Pseudohalide Anion Passivation for Aqueous‐Stable Pure Red Perovskite Nanocrystals DOI
Xian Meng, Jie Chen, Yanxiong Liu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(46)

Published: Aug. 12, 2024

Abstract Recently emerging perovskite nanocrystals (PNCs) have drawn considerable attention due to the superior optoelectronic performances. However, terrible stability of red emissive PNCs (r‐PNCs) limits their broader application in aqueous media. Despite various encapsulation methods are proposed, preparation r‐PNCs with facile operation and excellent durability is still challenging. Herein, green (g‐PNCs) by employing water as an external stimulus treat oleyamine‐capped CsPbBr 3 synthesized initially, then aqueous‐stable pure anion‐exchange reaction subsequently thiocyanate (SCN ‐ ) passivation treatment (SCN‐r‐PNCs) prepared. The obtained SCN‐r‐PNCs display high brightness, outstanding stability, extended photoluminescence lifetime. Moreover, combining portable smartphones, a fluorescence chemosensor for detection SCN − ions constructed, which exhibits simple operation, sensitivity, selectivity, low limit, visualized sensing. This work not only provides new strategy prepare PNCs, but also further extends aqueous‐based fields.

Language: Английский

Heteronuclear lanthanide titanium-oxygen cluster luminescence thermometer with adjustable operating range and sensitivity DOI
Tingting Li,

Jin-Zhe Liu,

Shaojiang Zheng

et al.

Rare Metals, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

Language: Английский

Citations

3
Pseudohalide Anion Passivation for Aqueous‐Stable Pure Red Perovskite Nanocrystals DOI
Xian Meng, Jie Chen, Yanxiong Liu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(46)

Published: Aug. 12, 2024

Abstract Recently emerging perovskite nanocrystals (PNCs) have drawn considerable attention due to the superior optoelectronic performances. However, terrible stability of red emissive PNCs (r‐PNCs) limits their broader application in aqueous media. Despite various encapsulation methods are proposed, preparation r‐PNCs with facile operation and excellent durability is still challenging. Herein, green (g‐PNCs) by employing water as an external stimulus treat oleyamine‐capped CsPbBr 3 synthesized initially, then aqueous‐stable pure anion‐exchange reaction subsequently thiocyanate (SCN ‐ ) passivation treatment (SCN‐r‐PNCs) prepared. The obtained SCN‐r‐PNCs display high brightness, outstanding stability, extended photoluminescence lifetime. Moreover, combining portable smartphones, a fluorescence chemosensor for detection SCN − ions constructed, which exhibits simple operation, sensitivity, selectivity, low limit, visualized sensing. This work not only provides new strategy prepare PNCs, but also further extends aqueous‐based fields.

Language: Английский

Citations

0