| Autor: |
Cheng Lin Jiang, Andi Magattang Gafur Muchlis, Yi-Ting Tsai, Tsai-Wei Lin, Syang-Peng Rwei, Chun Che Lin |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Materials & Design, Vol 247, Iss , Pp 113418- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
0264-1275 |
| DOI: |
10.1016/j.matdes.2024.113418 |
| Popis: |
Cesium lead bromide (CsPbBr3) perovskite nanoparticles (NPs) are widely recognized for their high potential for next-generation optoelectronic devices. However, these NPs’ conventional surface-capped organic ligands with high fluidity are frequently shed from particles during separation and purification steps, significantly reducing their stability. Therefore, a simple method to improve the strength of perovskite NPs is essential. Here, we utilized salicylic acid (SA), which acts as a ligand and protective coating of luminescent NPs, to create CsPbBr3@SA crystals using a straightforward standing technique. The CsPbBr3 NPs were perfectly encapsulated and size-limited in the SA hollow space needle-shaped crystals that retain their significant optical intensity. The fluorescence emission intensity of CsPbBr3@SA crystals without additional treatment can be maintained for six weeks under normal ambient conditions, demonstrating the SA ligand’s ability to protect CsPbBr3 NPs better. Furthermore, the green emission CsPbBr3@SA crystals are combined with K2SiF6 red phosphor and packed with a commercially available blue light emitting diode (LED) chip to fabricate a high gamut area white LED device. The highly straightforward standing method successfully enables the high-potential preparation of perovskite nanoparticles for future practical applications. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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Full Text from ScienceDirect