Effect of Covalence and Degree of Cation Order on the Luminous Efficacy of Mn4+ Luminescence in the Double Perovskites, Ba2BTaO6 (B = Y, Lu, Sc)
Аутори
Srivastava, Alok M.Brik, Mikhail G.
Ma, Chong-Geng
Beers, William W.
Cohen, William E.
Piasecki, Michal
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The spectroscopic properties of the Mn4+ ion are investigated in the series of isostructural double perovskite compounds, Ba2BTaO6 (B = Y, Lu, Sc). A comparison of these properties highlights the influence of covalent bonding within the perovskite framework and the degree of order between the B3+–Ta cations on the energy and intensity of the Mn4+2E → 4A2 emission transition (R-line). These two parameters of the emission spectrum are of importance for practical application since they determine the phosphor luminous efficacy. The influence of covalent bonding within the corner shared BO6/2 and TaO6/2 perovskite framework on the energy of the R-line energy is investigated. From the spectroscopic data, we have derived information on the influence of the degree of order between the B3+ and Ta5+ cations on the intensity of the R-line. The lowest energy and the highest intensity of the R-line are found in the double perovskite, Ba2ScTaO6. The purpose of this work is to propose for first time ...an explanation of these effects in the considered double perovskites. The obtained results are useful guidelines for practical improvement and tuning of key parameters of phosphors to the desired values.
Извор:
The Journal of Physical Chemistry Letters, 2024, 15, 4175-4184Финансирање / пројекти:
- National Natural Science Foundation of China [Grant Nos. 52161135110 and 12274048]
- Overseas Talents Plan of Chongqing Association for Science and Technology, China [Grant No. 2022[60]]
- Polish NCN [projects 2021/40/Q/ST5/00336]
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-MESTD-inst-2020-200017)
- NCN [project 2018/31/B/ST4/00924]
- Estonian Research Council [grant PRG 2031]
Колекције
Институција/група
VinčaTY - JOUR AU - Srivastava, Alok M. AU - Brik, Mikhail G. AU - Ma, Chong-Geng AU - Beers, William W. AU - Cohen, William E. AU - Piasecki, Michal PY - 2024 UR - https://vinar.vin.bg.ac.rs/handle/123456789/13190 AB - The spectroscopic properties of the Mn4+ ion are investigated in the series of isostructural double perovskite compounds, Ba2BTaO6 (B = Y, Lu, Sc). A comparison of these properties highlights the influence of covalent bonding within the perovskite framework and the degree of order between the B3+–Ta cations on the energy and intensity of the Mn4+2E → 4A2 emission transition (R-line). These two parameters of the emission spectrum are of importance for practical application since they determine the phosphor luminous efficacy. The influence of covalent bonding within the corner shared BO6/2 and TaO6/2 perovskite framework on the energy of the R-line energy is investigated. From the spectroscopic data, we have derived information on the influence of the degree of order between the B3+ and Ta5+ cations on the intensity of the R-line. The lowest energy and the highest intensity of the R-line are found in the double perovskite, Ba2ScTaO6. The purpose of this work is to propose for first time an explanation of these effects in the considered double perovskites. The obtained results are useful guidelines for practical improvement and tuning of key parameters of phosphors to the desired values. T2 - The Journal of Physical Chemistry Letters T1 - Effect of Covalence and Degree of Cation Order on the Luminous Efficacy of Mn4+ Luminescence in the Double Perovskites, Ba2BTaO6 (B = Y, Lu, Sc) VL - 15 SP - 4175 EP - 4184 DO - 10.1021/acs.jpclett.4c00205 ER -
@article{ author = "Srivastava, Alok M. and Brik, Mikhail G. and Ma, Chong-Geng and Beers, William W. and Cohen, William E. and Piasecki, Michal", year = "2024", abstract = "The spectroscopic properties of the Mn4+ ion are investigated in the series of isostructural double perovskite compounds, Ba2BTaO6 (B = Y, Lu, Sc). A comparison of these properties highlights the influence of covalent bonding within the perovskite framework and the degree of order between the B3+–Ta cations on the energy and intensity of the Mn4+2E → 4A2 emission transition (R-line). These two parameters of the emission spectrum are of importance for practical application since they determine the phosphor luminous efficacy. The influence of covalent bonding within the corner shared BO6/2 and TaO6/2 perovskite framework on the energy of the R-line energy is investigated. From the spectroscopic data, we have derived information on the influence of the degree of order between the B3+ and Ta5+ cations on the intensity of the R-line. The lowest energy and the highest intensity of the R-line are found in the double perovskite, Ba2ScTaO6. The purpose of this work is to propose for first time an explanation of these effects in the considered double perovskites. The obtained results are useful guidelines for practical improvement and tuning of key parameters of phosphors to the desired values.", journal = "The Journal of Physical Chemistry Letters", title = "Effect of Covalence and Degree of Cation Order on the Luminous Efficacy of Mn4+ Luminescence in the Double Perovskites, Ba2BTaO6 (B = Y, Lu, Sc)", volume = "15", pages = "4175-4184", doi = "10.1021/acs.jpclett.4c00205" }
Srivastava, A. M., Brik, M. G., Ma, C., Beers, W. W., Cohen, W. E.,& Piasecki, M.. (2024). Effect of Covalence and Degree of Cation Order on the Luminous Efficacy of Mn4+ Luminescence in the Double Perovskites, Ba2BTaO6 (B = Y, Lu, Sc). in The Journal of Physical Chemistry Letters, 15, 4175-4184. https://doi.org/10.1021/acs.jpclett.4c00205
Srivastava AM, Brik MG, Ma C, Beers WW, Cohen WE, Piasecki M. Effect of Covalence and Degree of Cation Order on the Luminous Efficacy of Mn4+ Luminescence in the Double Perovskites, Ba2BTaO6 (B = Y, Lu, Sc). in The Journal of Physical Chemistry Letters. 2024;15:4175-4184. doi:10.1021/acs.jpclett.4c00205 .
Srivastava, Alok M., Brik, Mikhail G., Ma, Chong-Geng, Beers, William W., Cohen, William E., Piasecki, Michal, "Effect of Covalence and Degree of Cation Order on the Luminous Efficacy of Mn4+ Luminescence in the Double Perovskites, Ba2BTaO6 (B = Y, Lu, Sc)" in The Journal of Physical Chemistry Letters, 15 (2024):4175-4184, https://doi.org/10.1021/acs.jpclett.4c00205 . .