Highly ordered lead-free double perovskite halides by design
Lead-free double perovskite halides are emerging optoelectronic materials that are alternatives to lead-based perovskite halides. Recently, single-crystalline double perovskite halides were synthesized, and their intriguing functional properties were demonstrated. Despite such pioneering works, lead...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-12-01
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| Series: | Journal of Materiomics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352847820301064 |
| _version_ | 1797710826418733056 |
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| author | Chang Won Ahn Jae Hun Jo Jong Chan Kim Hamid Ullah Sangkyun Ryu Younghun Hwang Jin San Choi Jongmin Lee Sanghan Lee Hyoungjeen Jeen Young-Han Shin Hu Young Jeong Ill Won Kim Tae Heon Kim |
| author_facet | Chang Won Ahn Jae Hun Jo Jong Chan Kim Hamid Ullah Sangkyun Ryu Younghun Hwang Jin San Choi Jongmin Lee Sanghan Lee Hyoungjeen Jeen Young-Han Shin Hu Young Jeong Ill Won Kim Tae Heon Kim |
| author_sort | Chang Won Ahn |
| collection | DOAJ |
| description | Lead-free double perovskite halides are emerging optoelectronic materials that are alternatives to lead-based perovskite halides. Recently, single-crystalline double perovskite halides were synthesized, and their intriguing functional properties were demonstrated. Despite such pioneering works, lead-free double perovskite halides with better crystallinity are still in demand for applications to novel optoelectronic devices. Here, we realized highly crystalline Cs2AgBiBr6 single crystals with a well-defined atomic ordering on the microscopic scale. We avoided the formation of Ag vacancies and the subsequent secondary Cs3Bi2Br9 by manipulating the initial chemical environments in hydrothermal synthesis. The suppression of Ag vacancies allows us to reduce the trap density in the as-grown crystals and to enhance the carrier mobility further. Our design strategy is applicable for fabricating other lead-free halide materials with high crystallinity. |
| first_indexed | 2024-03-12T06:57:53Z |
| format | Article |
| id | doaj.art-375eaec571ad4903a9f1b2918f087554 |
| institution | Directory Open Access Journal |
| issn | 2352-8478 |
| language | English |
| last_indexed | 2024-03-12T06:57:53Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materiomics |
| spelling | doaj.art-375eaec571ad4903a9f1b2918f0875542023-09-02T23:54:50ZengElsevierJournal of Materiomics2352-84782020-12-0164651660Highly ordered lead-free double perovskite halides by designChang Won Ahn0Jae Hun Jo1Jong Chan Kim2Hamid Ullah3Sangkyun Ryu4Younghun Hwang5Jin San Choi6Jongmin Lee7Sanghan Lee8Hyoungjeen Jeen9Young-Han Shin10Hu Young Jeong11Ill Won Kim12Tae Heon Kim13Department of Physics and Energy Harvest-Storage Research Center (EHSRC), University of Ulsan, Ulsan, 44610, Republic of KoreaDepartment of Physics and Energy Harvest-Storage Research Center (EHSRC), University of Ulsan, Ulsan, 44610, Republic of KoreaUNIST Central Research Facilities (UCRF) & School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of KoreaMultiscale Materials Modelling Laboratory, Department of Physics, University of Ulsan, Ulsan, 44610, Republic of KoreaDepartment of Physics, Pusan National University, Pusan, 46241, Republic of KoreaSchool of Electrical and Electronics Engineering, Ulsan College, Ulsan, 44610, Republic of KoreaDepartment of Physics and Energy Harvest-Storage Research Center (EHSRC), University of Ulsan, Ulsan, 44610, Republic of KoreaSchool of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of KoreaSchool of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of KoreaDepartment of Physics, Pusan National University, Pusan, 46241, Republic of KoreaMultiscale Materials Modelling Laboratory, Department of Physics, University of Ulsan, Ulsan, 44610, Republic of KoreaUNIST Central Research Facilities (UCRF) & School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of KoreaDepartment of Physics and Energy Harvest-Storage Research Center (EHSRC), University of Ulsan, Ulsan, 44610, Republic of KoreaDepartment of Physics and Energy Harvest-Storage Research Center (EHSRC), University of Ulsan, Ulsan, 44610, Republic of Korea; Corresponding author.Lead-free double perovskite halides are emerging optoelectronic materials that are alternatives to lead-based perovskite halides. Recently, single-crystalline double perovskite halides were synthesized, and their intriguing functional properties were demonstrated. Despite such pioneering works, lead-free double perovskite halides with better crystallinity are still in demand for applications to novel optoelectronic devices. Here, we realized highly crystalline Cs2AgBiBr6 single crystals with a well-defined atomic ordering on the microscopic scale. We avoided the formation of Ag vacancies and the subsequent secondary Cs3Bi2Br9 by manipulating the initial chemical environments in hydrothermal synthesis. The suppression of Ag vacancies allows us to reduce the trap density in the as-grown crystals and to enhance the carrier mobility further. Our design strategy is applicable for fabricating other lead-free halide materials with high crystallinity.http://www.sciencedirect.com/science/article/pii/S2352847820301064Cs2AgBiBr6Lead-freeDouble perovskiteSingle crystal |
| spellingShingle | Chang Won Ahn Jae Hun Jo Jong Chan Kim Hamid Ullah Sangkyun Ryu Younghun Hwang Jin San Choi Jongmin Lee Sanghan Lee Hyoungjeen Jeen Young-Han Shin Hu Young Jeong Ill Won Kim Tae Heon Kim Highly ordered lead-free double perovskite halides by design Journal of Materiomics Cs2AgBiBr6 Lead-free Double perovskite Single crystal |
| title | Highly ordered lead-free double perovskite halides by design |
| title_full | Highly ordered lead-free double perovskite halides by design |
| title_fullStr | Highly ordered lead-free double perovskite halides by design |
| title_full_unstemmed | Highly ordered lead-free double perovskite halides by design |
| title_short | Highly ordered lead-free double perovskite halides by design |
| title_sort | highly ordered lead free double perovskite halides by design |
| topic | Cs2AgBiBr6 Lead-free Double perovskite Single crystal |
| url | http://www.sciencedirect.com/science/article/pii/S2352847820301064 |
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