. (2026). Ga2O3-graphene oxide hybrid optical sensor. Materials Letters, 404, 139602. https://doi.org/https://doi.org/10.1016/j.matlet.2025.139602
Do, H.-B., Phan-Gia, A.-V., Nguyen, V. Q., & De Souza, M. M. (2022). Optimization of normally-off β-Ga2O3 MOSFET with high Ion and BFOM: A TCAD study. AIP Advances, 12(6). https://doi.org/10.1063/5.0094418
Feng, W., Wang, X., Zhang, J., Wang, L., Zheng, W., Hu, P., Cao, W., & Yang, B. (2014). Synthesis of two-dimensional β-Ga2O3 nanosheets for high-performance solar blind photodetectors. Journal of Materials Chemistry C 2(17), 3254-3259.
Galazka, Z., Uecker, R., Klimm, D., Irmscher, K., Naumann, M., Pietsch, M., Kwasniewski, A., Bertram, R., Ganschow, S., & Bickermann, M. (2017). Scaling-Up of Bulk β-Ga2O3 Single Crystals by the Czochralski Method. ECS Journal of Solid State Science and Technology, 6(2), Q3007. https://doi.org/10.1149/2.0021702jss
Guo, D., Xie, G., & Luo, J. (2013). Mechanical properties of nanoparticles: basics and applications. Journal of Physics D: Applied Physics, 47(1), 013001.
Hailin, M., & Yan, L. (2013). One-Step Preparation of β-Ga2O3 Nanomaterial and Research the Electrical Transport Properties at High Temperature. Rare Metal Materials and Engineering, 42(11), 2245-2247.
Hwang, W. S., Verma, A., Peelaers, H., Protasenko, V., Rouvimov, S., Seabaugh, A., Haensch, W., de Walle, C. V., Galazka, Z., & Albrecht, M. (2014). High-voltage field effect transistors with wide-bandgap β-Ga2O3 nanomembranes. Applied Physics Letters, 104(20).
Kang, B., Mang, S., Song, K., Lee, K., & Yoon, D. (2014). Hydrothermal synthesis and characterization of uniform β-Ga2O3 hollow nanostructures by carbon nanospheres. J. Ceram. Process. Res, 15(3), 200-203.
Khan, A., Jadwisienczak, W. M., & Kordesch, M. E. (2006). One-step preparation of ultra-wide β-Ga2O3 microbelts and their photoluminescence study. Physica E: Low-dimensional Systems and Nanostructures, 35(1), 207-211.
Khanh, N., Do, H.-B., Nguyen, T.-H., Ngo, T.-H.-L., Phan-Gia, A.-V., Tran, T. T. V., De Souza, M. M., Le, H.-M., Linh, L., Nawaz, M. H., Chuang, F.-C., Pham, P. V., & Nguyen Dang, N. (2026). Defect-Controlled Photoresponse in GaOOH/Reduced Graphene Oxide Composites for Ultraviolet-C Photodetectors. ACS Applied Electronic Materials, 8(9), 4336-4342. https://doi.org/10.1021/acsaelm.6c00519
Kokubun, Y., Miura, K., Endo, F., & Nakagomi, S. (2007). Sol-gel prepared β-Ga2O3 thin films for ultraviolet photodetectors. Applied Physics Letters, 90(3).
Kuramata, A., Koshi, K., Watanabe, S., Yamaoka, Y., Masui, T., & Yamakoshi, S. (2016). High-quality β-Ga2O3 single crystals grown by edge-defined film-fed growth. Japanese Journal of Applied Physics, 55(12), 1202A1202. https://doi.org/10.7567/jjap.55.1202a2
Kwon, Y., Lee, G., Oh, S., Kim, J., Pearton, S. J., & Ren, F. (2017). Tuning the thickness of exfoliated quasi-two-dimensional β-Ga2O3 flakes by plasma etching. Applied Physics Letters, 110(13).
Lee, E. J., Ribeiro, C., Longo, E., & Leite, E. R. (2005). Oriented attachment: An effective mechanism in the formation of anisotropic nanocrystals. The Journal of Physical Chemistry B, 109(44), 20842-20846.
Li, G., Peng, C., Li, C., Yang, P., Hou, Z., Fan, Y., Cheng, Z., & Lin, J. (2010). Shape-controllable synthesis and morphology-dependent luminescence properties of GaOOH: Dy3+ and β-Ga2O3: Dy3+. Inorganic Chemistry, 49(4), 1449-1457.
Mao, L., Wang, X., Huang, C., Ma, Y., Qin, F., Lu, W., Zhu, G., Shi, Z., Cui, Q., & Xu, C. (2025). Controllable hydrothermal synthesis of 1D β-Ga2O3 for solar-blind ultraviolet photodetection. Nanomaterials, 15(5), 402. https://www.mdpi.com/2079-4991/15/5/402
Mi, W., Ma, J., Luan, C., Lv, Y., Xiao, H., & Li, Z. (2012). Characterization of β-Ga2O3 epitaxial films grown on MgO (111) substrates by metal-organic chemical vapor deposition. Materials Letters, 87, 109-112. https://doi.org/https://doi.org/10.1016/j.matlet.2012.07.106
Oh, S., Kim, J., Ren, F., Pearton, S. J., & Kim, J. (2016). Quasi-two-dimensional β-gallium oxide solar-blind photodetectors with ultrahigh responsivity. Journal of Materials Chemistry C 4(39), 9245-9250.
Pearton, S. J., Yang, J., Cary, P. H., IV, Ren, F., Kim, J., Tadjer, M. J., & Mastro, M. A. (2018). A review of Ga2O3 materials, processing, and devices. Applied Physics Reviews, 5(1). https://doi.org/10.1063/1.5006941
Pilliadugula, R., & Krishnan, N. G. (2018). Gas sensing performance of GaOOH and β-Ga2O3 synthesized by hydrothermal method: a comparison. Materials Research Express, 6(2), 025027.
Qian, H.-S., Gunawan, P., Zhang, Y.-X., Lin, G.-F., Zheng, J.-W., & Xu, R. (2008). Template-free synthesis of highly uniform α-GaOOH spindles and conversion to α-Ga2O3 and β-Ga2O3. Crystal Growth and Design, 8(4), 1282-1287.
Reddy, L. S., Ko, Y. H., & Yu, J. S. (2015). Hydrothermal synthesis and photocatalytic property of β-Ga2O3 nanorods. Nanoscale Research Letters, 10, 1-7.
Ryou, H., Yoo, T. H., Yoon, Y., Lee, I. G., Shin, M., Cho, J., Cho, B. J., & Hwang, W. S. (2020). Hydrothermal synthesis and photocatalytic property of Sn-doped β-Ga2O3 nanostructure. ECS Journal of Solid State Science and Technology, 9(4), 045009. https://doi.org/10.1149/2162-8777/ab8b4b
Şenaslan, F., Taşdemir, M., & Çelik, A. (2021). Effect of working pressure and post-annealing on structural, optical and electrical properties of p-type NiO thin films produced by RF magnetron sputtering technique. Applied Physics A, 127(10), 739. https://doi.org/10.1007/s00339-021-04901-2
Sharma, S., & Sunkara, M. K. (2002). Direct synthesis of gallium oxide tubes, nanowires, and nanopaintbrushes. Journal of the American Chemical Society, 124(41), 12288-12293.
Shi, F., & Qiao, H. (2020). Influence of hydrothermal reaction time on crystal qualities and photoluminescence properties of β-Ga2O3 nanorods. Journal of Materials Science: Materials in Electronics, 31, 20223-20231.
Singh, N. S., Mia, A. K., & Giri, P. (2024). Role of oxygen functional groups and attachment of Au nanoparticles on graphene oxide sheets for improved photodetection performance. Nanoscale Advances, 6(8), 2136-2148. https://doi.org/10.1039/D3NA01120H
Wang, X., Qiao, H., Liu, T., Song, F., An, Z., Xu, Y., Zhang, L., & Shi, F. (2022). Ultraviolet photoluminescence of β-Ga2O3 microparticles synthesized by hydrothermal method. Journal of Materials Science: Materials in Electronics, 33(16), 13040-13050.
Yang, J. J., Zhao, Y., & Frost, R. L. (2009). Infrared and infrared emission spectroscopy of gallium oxide α-GaO (OH) nanostructures. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 74(2), 398-403.
Yoon, Y., Han, K. I., Kim, B. H., Lee, I. G., Kim, Y., Kim, J. P., & Hwang, W. S. (2018). Formation of β-Ga2O3 nanofibers of sub-50 nm diameter synthesized by electrospinning method. Thin Solid Films, 645, 358-362.
Zhao, W., Yang, Y., Hao, R., Liu, F., Wang, Y., Tan, M., Tang, J., Ren, D., & Zhao, D. (2011). Synthesis of mesoporous β-Ga2O3 nanorods using PEG as template: Preparation, characterization and photocatalytic properties. Journal of Hazardous materials, 192(3), 1548-1554.
Chen, X., Ren, F., Gu, S., & Ye, J. (2019). Review of gallium-oxide-based solar-blind ultraviolet photodetectors. Photonics Research, 7(4), 381-415. https://doi.org/10.1364/prj.7.000381
Chou, H.-Y., Yadlapalli, B. K., Yen, C.-C., Singh, A. K., Chiang, J.-L., & Wuu, D.-S. (2023). Ga2O3 nanorods synthesized by hydrothermal method for dual-functional sensing of pH value and glucose. Sensors and Actuators A: Physical, 363, 114695. https://doi.org/https://doi.org/10.1016/j.sna.2023.114695
Do, H.-B., Le, D.-N., Nguyen, T.-H., Nguyen, V. T., Phan-Gia, A.-V., Hien, T. D., Le, H.-M., Pham, P. V., De Souza, M. M., & Nguyen Dang, N. (2024). Recycling of reduced graphene oxide from graphite rods in disposable zinc battery applicable to optical sensing. Ceramics International, 50(21, Part C), 43754-43762. https://doi.org/https://doi.org/10.1016/j.ceramint.2024.08.228
Do, H.-B., Nguyen, T.-H., Ngo, T.-H.-L., Phan-Gia, A.-V., Nguyen-Thuy-Ngoc, T., Huynh, T.-L., & Nguyen-Dang, N. (2026). Ga2O3-graphene oxide hybrid optical sensor. Materials Letters, 404, 139602. https://doi.org/https://doi.org/10.1016/j.matlet.2025.139602
Do, H.-B., Phan-Gia, A.-V., Nguyen, V. Q., & De Souza, M. M. (2022). Optimization of normally-off β-Ga2O3 MOSFET with high Ion and BFOM: A TCAD study. AIP Advances, 12(6). https://doi.org/10.1063/5.0094418
Feng, W., Wang, X., Zhang, J., Wang, L., Zheng, W., Hu, P., Cao, W., & Yang, B. (2014). Synthesis of two-dimensional β-Ga2O3 nanosheets for high-performance solar blind photodetectors. Journal of Materials Chemistry C 2(17), 3254-3259.
Galazka, Z., Uecker, R., Klimm, D., Irmscher, K., Naumann, M., Pietsch, M., Kwasniewski, A., Bertram, R., Ganschow, S., & Bickermann, M. (2017). Scaling-Up of Bulk β-Ga2O3 Single Crystals by the Czochralski Method. ECS Journal of Solid State Science and Technology, 6(2), Q3007. https://doi.org/10.1149/2.0021702jss
Guo, D., Xie, G., & Luo, J. (2013). Mechanical properties of nanoparticles: basics and applications. Journal of Physics D: Applied Physics, 47(1), 013001.
Hailin, M., & Yan, L. (2013). One-Step Preparation of β-Ga2O3 Nanomaterial and Research the Electrical Transport Properties at High Temperature. Rare Metal Materials and Engineering, 42(11), 2245-2247.
Hwang, W. S., Verma, A., Peelaers, H., Protasenko, V., Rouvimov, S., Seabaugh, A., Haensch, W., de Walle, C. V., Galazka, Z., & Albrecht, M. (2014). High-voltage field effect transistors with wide-bandgap β-Ga2O3 nanomembranes. Applied Physics Letters, 104(20).
Kang, B., Mang, S., Song, K., Lee, K., & Yoon, D. (2014). Hydrothermal synthesis and characterization of uniform β-Ga2O3 hollow nanostructures by carbon nanospheres. J. Ceram. Process. Res, 15(3), 200-203.
Khan, A., Jadwisienczak, W. M., & Kordesch, M. E. (2006). One-step preparation of ultra-wide β-Ga2O3 microbelts and their photoluminescence study. Physica E: Low-dimensional Systems and Nanostructures, 35(1), 207-211.
Khanh, N., Do, H.-B., Nguyen, T.-H., Ngo, T.-H.-L., Phan-Gia, A.-V., Tran, T. T. V., De Souza, M. M., Le, H.-M., Linh, L., Nawaz, M. H., Chuang, F.-C., Pham, P. V., & Nguyen Dang, N. (2026). Defect-Controlled Photoresponse in GaOOH/Reduced Graphene Oxide Composites for Ultraviolet-C Photodetectors. ACS Applied Electronic Materials, 8(9), 4336-4342. https://doi.org/10.1021/acsaelm.6c00519
Kokubun, Y., Miura, K., Endo, F., & Nakagomi, S. (2007). Sol-gel prepared β-Ga2O3 thin films for ultraviolet photodetectors. Applied Physics Letters, 90(3).
Kuramata, A., Koshi, K., Watanabe, S., Yamaoka, Y., Masui, T., & Yamakoshi, S. (2016). High-quality β-Ga2O3 single crystals grown by edge-defined film-fed growth. Japanese Journal of Applied Physics, 55(12), 1202A1202. https://doi.org/10.7567/jjap.55.1202a2
Kwon, Y., Lee, G., Oh, S., Kim, J., Pearton, S. J., & Ren, F. (2017). Tuning the thickness of exfoliated quasi-two-dimensional β-Ga2O3 flakes by plasma etching. Applied Physics Letters, 110(13).
Lee, E. J., Ribeiro, C., Longo, E., & Leite, E. R. (2005). Oriented attachment: An effective mechanism in the formation of anisotropic nanocrystals. The Journal of Physical Chemistry B, 109(44), 20842-20846.
Li, G., Peng, C., Li, C., Yang, P., Hou, Z., Fan, Y., Cheng, Z., & Lin, J. (2010). Shape-controllable synthesis and morphology-dependent luminescence properties of GaOOH: Dy3+ and β-Ga2O3: Dy3+. Inorganic Chemistry, 49(4), 1449-1457.
Mao, L., Wang, X., Huang, C., Ma, Y., Qin, F., Lu, W., Zhu, G., Shi, Z., Cui, Q., & Xu, C. (2025). Controllable hydrothermal synthesis of 1D β-Ga2O3 for solar-blind ultraviolet photodetection. Nanomaterials, 15(5), 402. https://www.mdpi.com/2079-4991/15/5/402
Mi, W., Ma, J., Luan, C., Lv, Y., Xiao, H., & Li, Z. (2012). Characterization of β-Ga2O3 epitaxial films grown on MgO (111) substrates by metal-organic chemical vapor deposition. Materials Letters, 87, 109-112. https://doi.org/https://doi.org/10.1016/j.matlet.2012.07.106
Oh, S., Kim, J., Ren, F., Pearton, S. J., & Kim, J. (2016). Quasi-two-dimensional β-gallium oxide solar-blind photodetectors with ultrahigh responsivity. Journal of Materials Chemistry C 4(39), 9245-9250.
Pearton, S. J., Yang, J., Cary, P. H., IV, Ren, F., Kim, J., Tadjer, M. J., & Mastro, M. A. (2018). A review of Ga2O3 materials, processing, and devices. Applied Physics Reviews, 5(1). https://doi.org/10.1063/1.5006941
Pilliadugula, R., & Krishnan, N. G. (2018). Gas sensing performance of GaOOH and β-Ga2O3 synthesized by hydrothermal method: a comparison. Materials Research Express, 6(2), 025027.
Qian, H.-S., Gunawan, P., Zhang, Y.-X., Lin, G.-F., Zheng, J.-W., & Xu, R. (2008). Template-free synthesis of highly uniform α-GaOOH spindles and conversion to α-Ga2O3 and β-Ga2O3. Crystal Growth and Design, 8(4), 1282-1287.
Reddy, L. S., Ko, Y. H., & Yu, J. S. (2015). Hydrothermal synthesis and photocatalytic property of β-Ga2O3 nanorods. Nanoscale Research Letters, 10, 1-7.
Ryou, H., Yoo, T. H., Yoon, Y., Lee, I. G., Shin, M., Cho, J., Cho, B. J., & Hwang, W. S. (2020). Hydrothermal synthesis and photocatalytic property of Sn-doped β-Ga2O3 nanostructure. ECS Journal of Solid State Science and Technology, 9(4), 045009. https://doi.org/10.1149/2162-8777/ab8b4b
Şenaslan, F., Taşdemir, M., & Çelik, A. (2021). Effect of working pressure and post-annealing on structural, optical and electrical properties of p-type NiO thin films produced by RF magnetron sputtering technique. Applied Physics A, 127(10), 739. https://doi.org/10.1007/s00339-021-04901-2
Sharma, S., & Sunkara, M. K. (2002). Direct synthesis of gallium oxide tubes, nanowires, and nanopaintbrushes. Journal of the American Chemical Society, 124(41), 12288-12293.
Shi, F., & Qiao, H. (2020). Influence of hydrothermal reaction time on crystal qualities and photoluminescence properties of β-Ga2O3 nanorods. Journal of Materials Science: Materials in Electronics, 31, 20223-20231.
Singh, N. S., Mia, A. K., & Giri, P. (2024). Role of oxygen functional groups and attachment of Au nanoparticles on graphene oxide sheets for improved photodetection performance. Nanoscale Advances, 6(8), 2136-2148. https://doi.org/10.1039/D3NA01120H
Wang, X., Qiao, H., Liu, T., Song, F., An, Z., Xu, Y., Zhang, L., & Shi, F. (2022). Ultraviolet photoluminescence of β-Ga2O3 microparticles synthesized by hydrothermal method. Journal of Materials Science: Materials in Electronics, 33(16), 13040-13050.
Yang, J. J., Zhao, Y., & Frost, R. L. (2009). Infrared and infrared emission spectroscopy of gallium oxide α-GaO (OH) nanostructures. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 74(2), 398-403.
Yoon, Y., Han, K. I., Kim, B. H., Lee, I. G., Kim, Y., Kim, J. P., & Hwang, W. S. (2018). Formation of β-Ga2O3 nanofibers of sub-50 nm diameter synthesized by electrospinning method. Thin Solid Films, 645, 358-362.
Zhao, W., Yang, Y., Hao, R., Liu, F., Wang, Y., Tan, M., Tang, J., Ren, D., & Zhao, D. (2011). Synthesis of mesoporous β-Ga2O3 nanorods using PEG as template: Preparation, characterization and photocatalytic properties. Journal of Hazardous materials, 192(3), 1548-1554.