Gradient 2D–3D Ruddlesden-Popper perovskite film for high-performance self-powered photodetectors

Miao, Yuchen; Qi, Xiaorong; Liu, Yang; Xu, Wenbin; Zheng, Fei; Zhao, Feiyu; Shafique, Shareen; Zhu, Yuejin; Hu, Ziyang

doi:10.1016/j.nanoen.2023.108605

Cited by 20 publications

(13 citation statements)

References 49 publications

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“…Moreover, with NDI-DPP mixed with the PPA 2 PbI 4 :MAPbI 3 , the (PPA 2 PbI 4 :MAPbI 3 ):NDI-DPP thin film possesses diffraction peaks in the 2D-α and 2D-β phases (Figure a–c), indicating that NDI-DPP could induce the PPA 2 PbI 4 :MAPbI 3 composite thin film to grow along the vertical direction. Thus, compared to the PPA 2 PbI 4 :MAPbI 3 thin film, the (PPA 2 PbI 4 :MAPbI 3 ):NDI-DPP thin film is anticipated to have enhanced charge carrier mobility …”

Section: Resultsmentioning

confidence: 99%

“…As a result, at RT, the ternary MHPs-conjugated polymer PDs exhibit a photoresponse ranging from 370 to 1200 nm, a detectivity of ∼10 11 cm Hz 1/2 W −1 (jones) in the UV−visible region, and a detectivity of ∼10 10 jones in the NIR region. 28 To verify the above hypothesis, the electron mobilities of both PPA 2 PbI 4 :MAPbI 3 and (PPA 2 PbI 4 :MAPbI 3 ):NDI-DPP thin films are studied according to the space charge limited current (SCLC) method, which is based on the Mott−Gurney model. 29,30 The electron mobility (μ e ) is described as J = (9εε 0 μv 2 )/(8L 3 ), where J is the current density, V is the external bias, L is the thickness of the active layer, ε 0 is the vacuum permittivity (8.55 × 10 −12 F m −1 ), and ε is the relative dielectric constant for the active layer.…”

Section: Introductionmentioning

confidence: 99%

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Solution-Processed Ternary Perovskite-Conjugated Polymer Photodetector with a Photoresponse up to 1200 nm

Shen,

Zhang,

Liu

et al. 2024

ACS Appl. Electron. Mater.

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Broadband photodetectors have been used in various scientific and industrial sectors. Studies indicated that hybrid organic−inorganic metal halide perovskites (MHPs) are one of the semiconductors used for approaching sensitive photodetectors. Here, we reported solution-processed broadband photodetectors based on the ternary MHPs-conjugated polymer composites, which are operated at room temperature, where the ternary MHPs-conjugated polymer composites are composed of three-dimensional MHPs mixed with two-dimensional MHPs and then incorporated with low bandgap conjugated polymer. The ternary MHPs-conjugated polymer composites possess enhanced charge carrier mobility and suppressed defects. As a result, the ternary MHPsconjugated polymer photodetectors exhibit a broad photoresponse, boosted photocurrent, and suppressed dark current, resulting in a detectivity of ∼10 11 cm Hz 1/2 W −1 (jones) from the ultraviolet to visible region and a detectivity of ∼10 10 jones in the near-infrared region. Our studies indicate that we provide a simple way to approach broadband photodetectors based on the ternary MHPs-conjugated polymer composites.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Solution-Processed Ternary Perovskite-Conjugated Polymer Photodetector with a Photoresponse up to 1200 nm

Shen,

Zhang,

Liu

et al. 2024

ACS Appl. Electron. Mater.

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“…When dark current is dominated by shot noise, 1/f noise can be ignored. 37,38 D* can be calculated using the following formula:…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The noise of a photodetector working at a nonlow frequency is mainly caused by the shot noise from the dark current. When dark current is dominated by shot noise, 1/f noise can be ignored. , D * can be calculated using the following formula: D * = R A rea 2 q I dark where A rea refers to the effective area of the detector and q represents the elementary charge. Figure d, e shows the relationship curves of responsivity and detectivity with applied bias voltage under different white light intensities of the optimized device.…”

Section: Resultsmentioning

confidence: 99%

High-Performance Lead-Free Layered-Perovskite Photodetectors and Bipolar Transistors by Solvent Engineering

Wu,

Miao,

et al. 2023

ACS Photonics

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“…In recent years, the predominant use of metal-based materials for photodetector synthesis has become a common practice. Despite their widespread use, these photodetectors often fall short in terms of efficiency when it comes to light detection and response [4][5][6]. Notably, the development of infrared (IR) photodetectors has involved the utilization of CuO nanowires.…”

Section: Introductionmentioning

confidence: 99%

One pot synthesizing of cobalt (III) and (IV) oxides/polypyrrole nanocomposite for light sensing in wide optical range

Rabia,

Ben Gouider Trabelsi,

Alkallas

et al. 2024

Phys. Scr.

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A highly porous potato-shaped nanocomposite, Co(111) and Co(IV) oxide/polypyrrole (Co2O3-Co3O4/Ppy), is synthesized employing a one-pot procedure involving the slow oxidation of pyrrole using Co(NO3)2. The exceptional physical characteristics of this nanocomposite are accompanied by impressive optical properties, marked by a bandgap of 1.72 eV. Its absorbance spans across the UV, visible (Vis), and infrared (IR) regions, making it a promising candidate for optoelectronic applications such as photodetectors designed for light sensing within this extensive optical range that encompasses a substantial portion of the electromagnetic spectrum.This Co2O3-Co3O4/Ppy thin film photodetector is subjected to electrical testing under varying light conditions, leading to the determination of the photocurrent density (Jph) value of 0.26 mA.cm-2. When evaluated under different monochromatic light sources ranging from 340 to 730 nm, distinct Jph values are observed for each wavelength, reflecting the nanocomposite's ability to effectively interact with photons across this spectrum. The measured responsivity (R) and detectivity (D) values further underscore the photodetector's efficiency. At 340 nm, the R and D values stand at 1.22 mA.W-1 and 0.275x109 Jones, respectively. Similarly, at 730 nm, these values are 1.21 mA.W-1 and 0.270x109 Jones. The combination of these favorable findings, including cost-effectiveness and high stability, position the Co2O3-Co3O4/Ppy nanocomposite as an optimal choice for a wide range of industrial applications, attesting to its potential impact in the field.

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Gradient 2D–3D Ruddlesden-Popper perovskite film for high-performance self-powered photodetectors

Cited by 20 publications

References 49 publications

Solution-Processed Ternary Perovskite-Conjugated Polymer Photodetector with a Photoresponse up to 1200 nm

Solution-Processed Ternary Perovskite-Conjugated Polymer Photodetector with a Photoresponse up to 1200 nm

High-Performance Lead-Free Layered-Perovskite Photodetectors and Bipolar Transistors by Solvent Engineering

One pot synthesizing of cobalt (III) and (IV) oxides/polypyrrole nanocomposite for light sensing in wide optical range

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