Synthesis, optoelectronic properties and applications of halide perovskites

Chouhan, Lata; Ghimire, Sushant; Subrahmanyam, Ch.; Miyasaka, Tsutomu; Biju, Vasudevanpillai

doi:10.1039/c9cs00848a

Cited by 364 publications

(252 citation statements)

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“…[17][18][19] Their success can be attributed to strong absorption of ionizing radiation due to presence of heavy atoms (Pb, I, and Br), high charge carrier mobilities, long exciton diffusion, long charge carrier lifetime, and excellent optical properties. [20][21][22][23][24] Single crystal [19,[25][26][27][28][29][30][31] and thick film [32][33][34][35][36] perovskite X-ray detectors have been the focal point of current research, often incorporated in a lateral photoconductor radiation detector architecture. This kind of devices show an outstanding sensitivity as well as fast, stable, and reproducible response.…”

Section: Introductionmentioning

confidence: 99%

Designing Ultraflexible Perovskite X‐Ray Detectors through Interface Engineering

et al. 2020

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X-ray detectors play a pivotal role in development and advancement of humankind, from far-reaching impact in medicine to furthering the ability to observe distant objects in outer space. While other electronics show the ability to adapt to flexible and lightweight formats, state-of-the-art X-ray detectors rely on materials requiring bulky and fragile configurations, severely limiting their applications. Lead halide perovskites is one of the most rapidly advancing novel materials with success in the field of semiconductor devices. Here, an ultraflexible, lightweight, and highly conformable passively operated thin film perovskite X-ray detector with a sensitivity as high as 9.3 ± 0.5 µC Gy −1 cm −2 at 0 V and a remarkably low limit of detection of 0.58 ± 0.05 Gy s −1 is presented. Various electron and hole transporting layers accessing their individual impact on the detector performance are evaluated. Moreover, it is shown that this ultrathin form-factor allows for fabrication of devices detecting X-rays equivalently from front and back side.

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Section: Introductionmentioning

confidence: 99%

Designing Ultraflexible Perovskite X‐Ray Detectors through Interface Engineering

et al. 2020

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“… 8 − 12 Now, fabricating perovskite SCTFs in controllable manners is the main challenge for the future commercialization of high-performance optoelectronic devices. 13 …”

Section: Introductionmentioning

confidence: 99%

Effects of ITO Substrate Hydrophobicity on Crystallization and Properties of MAPbBr₃ Single-Crystal Thin Films

Jiang

Sun

et al. 2020

ACS Omega

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Fabricating perovskite single-crystal thin films (SCTFs) in controllable manner is the major challenge for the promising potential applications in optoelectronic devices. Although modifying the substrate surface is frequently used to realize the controlled growth of perovskite SCTFs, it is still unclear how the substrate condition affects the crystallization process. In this work, we systemically investigated the effects of the surface hydrophobicity of indium tin oxide substrates on the crystallization process of MAPbBr 3 SCTFs prepared by the space-confined method. Comprehensive characterizations show that the surface morphology and crystallinity of SCTFs are improved, and the defect density is reduced when increasing the substrate hydrophobicity. The best MAPbBr 3 thin film obtained has a full width at half-height of the rocking curve of the (001) crystal plane of 0.044°. The mechanism of the substrate hydrophobicity on the crystal growth is also discussed. These results will provide guidance to the controllable growth of high-quality SCTFs for perovskite SCTF devices.

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“…The energy lost by the photon is gained by the scattering electron, which is excited to a higher energy state. The linear absorption coefficient ( C ) for Compton scattering is given by [42,43] C ≈ ∕(E) 1∕2 (8) The process leads to the generation of lower energy exciton (loosely bound hole-electron pair) that is transported to defect states, or activators, within the scintillating material that ultimately recombines and generate visible photons. The emitted light can then be detected using different types of photodetectors such as Si photodiodes, thin-film phototransistors (photo-TFTs), photomultiplier tubes (PMTs), complementary metaloxide-semiconductor (CMOS) photodetectors, silicon avalanche photodiodes, or charge-coupled devices (CCDs) coupled with the scintillator element.…”

Section: Indirect X-ray Detectionmentioning

confidence: 99%

Metal Halide Perovskites for High‐Energy Radiation Detection

et al. 2020

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Metal halide perovskites (MHPs) have emerged as a frontrunner semiconductor technology for application in third generation photovoltaics while simultaneously making significant strides in other areas of optoelectronics. Photodetectors are one of the latest additions in an expanding list of applications of this fascinating family of materials. The extensive range of possible inorganic and hybrid perovskites coupled with their processing versatility and ability to convert external stimuli into easily measurable optical/electrical signals makes them an auspicious sensing element even for the high-energy domain of the electromagnetic spectrum. Key to this is the ability of MHPs to accommodate heavy elements while being able to form large, high-quality crystals and polycrystalline layers, making them one of the most promising emerging X-ray and-ray detector technologies. Here, the fundamental principles of high-energy radiation detection are reviewed with emphasis on recent progress in the emerging and fascinating field of metal halide perovskite-based X-ray and-ray detectors. The review starts with a discussion of the basic principles of high-energy radiation detection with focus on key performance metrics followed by a comprehensive summary of the recent progress in the field of perovskite-based detectors. The article concludes with a discussion of the remaining challenges and future perspectives.

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Synthesis, optoelectronic properties and applications of halide perovskites

Abstract: Halide perovskites have emerged as a class of most promising and cost-effective semiconductor materials for next generation photoluminescent, electroluminescent and photovoltaic devices.

Cited by 364 publications

References 50 publications

Designing Ultraflexible Perovskite X‐Ray Detectors through Interface Engineering

Designing Ultraflexible Perovskite X‐Ray Detectors through Interface Engineering

Effects of ITO Substrate Hydrophobicity on Crystallization and Properties of MAPbBr₃ Single-Crystal Thin Films

Metal Halide Perovskites for High‐Energy Radiation Detection

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Synthesis, optoelectronic properties and applications of halide perovskites

Abstract: Halide perovskites have emerged as a class of most promising and cost-effective semiconductor materials for next generation photoluminescent, electroluminescent and photovoltaic devices.

Cited by 364 publications

References 50 publications

Designing Ultraflexible Perovskite X‐Ray Detectors through Interface Engineering

Designing Ultraflexible Perovskite X‐Ray Detectors through Interface Engineering

Effects of ITO Substrate Hydrophobicity on Crystallization and Properties of MAPbBr3 Single-Crystal Thin Films

Metal Halide Perovskites for High‐Energy Radiation Detection

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Effects of ITO Substrate Hydrophobicity on Crystallization and Properties of MAPbBr₃ Single-Crystal Thin Films