Enhancing Photoluminescence of CsPb(Cl<sub>x</sub>Br<sub>1−x</sub>)<sub>3</sub> Perovskite Nanocrystals by Fe<sup>2+</sup> Doping
The doping of impurity ions into perovskite lattices has been scrupulously developed as a promising method to stabilize the crystallographic structure and modulate the optoelectronic properties. However, the photoluminescence (PL) of Fe<sup>2+</sup>-doped mixed halide perovskite NCs is s...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-01-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/13/3/533 |
| _version_ | 1827759726807482368 |
|---|---|
| author | Chang Wu Yan Li Zhengyao Xia Cheng Ji Yuqian Tang Jinlei Zhang Chunlan Ma Ju Gao |
| author_facet | Chang Wu Yan Li Zhengyao Xia Cheng Ji Yuqian Tang Jinlei Zhang Chunlan Ma Ju Gao |
| author_sort | Chang Wu |
| collection | DOAJ |
| description | The doping of impurity ions into perovskite lattices has been scrupulously developed as a promising method to stabilize the crystallographic structure and modulate the optoelectronic properties. However, the photoluminescence (PL) of Fe<sup>2+</sup>-doped mixed halide perovskite NCs is still relatively unexplored. In this work, the Fe<sup>2+</sup>-doped CsPb(Cl<sub>x</sub>Br<sub>1−x</sub>)<sub>3</sub> nanocrystals (NCs) are prepared by a hot injection method. In addition, their optical absorption, photoluminescence (PL), PL lifetimes, and photostabilities are compared with those of undoped CsPb(Br<sub>1−x</sub>Cl<sub>x</sub>)<sub>3</sub> NCs. We find the Fe<sup>2+</sup> doping results in the redshift of the absorption edge and PL. Moreover, the full width at half maximums (FWHMs) are decreased, PL quantum yields (QYs) are improved, and PL lifetimes are extended, suggesting the defect density is reduced by the Fe<sup>2+</sup> doping. Moreover, the photostability is significantly improved after the Fe<sup>2+</sup> doping. Therefore, this work reveals that Fe<sup>2+</sup> doping is a very promising approach to modulate the optical properties of mixed halide perovskite NCs. |
| first_indexed | 2024-03-11T09:31:48Z |
| format | Article |
| id | doaj.art-db70be2ed33d44b3a2f99884cf2f6670 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T09:31:48Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-db70be2ed33d44b3a2f99884cf2f66702023-11-16T17:36:08ZengMDPI AGNanomaterials2079-49912023-01-0113353310.3390/nano13030533Enhancing Photoluminescence of CsPb(Cl<sub>x</sub>Br<sub>1−x</sub>)<sub>3</sub> Perovskite Nanocrystals by Fe<sup>2+</sup> DopingChang Wu0Yan Li1Zhengyao Xia2Cheng Ji3Yuqian Tang4Jinlei Zhang5Chunlan Ma6Ju Gao7Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, ChinaSchool of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, ChinaJiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, ChinaJiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, ChinaJiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, ChinaJiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, ChinaJiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, ChinaJiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, ChinaThe doping of impurity ions into perovskite lattices has been scrupulously developed as a promising method to stabilize the crystallographic structure and modulate the optoelectronic properties. However, the photoluminescence (PL) of Fe<sup>2+</sup>-doped mixed halide perovskite NCs is still relatively unexplored. In this work, the Fe<sup>2+</sup>-doped CsPb(Cl<sub>x</sub>Br<sub>1−x</sub>)<sub>3</sub> nanocrystals (NCs) are prepared by a hot injection method. In addition, their optical absorption, photoluminescence (PL), PL lifetimes, and photostabilities are compared with those of undoped CsPb(Br<sub>1−x</sub>Cl<sub>x</sub>)<sub>3</sub> NCs. We find the Fe<sup>2+</sup> doping results in the redshift of the absorption edge and PL. Moreover, the full width at half maximums (FWHMs) are decreased, PL quantum yields (QYs) are improved, and PL lifetimes are extended, suggesting the defect density is reduced by the Fe<sup>2+</sup> doping. Moreover, the photostability is significantly improved after the Fe<sup>2+</sup> doping. Therefore, this work reveals that Fe<sup>2+</sup> doping is a very promising approach to modulate the optical properties of mixed halide perovskite NCs.https://www.mdpi.com/2079-4991/13/3/533photoluminescenceperovskite nanocrystalsFe<sup>2+</sup> doping |
| spellingShingle | Chang Wu Yan Li Zhengyao Xia Cheng Ji Yuqian Tang Jinlei Zhang Chunlan Ma Ju Gao Enhancing Photoluminescence of CsPb(Cl<sub>x</sub>Br<sub>1−x</sub>)<sub>3</sub> Perovskite Nanocrystals by Fe<sup>2+</sup> Doping Nanomaterials photoluminescence perovskite nanocrystals Fe<sup>2+</sup> doping |
| title | Enhancing Photoluminescence of CsPb(Cl<sub>x</sub>Br<sub>1−x</sub>)<sub>3</sub> Perovskite Nanocrystals by Fe<sup>2+</sup> Doping |
| title_full | Enhancing Photoluminescence of CsPb(Cl<sub>x</sub>Br<sub>1−x</sub>)<sub>3</sub> Perovskite Nanocrystals by Fe<sup>2+</sup> Doping |
| title_fullStr | Enhancing Photoluminescence of CsPb(Cl<sub>x</sub>Br<sub>1−x</sub>)<sub>3</sub> Perovskite Nanocrystals by Fe<sup>2+</sup> Doping |
| title_full_unstemmed | Enhancing Photoluminescence of CsPb(Cl<sub>x</sub>Br<sub>1−x</sub>)<sub>3</sub> Perovskite Nanocrystals by Fe<sup>2+</sup> Doping |
| title_short | Enhancing Photoluminescence of CsPb(Cl<sub>x</sub>Br<sub>1−x</sub>)<sub>3</sub> Perovskite Nanocrystals by Fe<sup>2+</sup> Doping |
| title_sort | enhancing photoluminescence of cspb cl sub x sub br sub 1 x sub sub 3 sub perovskite nanocrystals by fe sup 2 sup doping |
| topic | photoluminescence perovskite nanocrystals Fe<sup>2+</sup> doping |
| url | https://www.mdpi.com/2079-4991/13/3/533 |
| work_keys_str_mv | AT changwu enhancingphotoluminescenceofcspbclsubxsubbrsub1xsubsub3subperovskitenanocrystalsbyfesup2supdoping AT yanli enhancingphotoluminescenceofcspbclsubxsubbrsub1xsubsub3subperovskitenanocrystalsbyfesup2supdoping AT zhengyaoxia enhancingphotoluminescenceofcspbclsubxsubbrsub1xsubsub3subperovskitenanocrystalsbyfesup2supdoping AT chengji enhancingphotoluminescenceofcspbclsubxsubbrsub1xsubsub3subperovskitenanocrystalsbyfesup2supdoping AT yuqiantang enhancingphotoluminescenceofcspbclsubxsubbrsub1xsubsub3subperovskitenanocrystalsbyfesup2supdoping AT jinleizhang enhancingphotoluminescenceofcspbclsubxsubbrsub1xsubsub3subperovskitenanocrystalsbyfesup2supdoping AT chunlanma enhancingphotoluminescenceofcspbclsubxsubbrsub1xsubsub3subperovskitenanocrystalsbyfesup2supdoping AT jugao enhancingphotoluminescenceofcspbclsubxsubbrsub1xsubsub3subperovskitenanocrystalsbyfesup2supdoping |