Journal ArticleDOI
Infrared Photodetectors Based on Reduced Graphene Oxide and Graphene Nanoribbons
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TLDR
The use of reduced graphene oxide (RGO) and graphene nanoribbons (GNRs) as infrared photodetectors is explored, based on recent results dealing with solar cells, light-emitting devices, photodentectors, and ultrafast lasers.Abstract:
The use of reduced graphene oxide (RGO) and graphene nanoribbons (GNRs) as infrared photodetectors is explored, based on recent results dealing with solar cells, light-emitting devices, photodetectors, and ultrafast lasers. IR detection is demonstrated by both RGO and GNRs (see image) in terms of the time-resolved photocurrent and photoresponse. The responsivity of the detectors and their functioning are presented.read more
Citations
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Graphene-MoS2 hybrid structures for multifunctional photoresponsive memory devices
Kallol Roy,Medini Padmanabhan,Srijit Goswami,Srijit Goswami,T. Phanindra Sai,Gopalakrishnan Ramalingam,Gopalakrishnan Ramalingam,Srinivasan Raghavan,Arindam Ghosh +8 more
TL;DR: Graphene-on-MoS2 binary heterostructures display remarkable dual optoelectronic functionality, including highly sensitive photodetection and gate-tunable persistent photoconductivity, and may lead to new graphene-based optoeLECTronic devices that are naturally scalable for large-area applications at room temperature.
Journal ArticleDOI
Synthesis of Few-Layer GaSe Nanosheets for High Performance Photodetectors
TL;DR: A 2D nanosheets of ultrathin GaSe has been prepared by using mechanical cleavage and solvent exfoliation method and shows a fast response, high responsivity and high external quantum efficiency, indicating that the two-dimensional nanostructure of GaSe is a new promising material for high performance photodetectors.
Journal ArticleDOI
High-Performance Flexible Broadband Photodetector Based on Organolead Halide Perovskite
TL;DR: In this article, the first organolead halide perovskite based broadband photodetector is demonstrated, with CH3NH3PbI3 film deposited on flexible ITO coated substrate.
Journal ArticleDOI
Progress, Challenges, and Opportunities for 2D Material Based Photodetectors
TL;DR: A review of photodetectors based on 2D materials covering the detection spectrum from ultraviolet to infrared is presented in this paper, where a brief insight into the detection mechanisms of 2D material photodeterceptors as well as introducing the figure-of-merits which are key factors for a reasonable comparison between different photoderectors is provided.
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Infrared Photodetectors Based on CVD-Grown Graphene and PbS Quantum Dots with Ultrahigh Responsivity
TL;DR: Infrared photodetectors based on single-layer CVD-grown graphene and PbS quantum dots, which are fabricated by solution processing, show ultrahigh responsivities of up to 10(7) A/W under infrared light illumination.
References
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Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
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The rise of graphene
TL;DR: Owing to its unusual electronic spectrum, graphene has led to the emergence of a new paradigm of 'relativistic' condensed-matter physics, where quantum relativistic phenomena can now be mimicked and tested in table-top experiments.
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Two-dimensional gas of massless Dirac fermions in graphene
Kostya S. Novoselov,A. K. Geim,Sergey V. Morozov,Da Jiang,Mikhail I. Katsnelson,Irina V. Grigorieva,S. V. Dubonos,A. A. Firsov +7 more
TL;DR: This study reports an experimental study of a condensed-matter system (graphene, a single atomic layer of carbon) in which electron transport is essentially governed by Dirac's (relativistic) equation and reveals a variety of unusual phenomena that are characteristic of two-dimensional Dirac fermions.
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Experimental observation of the quantum Hall effect and Berry's phase in graphene
TL;DR: In this paper, an experimental investigation of magneto-transport in a high-mobility single layer of Graphene is presented, where an unusual half-integer quantum Hall effect for both electron and hole carriers in graphene is observed.
Journal Article
Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
TL;DR: An experimental investigation of magneto-transport in a high-mobility single layer of graphene observes an unusual half-integer quantum Hall effect for both electron and hole carriers in graphene.