Detection of charged particles with a methylammonium lead tribromide perovskite single crystal

Xu, Qiang; Wei, Haotong; Wei, Wei; Chuirazzi, William; DeSantis, Dylan; Huang, Jinsong; Cao, Lei

doi:10.1016/j.nima.2016.12.062

Cited by 66 publications

(58 citation statements)

References 20 publications

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“…For example, because of the low dark carrier density, high absorptivity, and high mobility–lifetime product, Kovalenko and co‐workers demonstrated that 0.3–1 cm perovskite single crystals (MAPbI 3 , FAPbI 3 , and I‐treated MAPbBr 3 ) were able to detect gamma photons . Huang and co‐workers demonstrated a MAPbBr 3 singe crystal‐based photoconductor with MSM structure, which was capable of detecting the energy spectrum of charged particles …”

Section: Various Perovskite Structures For Photodetectorsmentioning

confidence: 99%

Hybrid Organic–Inorganic Perovskite Photodetectors

Tian

Zhou

2017

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378

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Hybrid organic-inorganic perovskite materials garner enormous attention for a wide range of optoelectronic devices. Due to their attractive optical and electrical properties including high optical absorption coefficient, high carrier mobility, and long carrier diffusion length, perovskites have opened up a great opportunity for high performance photodetectors. This review aims to give a comprehensive summary of the significant results on perovskite-based photodetectors, focusing on the relationship among the perovskite structures, device configurations, and photodetecting performances. An introduction of recent progress in various perovskite structure-based photodetectors is provided. The emphasis is placed on the correlation between the perovskite structure and the device performance. Next, recent developments of bandgap-tunable perovskite and hybrid photodetectors built from perovskite heterostructures are highlighted. Then, effective approaches to enhance the stability of perovskite photodetector are presented, followed by the introduction of flexible and self-powered perovskite photodetectors. Finally, a summary of the previous results is given, and the major challenges that need to be addressed in the future are outlined. A comprehensive summary of the research status on perovskite photodetectors is hoped to push forward the development of this field.

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Section: Various Perovskite Structures For Photodetectorsmentioning

confidence: 99%

Hybrid Organic–Inorganic Perovskite Photodetectors

Tian

Zhou

2017

Small

378

277

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“…42,43 Comparing to the reported μτ values using α pulse height spectra fitting by the Hecht equation, Liu et al 39 revealed that the (μτ) e in MAPbBr 3 crystal is 2.2 × 10 −4 cm 2 /V by using Au/MAPbBr 3 / Au devices. Xu 27 obtained a (μτ) h of 4 × 10 −4 cm 2 /V.…”

Section: Acs Applied Materials and Interfacesmentioning

confidence: 99%

“…32,33 The adhesion between a magnetron-sputtered AZO film and the MAPbBr 3 PSC is relatively high, which is easy to standardize and scale up in comparison to C 60 , or BCP. 11,27,34 A device with AZO has a simple structure, and there are no issues related to multiple interface matching. Moreover, the charge recombination at the perovskite interface can be suppressed and the CCE can be improved by AZO films.…”

Section: ■ Introductionmentioning

confidence: 99%

Enhanced X-ray Sensitivity of MAPbBr₃ Detector by Tailoring the Interface-States Density

Li¹,

Liu²,

Zhang³

et al. 2019

ACS Appl. Mater. Interfaces

112

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An important factor for the high performance of lightharvesting devices is the presence of surface trappings. Therefore, understanding and controlling the carrier recombination of the organic−inorganic hybrid perovskite surface is critical for the device design and optimization. Here, we report the use of aluminum zinc oxide (AZO) as the anode to construct a p−n junction structure MAPbBr 3 nuclear radiation detector. The AZO/MAPbBr 3 /Au detector can tolerate an electrical field of 500 V•cm −1 and exhibit a very low leakage current of ∼9 nA, which is 1 order of magnitude lower than that of the standard ohmic contact device. The interface state density of AZO/MAPbBr 3 contact was reduced from 2.17 × 10 10 to 8.7 × 10 8 cm −2 by annealing at 100°C under an Ar atmosphere. Consequently, a photocurrent to dark current ratio of 190 was realized when exposed to a green light-emitting diode with a wavelength of 520 nm (∼200 mW•cm −2). Simultaneously, a high X-ray sensitivity of ∼529 μC•Gy air −1 cm −2 was achieved under 80 kVp X-ray at an electric field of 50 V•cm −1. These results demonstrate the use of surface engineering to further optimize the performance of MAPbBr 3 detectors, which have many potential applications in medical and security detection with low radiation dose brought to the human body.

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“…Recently, hybrid perovskite material(ABX 3 , A = CH 3 NH 3 + or MA, HC(NH 2 ) 2 + or FA; B = Pb 2+ , Sn 2+ ; X = Cl − , Br − , I − ) has been widely used in solar cell, LED, visible light detection due to its high absorption coefficient, high charge carrier mobility, tunable bandgap and also has achieved a huge success in radiation detection . Many radiation detectors based on organic–inorganic perovskite single crystals have been synthesized and showed excellent performance . However, the perovskite single crystals are limited in preparation of the large areas and flexible devices, so the research of perovskite film is truly necessary.…”

Section: Comparison Of the Relevant Device Parameters Of The X‐ray Dementioning

confidence: 99%

Self‐Powered X‐Ray Detector Based on All‐Inorganic Perovskite Thick Film with High Sensitivity Under Low Dose Rate

Gou

Huanglong

et al. 2019

Physica Rapid Research Ltrs

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Hybrid perovskite materials have been one of the brightest spotlights in the radiation detection research fields due to their higher carrier mobility and lower trap state density in recent years. In this paper, the CsPbBr3 microcrystal thick film is successfully prepared using a low‐cost facile solution synthesis method. The properties of samples are characterized by field‐emission scanning electron microscope (FE‐SEM), X‐ray diffraction (XRD), and UV‐vis diffuse reflectance spectrum (UV‐vis DRS). In addition, X‐ray detectors based on the CsPbBr3 microcrystal thick film are fabricated and the photoelectric properties of the detectors are further improved through the multiple‐times dissolution–recrystallization method. An improved sensitivity of 470 µC Gyair−1 cm−2 is obtained for X‐ray photodetector based on recrystallized CsPbBr3 microcrystal thick film at zero bias under a remarkably low dose rate (0.053 µGyair s−1). This sensitivity is over 20 times higher than that of α‐Se X‐ray detectors working at a much higher field of 10 V µm−1. The current investigation can provide an efficient low‐cost and facile method to fabricate self‐powered X‐ray detectors based on CsPbBr3 microcrystal thick film that work normally at low radiation dose rate.

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Detection of charged particles with a methylammonium lead tribromide perovskite single crystal

Cited by 66 publications

References 20 publications

Hybrid Organic–Inorganic Perovskite Photodetectors

Hybrid Organic–Inorganic Perovskite Photodetectors

Enhanced X-ray Sensitivity of MAPbBr₃ Detector by Tailoring the Interface-States Density

Self‐Powered X‐Ray Detector Based on All‐Inorganic Perovskite Thick Film with High Sensitivity Under Low Dose Rate

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Detection of charged particles with a methylammonium lead tribromide perovskite single crystal

Cited by 66 publications

References 20 publications

Hybrid Organic–Inorganic Perovskite Photodetectors

Hybrid Organic–Inorganic Perovskite Photodetectors

Enhanced X-ray Sensitivity of MAPbBr3 Detector by Tailoring the Interface-States Density

Self‐Powered X‐Ray Detector Based on All‐Inorganic Perovskite Thick Film with High Sensitivity Under Low Dose Rate

Contact Info

Product

Resources

About

Enhanced X-ray Sensitivity of MAPbBr₃ Detector by Tailoring the Interface-States Density