Dramatically Enhanced X-ray Scintillation of BODIPY via Sensitization by an Organic Metal Halide

2022 ◽  
pp. 271-276
Author(s):  
Tunde Blessed Shonde ◽  
Animesh Mondal ◽  
He Liu ◽  
Maya Chaaban ◽  
Azza Ben-Akacha ◽  
...  
Keyword(s):  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Woocheol Lee ◽  
Jonghoon Lee ◽  
Hyeon-Dong Lee ◽  
Junwoo Kim ◽  
Heebeom Ahn ◽  
...  

An amendment to this paper has been published and can be accessed via a link at the top of the paper.


Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Zhifang Tan ◽  
Jincong Pang ◽  
Guangda Niu ◽  
Jun-Hui Yuan ◽  
Kan-Hao Xue ◽  
...  

Abstract Metal halide perovskites have recently been reported as excellent scintillators for X-ray detection. However, perovskite based scintillators are susceptible to moisture and oxygen atmosphere, such as the water solubility of CsPbBr3, and oxidation vulnerability of Sn2+, Cu+. The traditional metal halide scintillators (NaI: Tl, LaBr3, etc.) are also severely restricted by their high hygroscopicity. Here we report a new kind of lead free perovskite with excellent water and radiation stability, Rb2Sn1-x Te x Cl6. The equivalent doping of Te could break the in-phase bonding interaction between neighboring octahedra in Rb2SnCl6, and thus decrease the electron and hole dimensionality. The optimized Te content of 5% resulted in high photoluminescence quantum yield of 92.4%, and low X-ray detection limit of 0.7 µGyair s−1. The photoluminescence and radioluminescence could be maintained without any loss when immersing in water or after 480,000 Gy radiations, outperforming previous perovskite and traditional metal halides scintillators.


2019 ◽  
Author(s):  
Florian Mathies ◽  
Hampus Näsström ◽  
Oleksandra Shargaieva ◽  
Gopinath Paramasivam ◽  
Eva Unger

2021 ◽  
Vol 4 (9) ◽  
pp. 681-688
Author(s):  
Sarah Deumel ◽  
Albert van Breemen ◽  
Gerwin Gelinck ◽  
Bart Peeters ◽  
Joris Maas ◽  
...  

AbstractTo realize the potential of artificial intelligence in medical imaging, improvements in imaging capabilities are required, as well as advances in computing power and algorithms. Hybrid inorganic–organic metal halide perovskites, such as methylammonium lead triiodide (MAPbI3), offer strong X-ray absorption, high carrier mobilities (µ) and long carrier lifetimes (τ), and they are promising materials for use in X-ray imaging. However, their incorporation into pixelated sensing arrays remains challenging. Here we show that X-ray flat-panel detector arrays based on microcrystalline MAPbI3 can be created using a two-step manufacturing process. Our approach is based on the mechanical soft sintering of a freestanding absorber layer and the subsequent integration of this layer on a pixelated backplane. Freestanding microcrystalline MAPbI3 wafers exhibit a sensitivity of 9,300 µC Gyair–1 cm–2 with a μτ product of 4 × 10–4 cm2 V–1, and the resulting X-ray imaging detector, which has 508 pixels per inch, combines a high spatial resolution of 6 line pairs per millimetre with a low detection limit of 0.22 nGyair per frame.


2020 ◽  
Vol 49 (29) ◽  
pp. 10084-10090
Author(s):  
Wencheng Fang ◽  
Dandan Yan ◽  
Ran Tao ◽  
Zhixia Sun ◽  
Fengyan Li ◽  
...  

Two kinds of polyoxometalates, PW12 and CoPOM, were employed to modify the organic metal halide perovskite photoanode for enhancing the photoelectrocatalytic oxidation of benzene into phenol.


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.


2018 ◽  
Vol 30 (7) ◽  
pp. 2374-2378 ◽  
Author(s):  
Chenkun Zhou ◽  
Michael Worku ◽  
Jennifer Neu ◽  
Haoran Lin ◽  
Yu Tian ◽  
...  

Author(s):  
Jingjing Zhao ◽  
Yuanxiang Feng ◽  
Lei Pan ◽  
Lei R. Cao ◽  
Jinsong Huang

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