Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites
Two-dimensional hybrid organic–inorganic perovskite (2D-HOIP) crystals, in particular lead-bromide perovskites, exhibit great promise as scintillators due to their superior environmental stability compared to their 3D counterparts, offering high light yields and rapid decay times. These cost-effecti...
| Main Authors: | , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/180897 |
| _version_ | 1824455863858888704 |
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| author | Maddalena, Francesco Makowski, Michal Xiao, Chengyuan Sheikh, Md Abdul Kuddus Kowal, Dominik Witkowski, Marcin E. Drozdowski, Konrad J. Mahato, Somnath Dujardin, Christophe Calà, Roberto Auffray, Etiennette Mahyuddin, Muhammad Haris Drozdowski, Winicjusz Birowosuto, Muhammad Danang Dang, Cuong |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Maddalena, Francesco Makowski, Michal Xiao, Chengyuan Sheikh, Md Abdul Kuddus Kowal, Dominik Witkowski, Marcin E. Drozdowski, Konrad J. Mahato, Somnath Dujardin, Christophe Calà, Roberto Auffray, Etiennette Mahyuddin, Muhammad Haris Drozdowski, Winicjusz Birowosuto, Muhammad Danang Dang, Cuong |
| author_sort | Maddalena, Francesco |
| collection | NTU |
| description | Two-dimensional hybrid organic–inorganic perovskite (2D-HOIP) crystals, in particular lead-bromide perovskites, exhibit great promise as scintillators due to their superior environmental stability compared to their 3D counterparts, offering high light yields and rapid decay times. These cost-effective, solution-processable materials demonstrate potential for efficient wide-energy radiation detection. In this paper we focus on investigating the effect of partial substitution of n-butylammonium (BA) cation with tert-butylammonium (t-Bu) cation within the butylammonium lead bromide (BA2-xtBuxPbBr4) structure and its impact on luminescence and scintillation properties. We observe that inclusion up to 5 % of t-Bu (x = 0.1) within the structure leads to a narrowing of the bandgap, leading also to an improvement of the light yield by 10 % and lowering of the energy resolution, compared to pristine BA2PbBr4. The bandgap widens, compared to pristine BA2PbBr4, with higher concentrations above 5 %, resulting in effects for the scintillating properties of the 2D-HOIP at room temperature at t-Bu concentrations above 5 %, with reduced light yield and broadened energy resolution. Higher t-Bu concentration (x = 0.4) show very poor room temperature scintillation but increased efficiency at cryogenic temperatures below 50 K. The results shown in this paper demonstrate the fundamental limitation of organic cation mixing levels for scintillation efficiency enhancement. |
| first_indexed | 2025-02-19T03:44:58Z |
| format | Journal Article |
| id | ntu-10356/180897 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:44:58Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1808972024-11-04T01:52:33Z Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites Maddalena, Francesco Makowski, Michal Xiao, Chengyuan Sheikh, Md Abdul Kuddus Kowal, Dominik Witkowski, Marcin E. Drozdowski, Konrad J. Mahato, Somnath Dujardin, Christophe Calà, Roberto Auffray, Etiennette Mahyuddin, Muhammad Haris Drozdowski, Winicjusz Birowosuto, Muhammad Danang Dang, Cuong School of Electrical and Electronic Engineering CINTRA UMI CNRS/NTU/THALES 3288 Engineering Hybrid perovskite Dual-organic cation Two-dimensional hybrid organic–inorganic perovskite (2D-HOIP) crystals, in particular lead-bromide perovskites, exhibit great promise as scintillators due to their superior environmental stability compared to their 3D counterparts, offering high light yields and rapid decay times. These cost-effective, solution-processable materials demonstrate potential for efficient wide-energy radiation detection. In this paper we focus on investigating the effect of partial substitution of n-butylammonium (BA) cation with tert-butylammonium (t-Bu) cation within the butylammonium lead bromide (BA2-xtBuxPbBr4) structure and its impact on luminescence and scintillation properties. We observe that inclusion up to 5 % of t-Bu (x = 0.1) within the structure leads to a narrowing of the bandgap, leading also to an improvement of the light yield by 10 % and lowering of the energy resolution, compared to pristine BA2PbBr4. The bandgap widens, compared to pristine BA2PbBr4, with higher concentrations above 5 %, resulting in effects for the scintillating properties of the 2D-HOIP at room temperature at t-Bu concentrations above 5 %, with reduced light yield and broadened energy resolution. Higher t-Bu concentration (x = 0.4) show very poor room temperature scintillation but increased efficiency at cryogenic temperatures below 50 K. The results shown in this paper demonstrate the fundamental limitation of organic cation mixing levels for scintillation efficiency enhancement. Ministry of Education (MOE) F.M. and C.Dang acknowledge financial supports from the Ministry of Education (Singapore), under its AcRF Tier 2 grant (MOET2EP50121- 0012). D.K. acknowledges funding from National Science Center, Poland under grant MINIATURA No. 2022/06/X/ST5/00369. M.D.B. acknowledges research funds from the National Science Center, Poland under grant OPUS-24 No. 2022/47/B/ST5/01966. M.H.M. acknowledges a research fund from Institut Teknologi Bandung under the ”Riset ITB 2024” scheme (Grant No. 959/IT1.B07.1/TA.00/2024). M.M. acknowledges his on leave status from Nicolaus Copernicus University in Torun, Torun 87–100, Poland. 2024-11-04T01:52:33Z 2024-11-04T01:52:33Z 2024 Journal Article Maddalena, F., Makowski, M., Xiao, C., Sheikh, M. A. K., Kowal, D., Witkowski, M. E., Drozdowski, K. J., Mahato, S., Dujardin, C., Calà, R., Auffray, E., Mahyuddin, M. H., Drozdowski, W., Birowosuto, M. D. & Dang, C. (2024). Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites. FlatChem, 47, 100701-. https://dx.doi.org/10.1016/j.flatc.2024.100701 2452-2627 https://hdl.handle.net/10356/180897 10.1016/j.flatc.2024.100701 2-s2.0-85197421587 47 100701 en MOET2EP50121-0012 FlatChem © 2024 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies. |
| spellingShingle | Engineering Hybrid perovskite Dual-organic cation Maddalena, Francesco Makowski, Michal Xiao, Chengyuan Sheikh, Md Abdul Kuddus Kowal, Dominik Witkowski, Marcin E. Drozdowski, Konrad J. Mahato, Somnath Dujardin, Christophe Calà, Roberto Auffray, Etiennette Mahyuddin, Muhammad Haris Drozdowski, Winicjusz Birowosuto, Muhammad Danang Dang, Cuong Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites |
| title | Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites |
| title_full | Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites |
| title_fullStr | Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites |
| title_full_unstemmed | Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites |
| title_short | Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites |
| title_sort | optimizing doping thresholds for enhanced scintillation in 2d hybrid organic inorganic perovskites |
| topic | Engineering Hybrid perovskite Dual-organic cation |
| url | https://hdl.handle.net/10356/180897 |
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