scholarly journals Scintillation Response Enhancement in Nanocrystalline Lead Halide Perovskite Thin Films on Scintillating Wafers

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 14
Author(s):  
Kateřina Děcká ◽  
Jan Král ◽  
František Hájek ◽  
Petr Průša ◽  
Vladimir Babin ◽  
...  

Lead halide perovskite nanocrystals of the formula CsPbBr3 have recently been identified as potential time taggers in scintillating heterostructures for time-of-flight positron emission tomography (TOF-PET) imaging thanks to their ultrafast decay kinetics. This study investigates the potential of this material experimentally. We fabricated CsPbBr3 thin films on scintillating GGAG:Ce (Gd2.985Ce0.015Ga2.7Al2.3O12) wafer as a model structure for the future sampling detector geometry. We focused this study on the radioluminescence (RL) response of this composite material. We compare the results of two spin-coating methods, namely the static and the dynamic process, for the thin film preparation. We demonstrated enhanced RL intensity of both CsPbBr3 and GGAG:Ce scintillating constituents of a composite material. This synergic effect arises in both the RL spectra and decays, including decays in the short time window (50 ns). Consequently, this study confirms the applicability of CsPbBr3 nanocrystals as efficient time taggers for ultrafast timing applications, such as TOF-PET.

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.


Nano Letters ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 1454-1460
Author(s):  
Yiliu Wang ◽  
Chuancheng Jia ◽  
Zheng Fan ◽  
Zhaoyang Lin ◽  
Sung-Joon Lee ◽  
...  

Author(s):  
Anil Reddy Pininti ◽  
James M. Ball ◽  
Munirah D. Albaqami ◽  
Annamaria Petrozza ◽  
Mario Caironi

2018 ◽  
Vol 10 (22) ◽  
pp. 19218-19225 ◽  
Author(s):  
Jingfeng Song ◽  
Zhiyong Xiao ◽  
Bo Chen ◽  
Spencer Prockish ◽  
Xuegang Chen ◽  
...  

2020 ◽  
Vol 13 (6) ◽  
pp. 1888-1891
Author(s):  
Alexander Colsmann ◽  
Tobias Leonhard ◽  
Alexander D. Schulz ◽  
Holger Röhm

This comment analyzes pitfalls when investigating piezoresponse and ferroelectricity in organic-metal halide perovskite thin films.


2016 ◽  
Vol 4 (33) ◽  
pp. 7775-7782 ◽  
Author(s):  
Paul F. Ndione ◽  
Zhen Li ◽  
Kai Zhu

Spectroscopic ellipsometry analysis of optical transitions and optical constants in hybrid organic–inorganic perovskite alloys.


2019 ◽  
Vol 30 (13) ◽  
pp. 135701 ◽  
Author(s):  
N Fernández-Delgado ◽  
M Herrera ◽  
F J Delgado ◽  
A H Tavabi ◽  
M Luysberg ◽  
...  

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