Antisolvent‐Induced Fastly Grown All‐Inorganic Perovskite CsPbCl<sub>3</sub> Microcrystal Films for High‐Sensitive UV Photodetectors

Zhu, Zhihao; Deng, Wen; Wen, Li; Chun, Fengjun; Luo, Chao; Xie, Meilin; Pu, Ben; Lin, Na; Gao, Bo; Yang, Weiqing

doi:10.1002/admi.202001812

Cited by 34 publications

(35 citation statements)

References 49 publications

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“…Due to the extremely low solubility of the CsCl precursor in existing solvents, almost all of the CsPbCl 3 photodetectors previously reported are composed of CsPbCl 3 micro- − or nanostructures, − whereas the preparation of a high-quality CsPbCl 3 polycrystalline film still remains a big challenge. The research studies on CsPbCl 3 photodetector started late compared to other types of perovskite photodetectors.…”

Section: Introductionmentioning

confidence: 99%

“…Very recently, Yang’s group put forward an antisolvent-assisted crystallization recipe to prepare continuous CsPbCl 3 microcrystal films. The best-performing photodetector based on the film delivered a high D * of 5.6 × 10 12 Jones and an R of 2.11 A/W at a 4 V bias . Single crystals of CsPbCl 3 were also employed to detect UV signals but the D * was considerably low (1.588 × 10 10 Jones) .…”

Section: Introductionmentioning

confidence: 99%

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Boosting the Performance of Self-Powered CsPbCl₃-Based UV Photodetectors by a Sequential Vapor-Deposition Strategy and Heterojunction Engineering

Zhan

Zhang

et al. 2021

ACS Appl. Mater. Interfaces

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All-inorganic CsPbCl 3 perovskite in ultraviolet (UV) detection is drawing increasing interest owing to its UVmatchable optical band gap, ultrahigh UV stability, and superior inherent optoelectronic properties. Almost all of the reported CsPbCl 3 photodetectors employ CsPbCl 3 nano-or microstructures as sensitive components, while CsPbCl 3 polycrystalline filmbased self-powered photodetectors are rarely studied on account of the terrible precursor solubility. Herein, a novel sequential vapordeposition technique is demonstrated to fabricate CsPbCl 3 polycrystalline film for the first time. High-quality CsPbCl 3 films with excellent optical, electronic, and morphological features are obtained. A self-powered photodetector based on the CsPbCl 3 film is constructed without any charge transport layer, showing a high UV detection performance. A thin p-type PbS buffer layer is further introduced to passivate the surface defects of the CsPbCl 3 layer and decrease the interfacial energy barrier by forming a type-II heterojunction, contributing to a faster hole extraction rate and a suppressed dark current level. The best-performing device achieves an ultrafast response time of 1.92 μs, an ultrahigh on/off ratio of 2.22 × 10 5 , and a responsivity of 0.22 A/W upon 375 nm UV illumination at 0 V bias. This comprehensive performance is the best among all of the CsPbCl 3 photodetectors reported to date. The as-prepared photodetectors also present an eminent UV irradiation and long-term durability in ambient air. Furthermore, a largearea and uniform 625-pixel UV image sensor is fabricated and attains a prominent imaging capability. Our work opens a new avenue for the scalable production of CsPbCl 3 -based optoelectronics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Boosting the Performance of Self-Powered CsPbCl₃-Based UV Photodetectors by a Sequential Vapor-Deposition Strategy and Heterojunction Engineering

Zhan

Zhang

et al. 2021

ACS Appl. Mater. Interfaces

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“…Under 365 nm illumination, the device achieved responsivity of 2.11 A W À1 and rise/decay time of 77 ms/63 ms (Figure 9e,f ). [69] The difference between the results of the two studies may be mainly due to the different grain size of CsPbCl 3 films, which could affect the transport of carriers. Under 365 nm light irradiation and 15 V bias, the photodetector was reported to achieve a responsivity of 2.27 A W À1 , an external quantum efficiency of 772%, and detectivity of 6.07 Â 10 11 Jones (Figure 10b-d).…”

Section: Cspbx 3 (X ¼ Br Cl)mentioning

confidence: 96%

“…Under 365 nm illumination, the device achieved responsivity of 2.11 A W −1 and rise/decay time of 77 ms/63 ms (Figure 9e,f). [ 69 ] The difference between the results of the two studies may be mainly due to the different grain size of CsPbCl 3 films, which could affect the transport of carriers.…”

Section: Ultraviolet Light Photodetectorsmentioning

confidence: 99%

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Recent Progress on the Performance of Lead‐Based Halide Perovskite APbX₃ Detectors

Chen

Feng

Pal

et al. 2022

Physica Status Solidi (a)

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Lead‐based halide perovskites APbX3 are likely to become competitive candidates in applications of photodetectors and X/γ‐ray detectors owing to their excellent optical and electrical characteristics, such as high and balanced carrier mobility, long carrier diffusion length, and adjustable bandgap. Based on this system, the article summarizes the performance parameters, such as responsivity, detectivity, external quantum efficiency, and response time of photodetector, and generalizes the research status of its application in near‐infrared light, visible light, and ultraviolet light photodetectors. In addition to that, it also summarizes the recent progress of X/γ‐ray detectors. What is more, the influence of radii of A‐site cations on the photoelectric performance are discussed. Finally, based on these summary and discussion, a research trend could be raised that more and more researchers tend to fabricate APbX3 perovskite with single‐crystalline thin‐film for high‐performance photodetectors in the future. It is proposed that if the A‐site ion is an organic group with a larger radius than the formamidinium (FA+), it may have better photoelectric properties than FAPbX3. Inorganic lead‐based perovskite single crystals with few defects, fast carrier mobility, and good stability are beneficial for attaining low dose rate and high‐energy resolution X/γ‐ray detectors.

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Metal–Organic Framework‐Assisted Metal‐Ion Doping in All‐Inorganic Perovskite for Dual‐Mode Image Sensing Display

Han

Kim

et al. 2022

Adv Funct Materials

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Crystal engineering based on defect passivation with metal ions doped into halide perovskites is of considerable interest for tailoring the photoelectric properties of perovskites. Herein, a simple and robust approach for doping metal ions into a thin all‐inorganic CsPbBr3 perovskite film by employing metal–organic framework nanoparticles is presented. Zeolitic imidazolate framework‐8 nanoparticles, which can adsorb water, are dispersed and embedded in a thin perovskite film. The particles self‐decompose at a certain humidity, releasing Zn2+ ions into nearby perovskite crystals. The Zn2+ ions efficiently passivate the undercoordinated defect sites of the defective perovskite crystals, resulting in environmentally stable and enhanced photoluminescence of the perovskite with a quantum yield of ≈14%, more than 24 times greater than that without nanoparticles. Further, a thin Zn‐doped CsPbBr3 film is employed to fabricate arrays of ultraviolet photodetectors, and ≈90% of the initial photocurrent is maintained over 15 d in RH 60%, facilitating the development of a dual‐mode image sensor using which programmed images are visualized based on both photocurrent and photoluminescence.

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Antisolvent‐Induced Fastly Grown All‐Inorganic Perovskite CsPbCl₃ Microcrystal Films for High‐Sensitive UV Photodetectors

Cited by 34 publications

References 49 publications

Boosting the Performance of Self-Powered CsPbCl₃-Based UV Photodetectors by a Sequential Vapor-Deposition Strategy and Heterojunction Engineering

Boosting the Performance of Self-Powered CsPbCl₃-Based UV Photodetectors by a Sequential Vapor-Deposition Strategy and Heterojunction Engineering

Recent Progress on the Performance of Lead‐Based Halide Perovskite APbX₃ Detectors

Metal–Organic Framework‐Assisted Metal‐Ion Doping in All‐Inorganic Perovskite for Dual‐Mode Image Sensing Display

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Antisolvent‐Induced Fastly Grown All‐Inorganic Perovskite CsPbCl3 Microcrystal Films for High‐Sensitive UV Photodetectors

Cited by 34 publications

References 49 publications

Boosting the Performance of Self-Powered CsPbCl3-Based UV Photodetectors by a Sequential Vapor-Deposition Strategy and Heterojunction Engineering

Boosting the Performance of Self-Powered CsPbCl3-Based UV Photodetectors by a Sequential Vapor-Deposition Strategy and Heterojunction Engineering

Recent Progress on the Performance of Lead‐Based Halide Perovskite APbX3 Detectors

Metal–Organic Framework‐Assisted Metal‐Ion Doping in All‐Inorganic Perovskite for Dual‐Mode Image Sensing Display

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Product

Resources

About

Antisolvent‐Induced Fastly Grown All‐Inorganic Perovskite CsPbCl₃ Microcrystal Films for High‐Sensitive UV Photodetectors

Boosting the Performance of Self-Powered CsPbCl₃-Based UV Photodetectors by a Sequential Vapor-Deposition Strategy and Heterojunction Engineering

Boosting the Performance of Self-Powered CsPbCl₃-Based UV Photodetectors by a Sequential Vapor-Deposition Strategy and Heterojunction Engineering

Recent Progress on the Performance of Lead‐Based Halide Perovskite APbX₃ Detectors