Flexible Photodetector Based on 2D Materials: Processing, Architectures, and Applications

Dong, Tao; Simões, João; Yang, Zhaochu

doi:10.1002/admi.201901657

Cited by 148 publications

(119 citation statements)

References 160 publications

(169 reference statements)

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“…Figure 5h shows that our device displays a moderate response rate with a rise time and decay time of ≈0.8 s and 3 s, ≈2 s and 3 s, and ≈5 s and 3 s for 633, 1064, and 1450 nm laser illumination (Figure 5h), respectively. The seconds‐level response time of our devices is not fast compared to most of 2D materials‐photodetectors, [ 40–42 ], for example, 6 ms/20 ms of Bi 2 Se 2 O, [ 43 ] 400 µs/200 ms of MoS 2 , [ 44 ] which should be attributed to the photogating effect.…”

Section: Figurementioning

confidence: 99%

Ternary Ta₂PdS₆ Atomic Layers for an Ultrahigh Broadband Photoresponsive Phototransistor

Zeng

Zhu

et al. 2020

Advanced Materials

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Abstract2D noble‐transition‐metal chalcogenides (NTMCs) are emerging as a promising class of optoelectronic materials due to ultrahigh air stability, large bandgap tunability, and high photoresponse. Here, a new set of 2D NTMC: Ta2PdS6 atomic layers is developed, displaying the excellent comprehensive optoelectronic performance with an ultrahigh photoresponsivity of 1.42 × 106 A W−1, detectivity of 7.1 × 1010 Jones and a high photoconductive gain of 2.7 × 106 under laser illumination at a wavelength of 633 nm with a power of 0.025 W m−2, which is ascribed to a photogating effect via study of the device band profiles. Especially, few‐layer Ta2PdS6 exhibits a good broadband photoresponse, ranging from 450 nm in the ultraviolet region to 1450 nm in the shortwave infrared (SIR) region. Moreover, this material also delivers an impressive electronic performance with electron mobility of ≈25 cm2V–1s–1, Ion/Ioff ratio of 106, and a one‐year air stability, which is better than those of most reported 2D materials. Our studies underscore Ta2PdS6 as a promising 2D material for nano‐electronic and nano‐optoelectronic applications.

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Section: Figurementioning

confidence: 99%

Ternary Ta₂PdS₆ Atomic Layers for an Ultrahigh Broadband Photoresponsive Phototransistor

Zeng

Zhu

et al. 2020

Advanced Materials

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“…[80] The resulting hybrid materials often display highly competitive performance, if compared to conventional Si-based devices. In addition, thanks to its flexibility, [81] graphene-based photo-responsive devices are often biocompatible and suitable for prosthetics and e-skin. An interesting example was proposed in a human eye-inspired soft implantable optoelectronic device based on a high-density array of MoS 2 -graphene photodiodes (Figure 4a).…”

Section: Sensingmentioning

confidence: 99%

Bioinspired Design of Graphene‐Based Materials

Christian

Mazzaro

Morandi

2020

Adv Funct Materials

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It can be difficult to know where to begin when considering the research opportunities of a material with such outstanding potential as graphene. When searching for a “killer application,” the researcher often neglects to query the world around them, forgetting that nature has been evolving for billions of years to elegantly solve every day problems. Bioinspiration is an intelligent strategy to nucleate new ideas and speed up the innovation process by providing ready‐made prototypes. Graphene is uniquely placed to take advantage of this approach thanks to its superlative properties and versatile nature. In this review, the state‐of‐the‐art in the bioinspired design of graphene‐based materials has been analyzed, and three distinct sources of inspiration have been identified: natural functions, such as adhesion and actuation; natural structures, such as layers and pores; and natural processes, such as surface functionalization and biomineralization. Implementing this philosophy into further graphene research will provide new ways to solve problems and suggest novel applications that may not otherwise be considered.

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“…Novel functional materials ranging from 0D to 2D, and hybrids (0D‐1D, 0D‐2D, and 1D‐2D) based on these materials have been explored for this purpose. [ 12–15 ] Piezotronics is another means to improve the responsivity upon application of external strain which modulates the depletion region width and increases the electric field and thereby the responsivity. But the issue with piezotronics is that, the application of strain leads to permanent damage in the device, thereby decreasing the reliability of the photodetector.…”

Section: Introductionmentioning

confidence: 99%

MoS₂/Paper Decorated with Metal Nanoparticles (Au, Pt, and Pd) Based Plasmonic‐Enhanced Broadband (Visible‐NIR) Flexible Photodetectors

Selamneni

Raghavan

Hazra

et al. 2021

Adv Materials Inter

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development of flexible electronics, especially in the biomedical field, which has led to an exploration of flexible substrate photodetectors. [7,8] These devices are far more compact and cost-effective compared to the conventional bulk substrate devices and reduce the expenditure on material as well as fabrication. [9] Still, several issues need to be addressed. [10] Some of the issues are surface roughness, thermal stability, and cleanroom compatibility. Almost all of the flexible substrates utilized (polymers, paper, textile, etc.) have a rough surface which not only affects the charge carrier mobility but also increases the recombination rate. Further, the rise time is also affected which affects the gain of the photodetector. The second is thermal stability, that is, most of the flexible substrates cannot withstand high temperatures, and hence performing high-temperature processes is not possible which restricts limited fabrication methodologies. [11] Last, the flexible substrates are not cleanroom compatible and novel methodologies need to be developed for integrating novel functional nanomaterials onto the flexible substrates. Novel functional materials ranging from 0D to 2D, and hybrids (0D-1D, 0D-2D, and 1D-2D) based on these materials have been explored for this purpose. [12-15] Piezotronics is another means to improve the responsivity upon application of external strain which modulates the depletion region width and increases the electric field and thereby the responsivity. But the issue with piezotronics is that, the application of strain leads to permanent damage in the device, thereby decreasing the reliability of the photodetector. Localized surface plasmon resonance (LSPR) is another means of increasing the absorption, and hence the responsivity and speed, and is a widely researched domain for conventional rigid substrate devices with the decoration of noble nanoparticles (NPs). [16-19] However, reports on the use of metal NPs for high-performance flexible devices using LPSR are few. Moreover, the reports on the comparative performance of different NPs also remain limited. Hence, there is a need to explore Plasmonic enhancement in flexible substrate devices. Transition metal dichalcogenides (TMDs) are a popular class of 2D materials because of their outstanding optical and mechanical properties and tunable bandgap. [20] Of these, MoS 2 is of special interest due to its superior electrical properties, high Even though there are reports on flexible photodetectors, one of the main issues that still needs to be resolved is the lower values of responsivity arising due to the use of non-conventional substrates such as polymers, cellulose paper, etc. There are ways to improve the responsivity, such as piezotronics and surface plasmonic resonance, but studies on utilizing the same for flexible substrates remain limited. Further, the comparative performance of different nanoparticles (NPs) remains unexplored. This report demonstrates the fabrication of flexible visible/near-infrared (NIR) photodetectors by...

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Flexible Photodetector Based on 2D Materials: Processing, Architectures, and Applications

Cited by 148 publications

References 160 publications

Ternary Ta₂PdS₆ Atomic Layers for an Ultrahigh Broadband Photoresponsive Phototransistor

Ternary Ta₂PdS₆ Atomic Layers for an Ultrahigh Broadband Photoresponsive Phototransistor

Bioinspired Design of Graphene‐Based Materials

MoS₂/Paper Decorated with Metal Nanoparticles (Au, Pt, and Pd) Based Plasmonic‐Enhanced Broadband (Visible‐NIR) Flexible Photodetectors

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Flexible Photodetector Based on 2D Materials: Processing, Architectures, and Applications

Cited by 148 publications

References 160 publications

Ternary Ta2PdS6 Atomic Layers for an Ultrahigh Broadband Photoresponsive Phototransistor

Ternary Ta2PdS6 Atomic Layers for an Ultrahigh Broadband Photoresponsive Phototransistor

Bioinspired Design of Graphene‐Based Materials

MoS2/Paper Decorated with Metal Nanoparticles (Au, Pt, and Pd) Based Plasmonic‐Enhanced Broadband (Visible‐NIR) Flexible Photodetectors

Contact Info

Product

Resources

About

Ternary Ta₂PdS₆ Atomic Layers for an Ultrahigh Broadband Photoresponsive Phototransistor

Ternary Ta₂PdS₆ Atomic Layers for an Ultrahigh Broadband Photoresponsive Phototransistor

MoS₂/Paper Decorated with Metal Nanoparticles (Au, Pt, and Pd) Based Plasmonic‐Enhanced Broadband (Visible‐NIR) Flexible Photodetectors