Vertically Illuminated, Resonant Cavity Enhanced, Graphene–Silicon Schottky Photodetectors

Casalino, Maurizio; Sassi, Ugo; Goykhman, Ilya; Eiden, Anna; Lidorikis, Elefterios; Milana, Silvia; Fazio, Domenico De; Tomarchio, Flavia; Iodice, Mario; Coppola, Giuseppe; Ferrari, Andrea C.

doi:10.1021/acsnano.7b04792

Cited by 113 publications

(114 citation statements)

References 72 publications

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“…However, these devices have limited rise times on the order of 10 milliseconds, as they require slow carriers for an efficient multiplication process. Alternatively, graphene can be combined with optical structures such as resonant cavities 27,28 and planar optical waveguides 6,19,[29][30][31][32][33] . While the latter is potentially the most promising approach for the integration with Si photonics, the mode overlap with graphene in a waveguide-integrated photodetector is still limited.…”

Section: Introductionmentioning

confidence: 99%

Plasmonically Enhanced Graphene Photodetector Featuring 100 Gbit/s Data Reception, High Responsivity, and Compact Size

et al. 2018

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Graphene has shown great potentials for high-speed photodetection. Yet, the responsivities of graphene-based high-speed photodetectors are commonly limited by the weak effective absorption of atomically thin graphene. Here, we propose and experimentally demonstrate a plasmonically enhanced waveguide-integrated graphene photodetector. The device which combines a 6 m long layer of graphene with field-enhancing nano-sized metallic structures, demonstrates a high external responsivity of 0.5 A/W and a fast photoresponse way beyond 110 GHz. The high efficiency and fast response of the device enables for the first time 100 Gbit/s PAM-2 and 100 Gbit/s PAM-4 data reception with a graphene based device. The results show the potential of graphene as a new technology for highest-speed communication applications.

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Section: Introductionmentioning

confidence: 99%

Plasmonically Enhanced Graphene Photodetector Featuring 100 Gbit/s Data Reception, High Responsivity, and Compact Size

et al. 2018

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“…Data from refs. [28,[185][186][187][188][189][190][191][192][193]. d) Plot of the specific detectivity D* of various photodetectors versus detected wavelength.…”

Section: Photonic and Optoelectronic Applicationsmentioning

confidence: 99%

Emerging Applications of Elemental 2D Materials

et al. 2019

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As elemental main group materials (i.e., silicon and germanium) have dominated the field of modern electronics, their monolayer 2D analogues have shown great promise for next‐generation electronic materials as well as potential game‐changing properties for optoelectronics, energy, and beyond. These atomically thin materials composed of single atomic variants of group III through group VI elements on the periodic table have already demonstrated exciting properties such as near‐room‐temperature topological insulation in bismuthene, extremely high electron mobilities in phosphorene and silicone, and substantial Li‐ion storage capability in borophene. Isolation of these materials within the postgraphene era began with silicene in 2010 and quickly progressed to the experimental identification or theoretical prediction of 15 of the 18 main group elements existing as solids at standard pressure and temperatures. This review first focuses on the significance of defects/functionalization, discussion of different allotropes, and overarching structure–property relationships of 2D main group elemental materials. Then, a complete review of emerging applications in electronics, sensing, spintronics, plasmonics, photodetectors, ultrafast lasers, batteries, supercapacitors, and thermoelectrics is presented by application type, including detailed descriptions of how the material properties may be tailored toward each specific application.

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“…[124] Figure 9c shows the resonant cavity enhanced graphene/Si Schottky photodetector and the resonant structure consists of a λ/2 Si slab layer confined between SLG/Si top and Au bottom mirrors. [124] The response spectrum of the device with and without Au bottom mirror is shown in Figure 9d. A 3-fold external responsivity Rext enhancement as compared with no Au bottom mirror.…”

Section: D Materials On Cavitymentioning

confidence: 99%

Room-temperature infrared photodetectors with hybrid structure based on two-dimensional materials

et al. 2019

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Two-dimensional (2D) materials, such as graphene, transition metal dichalcogenides (TMDs), black phosphorus (BP) and related derivatives, have attracted great attention due to their advantages of flexibility, strong light-matter interaction, broadband absorption and high carrier mobility, and have become a powerful contender for next-generation infrared photodetectors. However, since the thickness of twodimensional materials is on the order of nanometers, the absorption of two-dimensional materials is very weak, which limits the detection performance of 2D materials-based infrared photodetector. In order to solve this problem, scientific researchers have tried to use optimized device structures to combine with two-dimensional materials for improving the performance of infrared photodetector. In this review, we review the progress of room temperature infrared photodetectors with hybrid structure based on 2D materials in recent years, focusing mainly on 2D-nD (n = 0, 1, 2) heterostructures, the integration between 2D materials and on-chip or plasmonic structure. Finally, we summarize the current challenges and point out the future development direction.

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Vertically Illuminated, Resonant Cavity Enhanced, Graphene–Silicon Schottky Photodetectors

Cited by 113 publications

References 72 publications

Plasmonically Enhanced Graphene Photodetector Featuring 100 Gbit/s Data Reception, High Responsivity, and Compact Size

Plasmonically Enhanced Graphene Photodetector Featuring 100 Gbit/s Data Reception, High Responsivity, and Compact Size

Emerging Applications of Elemental 2D Materials

Room-temperature infrared photodetectors with hybrid structure based on two-dimensional materials

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