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Kamonpha P, Manyum P, Chanthima N, Tariwong Y, Triamnak N, Yimnirun R, Rujirawat S, Kidkhunthod P, Tanthanuch W, Kothan S, Kim H, Kaewkhao J. Influence of Eu3+ dopant on lithium barium gadolinium phosphate glass properties for orange-reddish photonic devices. Radiat Phys Chem Oxf Engl 1993 2023. [DOI: 10.1016/j.radphyschem.2023.110842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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Manyum P, Rittisut W, Mool-am-kha P, Ekwongsa C, Wantana N, Ruangtaweep Y, Popanao M, Rujirawat S, Yimnirun R, Kidkhunthod P, Prasatkhetragarn A, Kothan S, Kim H, Kaewkhao J. Structural and luminescence investigations of Gd3+ - Er3+ doped in lithium aluminum borate glasses using XANES and EXAFS techniques. Radiat Phys Chem Oxf Engl 1993 2023. [DOI: 10.1016/j.radphyschem.2023.110801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Klinbumrung A, Kidkhunthod P, Jantaratana P, Yimnirun R, Prasatkhetragarn A. Crystal structure and magnetoelectric properties of CrFeO3-doped BaZr0.1Ti0.9O3 multiferroic ceramics. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rittisut W, Mool-am-kha P, Wantana N, Ruangtaweep Y, Rujirawat S, Kidkhunthod P, Manyum P, Yimnirun R, Prasatkhetragarn A, Kothan S, Kim H, Kaewkhao J. New developments in the Gd3+/Sm3+ ions doped lithium aluminum borate glasses of luminescent materials for lighting applications. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Padchasri J, Triamnak N, Sareein T, Jutimoosik J, Tongsaeng S, Bootchanont A, Kidkhunthod P, Rujirawat S, Manyum P, Yimnirun R. Crystal structure and XANES study of Fe-substituted Barium Titanate ceramics prepared by conventional solid-state technique. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2021.109657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rittisut W, Wantana N, Ruangtaweep Y, Mool-am-kha P, Rujirawat S, Manyum P, Yimnirun R, Kidkhunthod P, Prasatkhetragarn A, Kothan S, Kim H, Kaewkhao J. The radioluminescence and photoluminescence behaviour of lithium alumino borate glasses doped with Tb2O3 and Gd2O3 for green luminescence applications. Optical Materials 2021. [DOI: 10.1016/j.optmat.2021.111437] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Kamonpha P, Manyum P, Chanthima N, Tariwong Y, Triamnak N, Yimnirun R, Rujirawat S, Kidkhunthod P, Kothan S, Kim H, Kaewkhao J. Structural and luminescence investigation of Ce3+ doped lithium barium gadolinium phosphate glass scintillator. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2021.109488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Nathabumroong S, Eknapakul T, Jaiban P, Yotburut B, Siriroj S, Saisopa T, Mo SK, Supruangnet R, Nakajima H, Yimnirun R, Maensiri S, Meevasana W. Interplay of negative electronic compressibility and capacitance enhancement in lightly-doped metal oxide Bi 0.95La 0.05FeO 3 by quantum capacitance model. Sci Rep 2020; 10:5153. [PMID: 32198381 PMCID: PMC7083945 DOI: 10.1038/s41598-020-61859-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 02/24/2020] [Indexed: 12/03/2022] Open
Abstract
Light-sensitive capacitance variation of Bi0.95La0.05FeO3 (BLFO) ceramics has been studied under violet to UV irradiation. The reversible capacitance enhancement up to 21% under 405 nm violet laser irradiation has been observed, suggesting a possible degree of freedom to dynamically control this in high dielectric materials for light-sensitive capacitance applications. By using ultraviolet photoemission spectroscopy (UPS), we show here that exposure of BLFO surfaces to UV light induces a counterintuitive shift of the O2p valence state to lower binding energy of up to 243 meV which is a direct signature of negative electronic compressibility (NEC). A decrease of BLFO electrical resistance agrees strongly with the UPS data suggesting the creation of a thin conductive layer on its insulating bulk under light irradiation. By exploiting the quantum capacitance model, we find that the negative quantum capacitance due to this NEC effect plays an important role in this capacitance enhancement
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Affiliation(s)
- S Nathabumroong
- School of Physics and Center of Excellence on Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - T Eknapakul
- School of Physics and Center of Excellence on Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - P Jaiban
- School of Physics and Center of Excellence on Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.,Faculty of science, Energy and Environment, King Mongkut's University of Technology North Bangkok, Rayong Campus, Rayong, 21120, Thailand
| | - B Yotburut
- School of Physics and Center of Excellence on Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.,Thailand Center of Excellence in Physics (ThEP), MHSRI, Bangkok, 10400, Thailand
| | - S Siriroj
- School of Physics and Center of Excellence on Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - T Saisopa
- School of Physics and Center of Excellence on Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - S-K Mo
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - R Supruangnet
- Synchrotron Light Research Institute, Nakhon Ratchasima, 30000, Thailand
| | - H Nakajima
- Synchrotron Light Research Institute, Nakhon Ratchasima, 30000, Thailand
| | - R Yimnirun
- School of Physics and Center of Excellence on Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.,School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
| | - S Maensiri
- School of Physics and Center of Excellence on Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - W Meevasana
- School of Physics and Center of Excellence on Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand. .,Thailand Center of Excellence in Physics (ThEP), MHSRI, Bangkok, 10400, Thailand.
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