Colloidal Synthesis and Ultraviolet Luminescence of Rb<sub>2</sub>AgI<sub>3</sub> Nanocrystals
Semiconductor nanocrystals (NCs) hold immense potential as luminescent materials for various optoelectronic applications. While significant progress has been made in developing NCs with outstanding optical properties in the visible range, their counterparts emitting in the ultraviolet (UV) spectrum...
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MDPI AG
2023-07-01
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| author | Yuan Deng Yicheng Zeng Wanying Gu Pan Huang Geyu Jin Fangze Liu Jing Wei Hongbo Li |
| author_facet | Yuan Deng Yicheng Zeng Wanying Gu Pan Huang Geyu Jin Fangze Liu Jing Wei Hongbo Li |
| author_sort | Yuan Deng |
| collection | DOAJ |
| description | Semiconductor nanocrystals (NCs) hold immense potential as luminescent materials for various optoelectronic applications. While significant progress has been made in developing NCs with outstanding optical properties in the visible range, their counterparts emitting in the ultraviolet (UV) spectrum are less developed. Rb<sub>2</sub>AgI<sub>3</sub> is a promising UV-emitting material due to its large band gap and high stability. However, the optical properties of low-dimensional Rb<sub>2</sub>AgI<sub>3</sub> NCs are yet to be thoroughly explored. Here, we synthesized Rb<sub>2</sub>AgI<sub>3</sub> NCs via a hot injection method and investigated their properties. Remarkably, these NCs exhibit UV luminescence at 302 nm owing to self-trapped excitons. The wide-bandgap nature of Rb<sub>2</sub>AgI<sub>3</sub> NCs, combined with their intrinsic UV luminescence, offers considerable potential for applications in UV photonic nanodevices. Our findings contribute to the understanding of Rb<sub>2</sub>AgI<sub>3</sub> NCs and pave the way for exploiting their unique properties in advanced optoelectronic systems. |
| first_indexed | 2024-03-11T01:10:34Z |
| format | Article |
| id | doaj.art-488ab69f3d9f4e70acff798817a5ecf6 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-11T01:10:34Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-488ab69f3d9f4e70acff798817a5ecf62023-11-18T18:54:38ZengMDPI AGCrystals2073-43522023-07-01137111010.3390/cryst13071110Colloidal Synthesis and Ultraviolet Luminescence of Rb<sub>2</sub>AgI<sub>3</sub> NanocrystalsYuan Deng0Yicheng Zeng1Wanying Gu2Pan Huang3Geyu Jin4Fangze Liu5Jing Wei6Hongbo Li7School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaAdvanced Research Institute of Multidisciplinary Sciences, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSemiconductor nanocrystals (NCs) hold immense potential as luminescent materials for various optoelectronic applications. While significant progress has been made in developing NCs with outstanding optical properties in the visible range, their counterparts emitting in the ultraviolet (UV) spectrum are less developed. Rb<sub>2</sub>AgI<sub>3</sub> is a promising UV-emitting material due to its large band gap and high stability. However, the optical properties of low-dimensional Rb<sub>2</sub>AgI<sub>3</sub> NCs are yet to be thoroughly explored. Here, we synthesized Rb<sub>2</sub>AgI<sub>3</sub> NCs via a hot injection method and investigated their properties. Remarkably, these NCs exhibit UV luminescence at 302 nm owing to self-trapped excitons. The wide-bandgap nature of Rb<sub>2</sub>AgI<sub>3</sub> NCs, combined with their intrinsic UV luminescence, offers considerable potential for applications in UV photonic nanodevices. Our findings contribute to the understanding of Rb<sub>2</sub>AgI<sub>3</sub> NCs and pave the way for exploiting their unique properties in advanced optoelectronic systems.https://www.mdpi.com/2073-4352/13/7/1110Rb<sub>2</sub>AgI<sub>3</sub>nanocrystalsultraviolet luminescencehigh stability |
| spellingShingle | Yuan Deng Yicheng Zeng Wanying Gu Pan Huang Geyu Jin Fangze Liu Jing Wei Hongbo Li Colloidal Synthesis and Ultraviolet Luminescence of Rb<sub>2</sub>AgI<sub>3</sub> Nanocrystals Crystals Rb<sub>2</sub>AgI<sub>3</sub> nanocrystals ultraviolet luminescence high stability |
| title | Colloidal Synthesis and Ultraviolet Luminescence of Rb<sub>2</sub>AgI<sub>3</sub> Nanocrystals |
| title_full | Colloidal Synthesis and Ultraviolet Luminescence of Rb<sub>2</sub>AgI<sub>3</sub> Nanocrystals |
| title_fullStr | Colloidal Synthesis and Ultraviolet Luminescence of Rb<sub>2</sub>AgI<sub>3</sub> Nanocrystals |
| title_full_unstemmed | Colloidal Synthesis and Ultraviolet Luminescence of Rb<sub>2</sub>AgI<sub>3</sub> Nanocrystals |
| title_short | Colloidal Synthesis and Ultraviolet Luminescence of Rb<sub>2</sub>AgI<sub>3</sub> Nanocrystals |
| title_sort | colloidal synthesis and ultraviolet luminescence of rb sub 2 sub agi sub 3 sub nanocrystals |
| topic | Rb<sub>2</sub>AgI<sub>3</sub> nanocrystals ultraviolet luminescence high stability |
| url | https://www.mdpi.com/2073-4352/13/7/1110 |
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