Turning Self‐Trapped Exciton Emission to Near‐Infrared Region in Thermochromism Zero‐Dimensional Hybrid Metal Halides
(2023) In Advanced Optical Materials 11(20).- Abstract
- Low dimensional lead-free metal halides have become the spotlight of the research on developing multifunctional optoelectronic materials as their properties show a wide range of tunability. However, most reported low dimensional metal halides only function in the ultra-violet to visible range due to their large bandgap. Moreover, the organic cation based low dimensional metal halides show limited thermal stability; on the other hand, their inorganic cation based counterparts suffer from limited solution processability. A hybrid cation approach is proposed, where a zero dimensional (0D) metal halide ((DFPD)2CsBiI6) is developed by using mixed organic–inorganic cations: 4, 4-difluoropiperidine (DFPD) and cesium (Cs+). This ensures both... (More)
- Low dimensional lead-free metal halides have become the spotlight of the research on developing multifunctional optoelectronic materials as their properties show a wide range of tunability. However, most reported low dimensional metal halides only function in the ultra-violet to visible range due to their large bandgap. Moreover, the organic cation based low dimensional metal halides show limited thermal stability; on the other hand, their inorganic cation based counterparts suffer from limited solution processability. A hybrid cation approach is proposed, where a zero dimensional (0D) metal halide ((DFPD)2CsBiI6) is developed by using mixed organic–inorganic cations: 4, 4-difluoropiperidine (DFPD) and cesium (Cs+). This ensures both thermal stability and solution processability. Furthermore, [BiI6]3− octahedra are serving as active light absorption units, which ensures the bandgap to be located at the visible region. Its photoluminescence (PL) is further shifted to the near infrared (NIR) region by doping (DFPD)2CsBiI6 with antimony (Sb3+). The developed materials show multifunctional properties: thermochromic behavior, light detection, and NIR light emitting. This study expands the scope of developing multifunctional 0D metal halides. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/802e7cba-e4e3-4396-b837-06309a701358
- author
- Bai, Tianxin ; Wang, Xiaochen ; He, Yanmei LU ; Wei, Haiwen ; Su, Yan and Chen, Junsheng LU
- organization
- publishing date
- 2023-07-14
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Advanced Optical Materials
- volume
- 11
- issue
- 20
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:85164785508
- ISSN
- 2195-1071
- DOI
- 10.1002/adom.202301110
- language
- English
- LU publication?
- yes
- id
- 802e7cba-e4e3-4396-b837-06309a701358
- date added to LUP
- 2023-09-13 17:30:35
- date last changed
- 2024-01-09 15:46:23
@article{802e7cba-e4e3-4396-b837-06309a701358, abstract = {{Low dimensional lead-free metal halides have become the spotlight of the research on developing multifunctional optoelectronic materials as their properties show a wide range of tunability. However, most reported low dimensional metal halides only function in the ultra-violet to visible range due to their large bandgap. Moreover, the organic cation based low dimensional metal halides show limited thermal stability; on the other hand, their inorganic cation based counterparts suffer from limited solution processability. A hybrid cation approach is proposed, where a zero dimensional (0D) metal halide ((DFPD)2CsBiI6) is developed by using mixed organic–inorganic cations: 4, 4-difluoropiperidine (DFPD) and cesium (Cs+). This ensures both thermal stability and solution processability. Furthermore, [BiI6]3− octahedra are serving as active light absorption units, which ensures the bandgap to be located at the visible region. Its photoluminescence (PL) is further shifted to the near infrared (NIR) region by doping (DFPD)2CsBiI6 with antimony (Sb3+). The developed materials show multifunctional properties: thermochromic behavior, light detection, and NIR light emitting. This study expands the scope of developing multifunctional 0D metal halides.}}, author = {{Bai, Tianxin and Wang, Xiaochen and He, Yanmei and Wei, Haiwen and Su, Yan and Chen, Junsheng}}, issn = {{2195-1071}}, language = {{eng}}, month = {{07}}, number = {{20}}, publisher = {{John Wiley & Sons Inc.}}, series = {{Advanced Optical Materials}}, title = {{Turning Self‐Trapped Exciton Emission to Near‐Infrared Region in Thermochromism Zero‐Dimensional Hybrid Metal Halides}}, url = {{http://dx.doi.org/10.1002/adom.202301110}}, doi = {{10.1002/adom.202301110}}, volume = {{11}}, year = {{2023}}, }