Charge trapping and luminescence of the mixed size CsPbBr3 particles grown in one batch
Само за регистроване кориснике
2024
Аутори
Buryi, MaksymBabin, Vladimir
Děcká, Kateřina
Ridzoňová, Katarína
Neykova, Neda
Hájek, František
Velkov, Zhivko
Remeš, Zdeněk
Tomala, Robert
Socha, Paweł
Bartosiewicz, Karol
Hostinský, Tomáš
Mošner, Petr
Yamamoto, Tomoyuki
Ma, Chong-Geng
Brik, Mikhail G.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Cesium lead bromide (CsPbBr3, CPB) powder formed by micro-, nanocrystals (MC, NC) and quantum dots (QD) was synthesized as free-standing and polystyrene covered. Luminescence was multicomponent, in general, ranging from below 1.9 eV up to about 2.6 eV. The ultrafast decay kinetics exhibited strong decay time component with the value of 260 ps. Electron paramagnetic resonance (EPR) revealed surface defects like O2 and some spin transitions most likely originating from some complex defect, supposedly F-Vk(H) dimer center under the constant ultraviolet (UV) light irradiation at the temperature T =10 K. The thermal release of the electrons from the O2 center was correlated with the 117 K thermally stimulated luminescence (TSL) peak. Coating with polystyrene resulted in the about doubly increased decay time of luminescence. The O2 and F-Vk(H) EPR resonances were not observed as well. The TSL peak which might be ascribed to the O2 was not clearly detected anymore. The glow curve was composed... of one very broad peak typical for the amorphous materials. At the same time, the polystyrene prevented the MCs creation. The existence of charge/energy transfer between the CPB and polystyrene due to the chemical bonding was assumed and confirmed also by calculations.
Кључне речи:
CsPbBr3 particles / Polystyrene shielding / CsPbBr3/Polystyrene bonding / Fast luminescence / Charge trappingИзвор:
Optical Materials, 2024, 151, 115279-Финансирање / пројекти:
- Grantová Agentura České Republiky [20-05497Y]
Колекције
Институција/група
VinčaTY - JOUR AU - Buryi, Maksym AU - Babin, Vladimir AU - Děcká, Kateřina AU - Ridzoňová, Katarína AU - Neykova, Neda AU - Hájek, František AU - Velkov, Zhivko AU - Remeš, Zdeněk AU - Tomala, Robert AU - Socha, Paweł AU - Bartosiewicz, Karol AU - Hostinský, Tomáš AU - Mošner, Petr AU - Yamamoto, Tomoyuki AU - Ma, Chong-Geng AU - Brik, Mikhail G. PY - 2024 UR - https://vinar.vin.bg.ac.rs/handle/123456789/13180 AB - Cesium lead bromide (CsPbBr3, CPB) powder formed by micro-, nanocrystals (MC, NC) and quantum dots (QD) was synthesized as free-standing and polystyrene covered. Luminescence was multicomponent, in general, ranging from below 1.9 eV up to about 2.6 eV. The ultrafast decay kinetics exhibited strong decay time component with the value of 260 ps. Electron paramagnetic resonance (EPR) revealed surface defects like O2 and some spin transitions most likely originating from some complex defect, supposedly F-Vk(H) dimer center under the constant ultraviolet (UV) light irradiation at the temperature T =10 K. The thermal release of the electrons from the O2 center was correlated with the 117 K thermally stimulated luminescence (TSL) peak. Coating with polystyrene resulted in the about doubly increased decay time of luminescence. The O2 and F-Vk(H) EPR resonances were not observed as well. The TSL peak which might be ascribed to the O2 was not clearly detected anymore. The glow curve was composed of one very broad peak typical for the amorphous materials. At the same time, the polystyrene prevented the MCs creation. The existence of charge/energy transfer between the CPB and polystyrene due to the chemical bonding was assumed and confirmed also by calculations. T2 - Optical Materials T1 - Charge trapping and luminescence of the mixed size CsPbBr3 particles grown in one batch VL - 151 SP - 115279 DO - 10.1016/j.optmat.2024.115279 ER -
@article{ author = "Buryi, Maksym and Babin, Vladimir and Děcká, Kateřina and Ridzoňová, Katarína and Neykova, Neda and Hájek, František and Velkov, Zhivko and Remeš, Zdeněk and Tomala, Robert and Socha, Paweł and Bartosiewicz, Karol and Hostinský, Tomáš and Mošner, Petr and Yamamoto, Tomoyuki and Ma, Chong-Geng and Brik, Mikhail G.", year = "2024", abstract = "Cesium lead bromide (CsPbBr3, CPB) powder formed by micro-, nanocrystals (MC, NC) and quantum dots (QD) was synthesized as free-standing and polystyrene covered. Luminescence was multicomponent, in general, ranging from below 1.9 eV up to about 2.6 eV. The ultrafast decay kinetics exhibited strong decay time component with the value of 260 ps. Electron paramagnetic resonance (EPR) revealed surface defects like O2 and some spin transitions most likely originating from some complex defect, supposedly F-Vk(H) dimer center under the constant ultraviolet (UV) light irradiation at the temperature T =10 K. The thermal release of the electrons from the O2 center was correlated with the 117 K thermally stimulated luminescence (TSL) peak. Coating with polystyrene resulted in the about doubly increased decay time of luminescence. The O2 and F-Vk(H) EPR resonances were not observed as well. The TSL peak which might be ascribed to the O2 was not clearly detected anymore. The glow curve was composed of one very broad peak typical for the amorphous materials. At the same time, the polystyrene prevented the MCs creation. The existence of charge/energy transfer between the CPB and polystyrene due to the chemical bonding was assumed and confirmed also by calculations.", journal = "Optical Materials", title = "Charge trapping and luminescence of the mixed size CsPbBr3 particles grown in one batch", volume = "151", pages = "115279", doi = "10.1016/j.optmat.2024.115279" }
Buryi, M., Babin, V., Děcká, K., Ridzoňová, K., Neykova, N., Hájek, F., Velkov, Z., Remeš, Z., Tomala, R., Socha, P., Bartosiewicz, K., Hostinský, T., Mošner, P., Yamamoto, T., Ma, C.,& Brik, M. G.. (2024). Charge trapping and luminescence of the mixed size CsPbBr3 particles grown in one batch. in Optical Materials, 151, 115279. https://doi.org/10.1016/j.optmat.2024.115279
Buryi M, Babin V, Děcká K, Ridzoňová K, Neykova N, Hájek F, Velkov Z, Remeš Z, Tomala R, Socha P, Bartosiewicz K, Hostinský T, Mošner P, Yamamoto T, Ma C, Brik MG. Charge trapping and luminescence of the mixed size CsPbBr3 particles grown in one batch. in Optical Materials. 2024;151:115279. doi:10.1016/j.optmat.2024.115279 .
Buryi, Maksym, Babin, Vladimir, Děcká, Kateřina, Ridzoňová, Katarína, Neykova, Neda, Hájek, František, Velkov, Zhivko, Remeš, Zdeněk, Tomala, Robert, Socha, Paweł, Bartosiewicz, Karol, Hostinský, Tomáš, Mošner, Petr, Yamamoto, Tomoyuki, Ma, Chong-Geng, Brik, Mikhail G., "Charge trapping and luminescence of the mixed size CsPbBr3 particles grown in one batch" in Optical Materials, 151 (2024):115279, https://doi.org/10.1016/j.optmat.2024.115279 . .