Flexible perovskite scintillators and detectors for X-ray detection

Wang, Baiqian; Yang, Xin; Shi, Chen; Lu, Shirong; Zhao, Shuangyi; Qian, Qingkai; Cai, Wensi; Wang, Shenghao; Zang, Zhigang

doi:10.1016/j.isci.2022.105593

Cited by 36 publications

(23 citation statements)

References 118 publications

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“…The effective detection of low-threshold X-ray radiation is crucial for medical imaging and industrial inspection. Over the past few years, three-dimensional (3D) halide perovskites have attracted intensive attention for X-ray detection, owing to their excellent absorption coefficients, high carrier mobility, long carrier diffusion length, high defect tolerance, and tunable band gaps. − For example, Tang et al provided X-ray detectors based on intrinsic CsPbBr 3 , which achieved a low detection limit of 103.6 nGy air s –1 . Kanatzidis et al reported CsPbBr 3 -based X-ray detectors with a low detection limit of 22 nGy air s –1 .…”

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confidence: 99%

One-Dimensional CsCu₂I₃ Single-Crystal X-ray Detectors

Wang,

Yang,

et al. 2023

ACS Energy Lett.

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Three-dimensional (3D) metal halide perovskites have received sustained attention for X-ray detection and imaging; however, they incur large dark currents that are dozens of times higher than those of commercial X-ray detectors, severely restricting their application in low-dose X-ray radiography. Herein, we propose an alternative saturated precursor cyclic crystallization method to prepare centimeter-sized CsCu2I3 single crystals (SCs) with a one-dimensional (1D) structure. This desirable 1D structure has the advantage of unidirectional and efficient charge carrier transport, which contributes to the reduction of nonradiative recombination. Therefore, the carrier mobility–lifetime (μτ) product and sensitivity of the fabricated CsCu2I3 X-ray detector are 0.01847 cm2 V–1 and 424 μC Gy–1 cm–2, respectively. Impressively, a minimum detectable X-ray dose rate of 0.93 nGy s–1 is obtained, which is significantly lower than that of traditional perovskite-based detectors. Moreover, the fabricated X-ray detectors also achieve direct X-ray imaging with good stability. Our work paves the way for low-dimensional copper halides in next-generation solution-processed high-performance X-ray detectors.

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confidence: 99%

One-Dimensional CsCu₂I₃ Single-Crystal X-ray Detectors

Wang,

Yang,

et al. 2023

ACS Energy Lett.

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“…The energy that is imparted to the X-ray-absorbing materials inside the detector is likely enhanced as the applied voltage is increased, leading to an increased CCD and sensitivity. 47 This finding points to the potential of voltage manipulation as a useful tool for tuning and optimizing the performance of X-ray detectors, enabling greater adaptability in a range of applications where precise control of sensitivity and current collection is crucial, such as medical imaging and industrial radiography. A notable finding in the context of X-ray detectors is the observed direct relationship between the CCD and the absorbance dose, which is shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Metal oxide-embedded carbon-based materials for polymer solar cells and X-ray detectors

Aftab,

Liu,

Vikraman

et al. 2024

Nanoscale

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“…Flexible X-ray detectors are desirable for possible attachment to the human body for dose rate monitoring. [237] Tsai et al demonstrated BA 2 MA 2 Pb 3 I 10 and BA 2 MA 4 Pb 5 I 16 quasi-2D perovskite polycrystalline films for flexible X-ray detectors. [238] Perovskite layers with thicknesses up to 10 μm were deposited on rigid and flexible substrates by a hot casting method (Figure 10d).…”

Section: Direct X-ray Detectormentioning

confidence: 99%

“…Flexible X‐ray detectors are desirable for possible attachment to the human body for dose rate monitoring. [ 237 ] Tsai et al. demonstrated BA 2 MA 2 Pb 3 I 10 and BA 2 MA 4 Pb 5 I 16 quasi‐2D perovskite polycrystalline films for flexible X‐ray detectors.…”

Section: Applicationsmentioning

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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Flexible perovskite scintillators and detectors for X-ray detection

Cited by 36 publications

References 118 publications

One-Dimensional CsCu₂I₃ Single-Crystal X-ray Detectors

One-Dimensional CsCu₂I₃ Single-Crystal X-ray Detectors

Metal oxide-embedded carbon-based materials for polymer solar cells and X-ray detectors

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

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Flexible perovskite scintillators and detectors for X-ray detection

Cited by 36 publications

References 118 publications

One-Dimensional CsCu2I3 Single-Crystal X-ray Detectors

One-Dimensional CsCu2I3 Single-Crystal X-ray Detectors

Metal oxide-embedded carbon-based materials for polymer solar cells and X-ray detectors

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

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Product

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One-Dimensional CsCu₂I₃ Single-Crystal X-ray Detectors

One-Dimensional CsCu₂I₃ Single-Crystal X-ray Detectors