lead halide
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2022 ◽  
Chen Chen ◽  
Lei Nie ◽  
Yizhe Huang ◽  
Shuang Xi ◽  
Xingyue Liu ◽  

Abstract Herein, we develop a novel strategy for preparing all-inorganic cesium lead halide (CsPbX3, X= Cl, Br, I) perovskite nanocrystals (NCs)@Zn-based metal-organic framework (MOF) composites through interfacial synthesis. The successful embedding of fluorescent perovskite NCs in Zn-MOFs is due to the in-situ confined growth, which is attributed to the re-nucleation of water-triggered phase transformation from Cs4PbBr6 to CsPbBr3. The controllable synthesis of mixed-halide based composites with various emission wavelength can be achieved by adding the desired amount of halide (Cl or I) salts in the re-nucleation process. More importantly, the anion exchange reaction is inhibited among various composites with different halogen atoms by being trapped in MOFs. Besides, a white light-emitting diode (WLED) is produced using a blue LED chip with the green-emitting and red-emitting composites, which has a color coordinate of (0.3291, 0.3272) and a wide color gamut. This work provides a novel route to achieving perovskite NCs growth in MOFs, which also can be extended to the other NCs embedded in frames as well.

2022 ◽  
pp. 617-623
Carl R. Conti ◽  
Alexander S. Bieber ◽  
Zachary A. VanOrman ◽  
Gregory Moller ◽  
Sarah Wieghold ◽  

K. Sandeep ◽  
K. Padmakumar ◽  
K. U. Ambili ◽  
P. Jishnu ◽  
K. H. Fousia ◽  

Nano Letters ◽  
2022 ◽  
Beibei Tang ◽  
Guihai Li ◽  
Xuechen Ru ◽  
Yan Gao ◽  
Zidu Li ◽  

2022 ◽  
Vol 131 (1) ◽  
pp. 010902
Naomi Falsini ◽  
Giammarco Roini ◽  
Andrea Ristori ◽  
Nicola Calisi ◽  
Francesco Biccari ◽  

2022 ◽  
Vol 60 (1) ◽  
pp. 1-13
Myeong Jin Seol ◽  
Jeong Woo Han ◽  
Seung Hwan Hwang ◽  
Soo Young Kim

Because of their superior optical, and electrical properties, lead halide perovskites have emerged as potential materials for light-emitting-diodes. However, some obstacles have yet to be overcome for practical applications including low exciton binding energy, the difficulty of fabricating uniform perovskite films,, and their instability to heat, light, and moisture. In this review, we focus on strategies to improve the lifetime, and stability of perovskites such as core-shell structure, ligand exchange, and doping.

Federica Bertolotti ◽  
Anna Vivani ◽  
Fabio Ferri ◽  
Pietro Anzini ◽  
Antonio Cervellino ◽  

2022 ◽  
Vol 572 ◽  
pp. 151485
Beichen Liu ◽  
Xubo Jia ◽  
Yang Nie ◽  
Honggang Ye

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