Single-crystalline layered metal-halide perovskite nanowires for ultrasensitive photodetectors

Feng, Jiangang; Gong, Cheng; Gao, Hanfei; Wen, Wen; Gong, Yanjun; Jiang, Xiangyu; Zhang, Bo; Wu, Yuchen; Wu, Yishi; Fu, Hongbing; Jiang, Lei; Zhang, Xiang

doi:10.1038/s41928-018-0101-5

Cited by 396 publications

(433 citation statements)

References 36 publications

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“…Then, Feng et al proposed 2D‐perovskite ((BA) 2 (MA) n − 1 Pb n I 3n + 1 . BA is butylammonium, MA is methylammonium, and n (n = 2, 3, 4, 5) is layer number) nanowire arrays . The planning of the spatial distribution of the nanowire array is based on the following three considerations: (a) suppressing dark current; (b) facilitating decomposition of excitons into long‐lived free carriers to enhance photocurrent; and (c) amplifying optical response.…”

Section: Photoconductive Photodetectorsmentioning

confidence: 99%

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Recent advances on organic‐inorganic hybrid perovskite photodetectors with fast response

Yan

Shen

2019

InfoMat

107

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In the last decade, optoelectronic devices based on organic‐inorganic hybrid perovskite (OIHP) materials, which have unique advantages of direct bandgap, large absorption coefficient, low density of defects, long charge carrier lifetime, diffusion length, and solution processability, have traveled with traditional inorganic semiconductor devices. The state‐of‐the‐art OIHP photodetectors have contributed a comparable performance with Si and III‐V compound semiconductor based photodetectors. Large amount of efforts have been focused on improving sensitivity, broadening detection spectra, enlarging linear dynamic range. However, few reports emphasized the important parameter of response speed. In this review, we summarize the progress and applications of OIHP photodetectors with fast response. Based on photovoltaic and photoconductive‐type OIHP photodetectors, the working principle and key factors on determining response speed are systematically mentioned. Then, the research progress of response speed, which is composed of resistance‐capacitance (RC) time constant and charge carrier transit time is discussed in detail. Subsequently, considering the intrinsic flexibility of perovskite materials, we briefly discuss the flexible photodetectors. Finally, an outlook and potential rules for designing fast‐response OIHP photodetectors are further proposed.

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Section: Photoconductive Photodetectorsmentioning

confidence: 99%

Section: Photoconductive Photodetectorsmentioning

confidence: 99%

Recent advances on organic‐inorganic hybrid perovskite photodetectors with fast response

Yan

Shen

2019

InfoMat

107

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“…Therefore, this will be advantageous to the assembly of fast‐response photodetectors, since response speed is closely bound up with charge transport dynamics . Inspired by such results, highly oriented thin films along the 2D inorganic perovskite layers might be the promising candidates for exploring superfast response photodetector …”

mentioning

confidence: 99%

Highly Oriented Thin Films of 2D Ruddlesden‐Popper Hybrid Perovskite toward Superfast Response Photodetectors

Han

Yao

Liu

et al. 2019

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2D hybrid perovskites have shown great promise in the photodetection field, due to their intriguing attributes stemming from unique structural architectures. However, the great majority of detectors based on this 2D system possess a relatively low response speed (≈ms), making it extremely urgent to develop new candidates for superfast photodetection. Here, a new organic–inorganic hybrid perovskite, (PA)2(FA)Pb2I7 (EFA, where PA is n‐pentylaminium and FA is formamidine), which features the 2D Ruddlesden–Popper type perovskite framework that is composed of the corner‐sharing PbI6 octahedra is reported. Significantly, photodetectors fabricated on highly oriented thin films, which exhibit a perfect orientation parallel to 2D inorganic perovskite layers, exhibit a superfast response time up to ≈2.54 ns. To the best of the knowledge, this figure‐of‐merit catches up with that of the top‐ranking commercial materials, and sets a new record for 2D hybrid perovskite photodetectors. Moreover, extremely high photodetectivity (≈1.73 × 1014 Jones, under an incident power intensity of ≈46 µW cm−2), considerable switching ratios (>103), and low dark current (≈10 pA) are also achieved in the detector, indicating its great potential for high‐efficiency photodetection. These results shed light on the possibilities to explore new 2D candidates for assembling future high‐performance optoelectronic devices.

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“…The L normally has ammonium cations that can react with the terminated [BX 6 ] 4− corner‐shared layer and fit the periphery of these octahedra. These RP‐type perovskites can be assembled into a bulk crystal or other nanostructures through the van der Waals interaction of each layer, keeping quantum confinement effects unchanged . In this section, we concentrate on the synthesis methods and corresponding applications of nanoplatelets based on 3D networks and partially discuss the 2D RP‐phase assembled bulk perovskites when referring to some optoelectronic applications.…”

Section: D Metal Halide Perovskitesmentioning

confidence: 99%

“…Mostly, these “structure‐level” low‐dimensional perovskites are made up of the 3D networks of corner‐sharing [BX 6 ] 4− octahedra, the same as that in bulk ABX 3 perovskites. In some specific cases, these nanostructures also consist of “material‐level” low‐dimensional individual species (layers, wires, or polyhedrons) as well . From the above discussion, “structure‐level” and “material‐level” low dimensionalities are used to elaborate on different aspects and are not on opposite sides due to the partial overlap.…”

Section: Introductionmentioning

confidence: 99%

Low‐dimensional metal halide perovskites and related optoelectronic applications

Zhu

2020

InfoMat

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Low‐dimensional materials have pivotal significance in modern photonic, electronic, and optoelectronic areas due to their unique properties of the scale effect. Metal halide perovskites have revived in the optoelectronic fields recently, drawing intensive attention in photovoltaic devices, light‐emitting diodes, lasers, photodetectors, and so on. Compared to their three‐dimensional counterparts, the role of low‐dimensional perovskites is becoming crucial, requiring a comprehensive understanding and exploration unceasingly. In this review, we examine low‐dimensional perovskite of different forms and clarify various synthesis methods with morphological and dimensional control. Additionally, we also summarize potential optoelectronic applications based on their advantageous optical/electrical properties and enhanced mechanical integrity and stability. Finally, we propose a future perspective and possible developing directions in the exploration of novel perovskite‐derived materials, new physics, and promising applications.

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Single-crystalline layered metal-halide perovskite nanowires for ultrasensitive photodetectors

Cited by 396 publications

References 36 publications

Recent advances on organic‐inorganic hybrid perovskite photodetectors with fast response

Recent advances on organic‐inorganic hybrid perovskite photodetectors with fast response

Highly Oriented Thin Films of 2D Ruddlesden‐Popper Hybrid Perovskite toward Superfast Response Photodetectors

Low‐dimensional metal halide perovskites and related optoelectronic applications

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