Investigation of CsBr:BiBr3 precursor ratio concentration on cesium bismuth bromide perovskite formation
The effect of precursor ratios on the formation of Cs3Bi2Br9 via a re-precipitation synthesis method has been studied thoroughly. X-ray diffraction analysis showed that the precursor ratio was critical for the Cs3Bi2Br9 phase formation. The Cs-rich or Bi-rich precursor ratio resulted in diverse pero...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
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Elsevier BV
2023
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| Online Access: | http://psasir.upm.edu.my/id/eprint/108893/ |
| _version_ | 1848865229348274176 |
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| author | Low, Yiin Jian Liew, Josephine Ying Chyi Talib, Zainal Abidin Lim, Hong Ngee Kamarudin, Mazliana Ahmad Choo, Thye Foo Fen, Yap Wing Lee, Han Kee Salisu, Bashir Shitu, Ibrahim Garba |
| author_facet | Low, Yiin Jian Liew, Josephine Ying Chyi Talib, Zainal Abidin Lim, Hong Ngee Kamarudin, Mazliana Ahmad Choo, Thye Foo Fen, Yap Wing Lee, Han Kee Salisu, Bashir Shitu, Ibrahim Garba |
| author_sort | Low, Yiin Jian |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The effect of precursor ratios on the formation of Cs3Bi2Br9 via a re-precipitation synthesis method has been studied thoroughly. X-ray diffraction analysis showed that the precursor ratio was critical for the Cs3Bi2Br9 phase formation. The Cs-rich or Bi-rich precursor ratio resulted in diverse perovskite structure formation of Cs3BiBr6 and Cs3Bi2Br6 with micron size platelet and semi-micron size crystal morphology respectively. Unreacted BiBr3 precursor remains in the supernatant solution under Bi-rich conditions. The synthesized powder dispersed in toluene shows the degradation of the Cs3Bi2Br9 phase at Cs-rich conditions. Photoluminescence quantum yield (PLQY) of 0.73 % was identified in Cs3Bi2Br9 with a large contribution to the exciton-related recombination process. A precursor ratio CsBr:BiBr3 of 3.0:2.0 is proposed to form a single-phase Cs3Bi2Br9 structure, as the deviation in precursor ratio would promote the Cs3BiBr6 structure growth and affect the material’s optical performance. |
| first_indexed | 2025-11-15T14:01:23Z |
| format | Article |
| id | upm-108893 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T14:01:23Z |
| publishDate | 2023 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1088932024-09-26T08:38:28Z http://psasir.upm.edu.my/id/eprint/108893/ Investigation of CsBr:BiBr3 precursor ratio concentration on cesium bismuth bromide perovskite formation Low, Yiin Jian Liew, Josephine Ying Chyi Talib, Zainal Abidin Lim, Hong Ngee Kamarudin, Mazliana Ahmad Choo, Thye Foo Fen, Yap Wing Lee, Han Kee Salisu, Bashir Shitu, Ibrahim Garba The effect of precursor ratios on the formation of Cs3Bi2Br9 via a re-precipitation synthesis method has been studied thoroughly. X-ray diffraction analysis showed that the precursor ratio was critical for the Cs3Bi2Br9 phase formation. The Cs-rich or Bi-rich precursor ratio resulted in diverse perovskite structure formation of Cs3BiBr6 and Cs3Bi2Br6 with micron size platelet and semi-micron size crystal morphology respectively. Unreacted BiBr3 precursor remains in the supernatant solution under Bi-rich conditions. The synthesized powder dispersed in toluene shows the degradation of the Cs3Bi2Br9 phase at Cs-rich conditions. Photoluminescence quantum yield (PLQY) of 0.73 % was identified in Cs3Bi2Br9 with a large contribution to the exciton-related recombination process. A precursor ratio CsBr:BiBr3 of 3.0:2.0 is proposed to form a single-phase Cs3Bi2Br9 structure, as the deviation in precursor ratio would promote the Cs3BiBr6 structure growth and affect the material’s optical performance. Elsevier BV 2023 Article PeerReviewed Low, Yiin Jian and Liew, Josephine Ying Chyi and Talib, Zainal Abidin and Lim, Hong Ngee and Kamarudin, Mazliana Ahmad and Choo, Thye Foo and Fen, Yap Wing and Lee, Han Kee and Salisu, Bashir and Shitu, Ibrahim Garba (2023) Investigation of CsBr:BiBr3 precursor ratio concentration on cesium bismuth bromide perovskite formation. Chemical Physics, 566. art. no. 111791. pp. 1-8. ISSN 0301-0104; ESSN: 1873-4421 https://linkinghub.elsevier.com/retrieve/pii/S0301010422003445 10.1016/j.chemphys.2022.111791 |
| spellingShingle | Low, Yiin Jian Liew, Josephine Ying Chyi Talib, Zainal Abidin Lim, Hong Ngee Kamarudin, Mazliana Ahmad Choo, Thye Foo Fen, Yap Wing Lee, Han Kee Salisu, Bashir Shitu, Ibrahim Garba Investigation of CsBr:BiBr3 precursor ratio concentration on cesium bismuth bromide perovskite formation |
| title | Investigation of CsBr:BiBr3 precursor ratio concentration on cesium bismuth bromide perovskite formation |
| title_full | Investigation of CsBr:BiBr3 precursor ratio concentration on cesium bismuth bromide perovskite formation |
| title_fullStr | Investigation of CsBr:BiBr3 precursor ratio concentration on cesium bismuth bromide perovskite formation |
| title_full_unstemmed | Investigation of CsBr:BiBr3 precursor ratio concentration on cesium bismuth bromide perovskite formation |
| title_short | Investigation of CsBr:BiBr3 precursor ratio concentration on cesium bismuth bromide perovskite formation |
| title_sort | investigation of csbr:bibr3 precursor ratio concentration on cesium bismuth bromide perovskite formation |
| url | http://psasir.upm.edu.my/id/eprint/108893/ http://psasir.upm.edu.my/id/eprint/108893/ http://psasir.upm.edu.my/id/eprint/108893/ |