Surface Plasmon‐Enhanced Photodetection in Few Layer MoS<sub>2</sub> Phototransistors with Au Nanostructure Arrays

Miao, Jinshui; Hu, Weida; Jing, Youliang; Luo, Wenjin; Liao, Lei; Pan, Anlian; Wu, Shiwei; Cheng, Jingxin; Chen, Xiaoshuang; Lü, Wei

doi:10.1002/smll.201403422

Cited by 373 publications

(253 citation statements)

References 46 publications

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“…Several strategies have been proposed and preliminary demonstrations have been reported including use of plasmonic metal particles, shells or resonators to enhance photocurrent and photoluminescence. [27][28][29][30][31][32][33][34][35][36][37] More sophisticated and lossless dielectric optical cavities such as photonic crystals and ring resonators have also been used to enhance absorption, mainly aimed at emission applications in monolayer samples. [38][39][40][41] For large area photovoltaic applications, light trapping strategies that involve little or no micro-or nanofabrication and patterning are desirable to improve performance while minimizing cost.…”

Section: Absorption and Photonic Designmentioning

confidence: 99%

Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook

et al. 2017

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Two-dimensional (2D) semiconductors provide a unique opportunity for optoelectronics due to their layered atomic structure, electronic and optical properties. To date, a majority of the application-oriented research in this field has been focused on fieldeffect electronics as well as photodetectors and light emitting diodes. Here we present a perspective on the use of 2D semiconductors for photovoltaic applications. We discuss photonic device designs that enable light trapping in nanometer-thickness absorber layers, and we also outline schemes for efficient carrier transport and collection. We further provide theoretical estimates of efficiency indicating that 2D semiconductors can indeed be competitive with and complementary to conventional photovoltaics, based on favorable energy bandgap, absorption, external radiative efficiency, along with recent experimental demonstrations. Photonic and electronic design of 2D semiconductor photovoltaics represents a new direction for realizing ultrathin, efficient solar cells with applications ranging from conventional power generation to portable and ultralight solar power. *Corresponding author: haa@caltech.eduKeywords: Transition metal dichalcogenides, heterostructures, light-trapping, ShockleyQuessier, nanophotonics, 2D materials Since the isolation of graphene as the first free-standing two-dimensional (2D) material (from graphite), the class of layered 2D materials with weak van der Waals inter-planar bonding has expanded significantly. Two-dimensional materials now span a great diversity of atomic structure and physical properties. Prominent among these are the semiconductor chalcogenides of transition and basic metals (Mo, W, Ga, In, Sn, Re etc.) 1-3 , as well as layered allotropes of other p-block elements of the periodic table such as P, As, Te etc. 4 The availability of atomic layer thickness samples of stable, passivated, and dangling bond free semiconductor materials ushers in a new phase in solid state device design and optoelectronics.1, 5-8 A notable feature of the metal chalcogenide 2D semiconductors is the transition from an indirect bandgap in bulk to direct bandgap (Eg) in monolayer form, resulting in a high photoluminescence quantum yield (PL QY) [9][10] in turn corresponding to high radiative efficiency. This combined with the bandgap ranging from visible to near infrared part of the spectrum (1.1 to 2.0 eV) 1 makes the chalcogenides

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Section: Absorption and Photonic Designmentioning

confidence: 99%

Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook

et al. 2017

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“…First, the introduction of photonic structures into 2D materials can significantly enhance their photoresponsivity [93][94][95][96][97][98][99][100][101][102][103][104][105][106]. On the other hand, by electrostatically tuning the Fermi level of 2D materials, with which photonic structures like waveguides, resonators and cavities are integrated, their modulation performance can be improved [107][108][109][110][111][112][113].…”

Section: Photonic Structure-integrated 2d Materials Optoelectronicsmentioning

confidence: 99%

“…Similar phenomena are observed for 2D material base optoelectronics. A large enhancement of photocurrent response can be obtained by coupling few-layer MoS 2 with Au plasmonic nanostructure arrays [99]. Depositing 4 nm thick Au nanoparticles sparsely onto few-layer MoS 2 phototransistors leads to a two-fold increase in the photocurrent response.…”

Section: Photodetectormentioning

confidence: 99%

Photonic Structure-Integrated Two-Dimensional Material Optoelectronics

Wang

2016

Electronics

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Abstract:The rapid development and unique properties of two-dimensional (2D) materials, such as graphene, phosphorene and transition metal dichalcogenides enable them to become intriguing candidates for future optoelectronic applications. To maximize the potential of 2D material-based optoelectronics, various photonic structures are integrated to form photonic structure/2D material hybrid systems so that the device performance can be manipulated in controllable ways. Here, we first introduce the photocurrent-generation mechanisms of 2D material-based optoelectronics and their performance. We then offer an overview and evaluation of the state-of-the-art of hybrid systems, where 2D material optoelectronics are integrated with photonic structures, especially plasmonic nanostructures, photonic waveguides and crystals. By combining with those photonic structures, the performance of 2D material optoelectronics can be further enhanced, and on the other side, a high-performance modulator can be achieved by electrostatically tuning 2D materials. Finally, 2D material-based photodetector can also become an efficient probe to learn the light-matter interactions of photonic structures. Those hybrid systems combine the advantages of 2D materials and photonic structures, providing further capacity for high-performance optoelectronics.

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“…Moreover, Hu's group observed that a large enhancement of photocurrent response is obtained by decorating multi-layer MoS 2 with plasmonic gold nanoparticles array. Due to LSPR, the photocurrent of MoS 2 phototransistors exhibited a threefold enhancement after depositing periodic Au nanoparticles arrays [19].…”

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confidence: 99%

Plasmonic hollow gold nanoparticles induced high-performance Bi2S3 nanoribbon photodetector

Liang

Zhang

et al. 2017

Nanophotonics

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Surface Plasmon‐Enhanced Photodetection in Few Layer MoS₂ Phototransistors with Au Nanostructure Arrays

Cited by 373 publications

References 46 publications

Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook

Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook

Photonic Structure-Integrated Two-Dimensional Material Optoelectronics

Plasmonic hollow gold nanoparticles induced high-performance Bi2S3 nanoribbon photodetector

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Surface Plasmon‐Enhanced Photodetection in Few Layer MoS2 Phototransistors with Au Nanostructure Arrays

Cited by 373 publications

References 46 publications

Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook

Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook

Photonic Structure-Integrated Two-Dimensional Material Optoelectronics

Plasmonic hollow gold nanoparticles induced high-performance Bi2S3 nanoribbon photodetector

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Product

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Surface Plasmon‐Enhanced Photodetection in Few Layer MoS₂ Phototransistors with Au Nanostructure Arrays