Polycrystalline Formamidinium Lead Bromide X-ray Detectors

Alghamdi, Suad; Bennett, Stephanie; Crean, Carol; Ghosh, Joydip; Gibbard, Harry; Moss, Robert M.; Reiß, J.; Wolfe, Douglas E.; Sellin, P.J.

doi:10.3390/app12042013

Cited by 9 publications

(7 citation statements)

References 29 publications

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“…Interestingly, metal halide perovskite SCs exhibit high bulk resistivity in the range of 10 7 -10 10 Ω cm, which allows them to be excellent candidates for direct X-ray detection. [214] In addition, the fabrication cost of perovskite X-ray detectors is much lower than commercial detectors due to the low-temperature solution processing synthesis. The structural configuration of (BA) 2 CsAgBiBr 7 with BA cations as spacers.…”

Section: Direct X-ray Detectormentioning

confidence: 99%

Recent Advances and Opportunities in Low‐Dimensional Layered Perovskites for Emergent Applications beyond Photovoltaics

Ghosh

Parveen

Sellin

et al. 2023

Adv Materials Technologies

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Layered metal halide perovskites have attracted enormous research attention over the last few years, befitting their unique optical and electronic properties. Low‐dimensional layered perovskites demonstrate great potential for various optoelectronic and sensing applications beyond photovoltaics. Herein, the recent progress and opportunities in 2D and quasi‐2D perovskites for light‐emitting diodes (LEDs), lasers, memristors, neuromorphic/synaptic applications, UV–vis photodetection, X‐ray detection, scintillators, and photocatalytic applications are reviewed. First, the crystal structure, characteristics, and fundamental properties of 2D layered perovskites are discussed. Recent efforts and developments of 2D and quasi‐2D metal halide perovskite for light‐emitting applications with excellent luminescence properties are reviewed. Unique properties of 2D perovskites, such as negligible leakage current due to restricted carrier transport, high stability, and hydrophobicity, make them viable for memristor devices. After discussing the memristor and neuromorphic devices using 2D perovskites, the outstanding performance of 2D perovskites in UV–vis photodetection including polarization‐sensitive photodetection is discussed. 2D perovskites recently proved as a superior candidate in X‐ray detection with high stability. Further, the scintillation properties of 2D perovskites for the detection of ionizing radiation are discussed. Finally, some of the very recent achievements and present future outlook, including exciting opportunities in this burgeoning field are highlighted.

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Section: Direct X-ray Detectormentioning

confidence: 99%

Recent Advances and Opportunities in Low‐Dimensional Layered Perovskites for Emergent Applications beyond Photovoltaics

Ghosh

Parveen

Sellin

et al. 2023

Adv Materials Technologies

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“…Reproduced under the terms of the Creative Commons CC BY license. [ 48 ] Copyright 2022, Suad Alghamdi. c) Temperature‐dependent sensitivity of all materials down to 100 K: an enhanced response (higher sensitivity) is found for all X‐ray detector except for Na with decreasing temperature.…”

Section: Important Indicators Of Detector Performancementioning

confidence: 99%

“…[47] In terms of pressure alone, as shown in Figure 2b, the X-ray detector sensitivity increased from 18.0 μC Gy −1 cm −2 at 12 MPa to 168 μC Gy −1 cm −2 at 124 MPa. [48]…”

Section: Crystal Regularitymentioning

confidence: 99%

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A Review on Lead‐Free Perovskites for X‐Ray Detection and Imaging

Zhang

Meng

et al. 2023

Cryst. Res. Technol.

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Recently, perovskites have shown great promise as a semiconductor material with the advantages of low-temperature fabrication, controllable band gap, and high carrier lifetime. In the field of X-ray detection, a number of workers have developed green and stable and efficient lead-free halide chalcogenides in pursuit of stable performance and biological safety. This article has done the following three works: It introduces the basic principles of X-ray detection briefly. The outstanding works that have been done are summarized in terms of sensitivity, signal-to-noise ratio, and detection limit, and their laws are summarized. The optoelectronic properties of lead-free halide perovskites are summarized, the prospects of lead-free perovskites in the field of X-ray detection are foreseen.

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“…The excellent photophysical and electronic properties of metal halide perovskites with the advantages of high absorption coefficients, long carrier lifetime, tunable optical band gap, low cost and low-temperature processing, and superior charge transport, large light yields qualify them as promising candidates for next-generation optoelectronic devices, such as solar cells, light-emitting diodes (LEDs), photodetectors and lasers [20][21][22][23][24][25][26]. Recently, halide perovskite materials have shown great promise in detecting ionizing radiation due to their unique properties [4,[27][28][29][30][31][32][33][34][35][36]. Sensitive x-ray detection is highly desirable in diverse fields related to daily life.…”

Section: Halide Perovskite X-ray Detectorsmentioning

confidence: 99%

Recent advances in lead-free double perovskites for x-ray and photodetection

2022

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Over the last decade, lead halide perovskites have attracted significant research attention in the field of photovoltaics, light-emitting devices, photodetection, ionizing radiation detection, etc., owing to their outstanding optoelectrical properties. However, the commercial applications of lead-based perovskite devices are restricted due to the poor ambient stability and toxicity of lead. The encapsulation of lead-based devices can reduce the possible leakage of lead. However, it is hard to ensure safety during large-scale production and long-term storage. Recently, considerable efforts have been made to design lead-free perovskites for different optoelectronic applications. Metal halide double perovskites with the general formula of A2MIMIIIX6 or A2MIVX6 could be potentially considered as green and stable alternatives for different optoelectronic applications. In this review article, we focus on the recent progress and findings on lead-free halide double perovskites for X-ray and UV-vis photodetection applications. Lead-free halide double perovskite has recently drawn a great deal of attention for superior X-ray detection due to its high absorption coefficient, large carrier mobility-lifetime product, large bulk resistance. In addition, these materials exhibit good performance in photodetection in the UV-Vis region due to high photo carrier generation and efficient carrier separation. In this review, first, we define the characteristics of lead-free double perovskite materials. The fundamental characteristics and beneficial properties of halide perovskites for direct and indirect X-ray detection are then discussed. We comprehensively review recent developments and efforts on lead-free double perovskite for X-ray detection and UV-vis photodetection. We bring out the current challenges and opportunities in the field and finally present the future outlook for developing lead-free double perovskite-based X-ray and UV-vis photodetectors for practical applications.

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Polycrystalline Formamidinium Lead Bromide X-ray Detectors

Cited by 9 publications

References 29 publications

Recent Advances and Opportunities in Low‐Dimensional Layered Perovskites for Emergent Applications beyond Photovoltaics

Recent Advances and Opportunities in Low‐Dimensional Layered Perovskites for Emergent Applications beyond Photovoltaics

A Review on Lead‐Free Perovskites for X‐Ray Detection and Imaging

Recent advances in lead-free double perovskites for x-ray and photodetection

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