2D-polyimide film sensitized monolayer MoS2 phototransistor enabled near-infrared photodetection

Luo, Qingqing; Feng, Guangyuan; Song, Yaru; Zhang, Enbing; Yuan, Jiangyan; Fa, Dejuan; Sun, Qisheng; Lei, Shengbin; Hu, Wenping

doi:10.1007/s12274-022-4438-8

Cited by 14 publications

(20 citation statements)

References 59 publications

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“…As shown in Figure 2e, the as-obtained 2D MoS 2 /BTP-4F PD has the fastest response speed compared with similar device structure in the literatures. [33,34,44,45] The responsivity (R), detectivity (D*), and the external quantum efficiency (EQE) are key indicators of PD performance and calculated according to the formula…”

Section: Resultsmentioning

confidence: 99%

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Ultrafast Charge Transfer 2D MoS₂/Organic Heterojunction for Sensitive Photodetector

et al. 2023

Advanced Science

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The 2D MoS 2 with superior optoelectronic properties such as high charge mobility and broadband photoresponse has attracted broad research interests in photodetectors (PD). However, due to the atomic thin layer of 2D MoS 2 , its pure photodetectors usually suffer from inevitable drawbacks such as large dark current, and intrinsically slow response time. Herein, a new organic material BTP-4F with high mobility is successfully stacked with 2D MoS 2 film to form an integrated 2D MoS 2 /organic P-N heterojunction, facilitating efficient charge transfer as well as significantly suppressed dark current. As a result, the as-obtained 2D MoS 2 /organic (PD) has exhibited excellent response and fast response time of 332/274 μs. The analysis validated photogenerated electron transition from this monolayer MoS 2 to subsequent BTP-4F film, whereas the transited electron is originated from the A − exciton of 2D MoS 2 by temperature-dependent photoluminescent analysis. The ultrafast charge transfer time of ≈0.24 ps measured by time-resolved transient absorption spectrum is beneficial for efficient electron-hole pair separation, greatly contributing to the obtained fast photoresponse time of 332/274 μs. This work can open a promising window to acquire low-cost and high-speed (PD).

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Section: Resultsmentioning

confidence: 99%

“…As shown in Figure 2e , the as‐obtained 2D MoS 2 /BTP‐4F PD has the fastest response speed compared with similar device structure in the literatures. [ 33 , 34 , 44 , 45 ]…”

Section: Resultsmentioning

confidence: 99%

Ultrafast Charge Transfer 2D MoS₂/Organic Heterojunction for Sensitive Photodetector

et al. 2023

Advanced Science

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“…These hybrids find use in photovoltaics, light-emitting transistors, and other organic electronics. [24][25][26][27][28] In all the cases, the choice of organic molecules should consider their compatibility with the 2D TMD surface, the intended application, and the desired chemical and physical properties of the resulting composite material. Surface functionalization techniques such as chemical modification or physical adsorption are often employed to achieve the desired interactions between organic molecules and 2D TMDs.…”

Section: Types Of Organic Compounds Incorporated With Tmds and Their ...mentioning

confidence: 99%

van der Waals 2D transition metal dichalcogenide/organic hybridized heterostructures: recent breakthroughs and emerging prospects of the device

Obaidulla,

Supina,

Kamal

et al. 2024

Nanoscale Horiz.

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“…2D materials have aroused the attention of researchers working on cutting-edge electronics, optoelectronics, and sensing applications. − Progress in photodetectors based on 2D materials has been realized owing to their acceptable bandgap and several other distinctive features. ,− One prominent member of the 2D materials family is PbI 2 , which offers a direct bandgap of 2.2–2.6 eV in multilayer and an indirect bandgap of 3.72 eV in monolayer, according to the reported theoretical studies . PbI 2 is a layered semiconductor and a key precursor material for the fabrication of lead halide perovskite in which each layer consists of I–Pb–I repeating units stacked along the c -axis.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of Hybrid CdSe Nanobelt/PbI₂ Flake Heterojunction Toward Drastic Performance Flexible Photodetectors

Nawaz

Zhou

et al. 2023

ACS Appl. Mater. Interfaces

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Despite numerous studies on broadband photodetectors, the problematic query that remains unaddressed is the limited photoresponsivity while broadening the spectral regime. Here, for the first time, a rational design of a hybrid 1D CdSe nanobelt/2D PbI 2 flake heterojunction device is constructed, which substantially boosts the photocurrent while significantly attenuating the dark current, resulting in improved photodetector figures-of-merit. Thanks to the excellent quality of the nanobelt/ flake and built-in electric field at the CdSe/PbI 2 interface heterojunction, photogenerated carriers are promptly segregated and more photoexcitons are accumulated by the respective electrodes, enabling a high responsivity of ∼10 6 A/W, making this one of the highest values among similar reported hybrid heterojunction photodetectors, together with a large linear dynamic range, superior sensitivity, excellent detectivity and external quantum efficiency, an ultrafast response, and a broadband spectral response range. The similar 1D/2D hybrid heterojunction device architecture assembled on the flexible polyimide tape substrate exhibits excellent folding endurance and mechanical, flexural, and long-term environmental stability. The present device architecture and robust operational stability in an ambient environment reveals that the combination of the present 1D/2D hybrid heterojunction has incredible potential for future flexible photoelectronic devices.

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2D-polyimide film sensitized monolayer MoS2 phototransistor enabled near-infrared photodetection

Cited by 14 publications

References 59 publications

Ultrafast Charge Transfer 2D MoS₂/Organic Heterojunction for Sensitive Photodetector

Ultrafast Charge Transfer 2D MoS₂/Organic Heterojunction for Sensitive Photodetector

van der Waals 2D transition metal dichalcogenide/organic hybridized heterostructures: recent breakthroughs and emerging prospects of the device

Synergistic Effect of Hybrid CdSe Nanobelt/PbI₂ Flake Heterojunction Toward Drastic Performance Flexible Photodetectors

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2D-polyimide film sensitized monolayer MoS2 phototransistor enabled near-infrared photodetection

Cited by 14 publications

References 59 publications

Ultrafast Charge Transfer 2D MoS2/Organic Heterojunction for Sensitive Photodetector

Ultrafast Charge Transfer 2D MoS2/Organic Heterojunction for Sensitive Photodetector

van der Waals 2D transition metal dichalcogenide/organic hybridized heterostructures: recent breakthroughs and emerging prospects of the device

Synergistic Effect of Hybrid CdSe Nanobelt/PbI2 Flake Heterojunction Toward Drastic Performance Flexible Photodetectors

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Product

Resources

About

Ultrafast Charge Transfer 2D MoS₂/Organic Heterojunction for Sensitive Photodetector

Ultrafast Charge Transfer 2D MoS₂/Organic Heterojunction for Sensitive Photodetector

Synergistic Effect of Hybrid CdSe Nanobelt/PbI₂ Flake Heterojunction Toward Drastic Performance Flexible Photodetectors