Highly sensitive photodetector based on laser-generated graphene with 3D heterogeneous multiscale porous structures

Movaghgharnezhad, Shirin; Kim, Minsu; Lee, Seung Min; Jeong, Heeyoung; Kim, Hyojin; Kim, Byoung Gak; Kang, Pilgyu

doi:10.1016/j.matdes.2023.112019

Cited by 6 publications

(3 citation statements)

References 63 publications

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“…4(c) and (d)). 36 The presence of fluorine atoms alters the carbon–carbon bonding in the graphene structure, influencing the graphitization process. Fluorine has a higher electronegativity than carbon, which can lead to the formation of more carbon vacancies and defects in the graphene lattice.…”

Section: Fundamentals Of Lig Productionmentioning

confidence: 99%

“…10(f) and (g). 36 Firstly, the optically resonant porous structures of LIG lead to incident photons being trapped within the pores, which are sized to match the wavelength of the incident light. Secondly, the specific surface of LIG facilitates scattering and reflection of light within the interconnected pores, resulting in enhanced optical absorption due to strong interactions between the 3D graphene nanostructures and the incident light.…”

Section: Lig-based Materials In Sensing Applicationsmentioning

confidence: 99%

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Laser-induced graphene: synthesis advances, structural tailoring, enhanced properties, and sensing applications

Movaghgharnezhad,

Kang

2024

J. Mater. Chem. C

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Section: Fundamentals Of Lig Productionmentioning

confidence: 99%

Section: Lig-based Materials In Sensing Applicationsmentioning

confidence: 99%

Laser-induced graphene: synthesis advances, structural tailoring, enhanced properties, and sensing applications

Movaghgharnezhad,

Kang

2024

J. Mater. Chem. C

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“…Graphene exhibits significant potential for innovative photonic devices, such as photodetectors [6]. The linear electron dispersion and gapless band structure of graphene enable it to operate over an extensive wavelength range from visible to far infrared.…”

Section: Introductionmentioning

confidence: 99%

Integrated photodetectors embedded within fiber laser based on hybrid rGO:ZnO nanostructures

Naderi,

Ahmad,

Ismail

2024

Phys. Scr.

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Online power monitoring is helpful in fiber-optic communication applications. This report introduced an innovative all-fiber photodetector based on the polished side of an arc-shaped fiber for the optical signals' in situ measurements. For this purpose, a metal-semiconductor-metal photodetector was designed with multiple interdigitated metal fingers of gold electrodes. A waveguide structure containing polymethyl methacrylate (PMMA), graphene layers, and zinc oxide nanostructures was developed and covered over the arc-shaped fiber. Due to the PMMA's refractive index (n = 1.4905), the evanescent field of propagating mode was drawn out of the core, thus increasing the light interaction with semiconductor nanostructures. To study the influence of graphene flakes on the optoelectrical behavior of zinc oxide nanostructures, a suspension of graphene oxide (GO) and ZnO nanorods was synthesized and transferred onto the PMMA thin film, which was deposited on the polished side of the arc-shaped fiber. The morphological analysis indicates the formation of ZnO nanorods with different orientations, and these nanorods have the potential to enhance incident photon trapping greatly. Upon photon exposure, the guiding photons in the fiber evanescently coupled with the deposited nanostructures, and the photoexcited electron-hole pairs were generated in the semiconductor material. Using applied voltage across the interdigitated electrodes, the generated excitons were separated and increased the photocurrent, which was monitored precisely by source-measure equipment. The optoelectrical properties of fabricated devices showed that incorporating graphene layers can improve the photon detection performance of the fabricated all-fiber photodetectors based on ZnO nanostructures.

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Double crosslinked networks waterborne polyurethane with self-healing, recyclable and antibacterial functions based on dynamic bonds and used for temperature/light sensor

Zeng,

Jin,

Zhou

et al. 2024

Chemical Engineering Journal

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Highly sensitive photodetector based on laser-generated graphene with 3D heterogeneous multiscale porous structures

Cited by 6 publications

References 63 publications

Laser-induced graphene: synthesis advances, structural tailoring, enhanced properties, and sensing applications

Laser-induced graphene: synthesis advances, structural tailoring, enhanced properties, and sensing applications

Integrated photodetectors embedded within fiber laser based on hybrid rGO:ZnO nanostructures

Double crosslinked networks waterborne polyurethane with self-healing, recyclable and antibacterial functions based on dynamic bonds and used for temperature/light sensor

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