Design of photoactive hybrid based intelligent photodetectors for identifying the detected wavelength

Jia, Feixiang; Huang, Feifei; Ouyang, Sheng; Cai, Caoyuan; Xu, Zhihao; Wu, Chuang; Ma, Yang; Wang, Min

doi:10.1039/c6tc03449g

Cited by 10 publications

(5 citation statements)

References 35 publications

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“…It is generally accepted that graphene films grown on Cu foil are continuous. For successful transfer of continuous graphene films, the PMMA carrier for graphene transfer was removed by annealing for 2 h at 400 °C under low pressure with 10 sccm H 2 and 20 sccm Ar, which has been confirmed to enable the crackless transfer of graphene films [31,[40][41][42].…”

Section: Graphene Growth and Transfermentioning

confidence: 99%

Integration of graphene/ZnS nanowire film hybrids based photodetector arrays for high-performance image sensors

Wang

Cai

et al. 2017

2D Mater.

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High-performance photodetector arrays are desired to achieve integrated devices for various technological applications. Film based photodetectors have shown great potential as photodetector arrays because they are compatible with traditional complementary metal oxide semiconductor (CMOS) electronics. Herein, high-mobility graphene/single-crystal ZnS nanowire film hybrids based photodetector arrays have been successfully achieved. With 3 orders of magnitude higher conductance compared with ZnS nanoparticle films, single-crystal ZnS nanowire films are expected to enable a larger portion of photo-generated carriers to move to graphene channel via charge transfer mechanism. As a result, the as-produced graphene/ZnS nanowire film hybrids based devices possess a high photocurrent of 320 µA, a high responsivity of 2.6 × 10 6 A W −1 , a high detectivity of 8.0 × 10 12 Jones, and a low detectable light intensity of 1 µW cm −2 . Moreover, the integrated graphene/ZnS nanowire film hybrids based photodetector arrays are demonstrated as highperformance image sensors with good uniformity.

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Section: Graphene Growth and Transfermentioning

confidence: 99%

Integration of graphene/ZnS nanowire film hybrids based photodetector arrays for high-performance image sensors

Wang

Cai

et al. 2017

2D Mater.

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“…Historically, applications of functional smart materials with controllable shape or volume changes in response to external stimuli have been investigated in several frontier fields, such as sensors, actuators, optoelectronic devices, information storage, and biomedicine [9][10][11][12][13]. These external stimuli include chemical incentives (e.g., changes in concentration, humidity, pH) [14][15][16], mechanical stimuli (e.g., pressure, strain) [17,18], physical stimuli (e.g., light, sound, temperature, color) [19][20][21][22][23], and electromagnetic stimuli (e.g., electric, magnetic, charge injection) [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Smart Triboelectric Nanogenerators Based on Stimulus-Response Materials: From Intelligent Applications to Self-Powered Systems

et al. 2023

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Smart responsive materials can react to external stimuli via a reversible mechanism and can be directly combined with a triboelectric nanogenerator (TENG) to deliver various intelligent applications, such as sensors, actuators, robots, artificial muscles, and controlled drug delivery. Not only that, mechanical energy in the reversible response of innovative materials can be scavenged and transformed into decipherable electrical signals. Because of the high dependence of amplitude and frequency on environmental stimuli, self-powered intelligent systems may be thus built and present an immediate response to stress, electrical current, temperature, magnetic field, or even chemical compounds. This review summarizes the recent research progress of smart TENGs based on stimulus-response materials. After briefly introducing the working principle of TENG, we discuss the implementation of smart materials in TENGs with a classification of several sub-groups: shape-memory alloy, piezoelectric materials, magneto-rheological, and electro-rheological materials. While we focus on their design strategy and function collaboration, applications in robots, clinical treatment, and sensors are described in detail to show the versatility and promising future of smart TNEGs. In the end, challenges and outlooks in this field are highlighted, with an aim to promote the integration of varied advanced intelligent technologies into compact, diverse functional packages in a self-powered mode.

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“…[8] The system with photoelectronic devices offers a more convenient approach than classical techniques such as interference or optical beating methods. [9][10][11][12][13] One representative example is the buried double p-n junctions that can distinguish light wavelengths in visible region. [10,14] The wavelength recognition is based on the shallow and deep photocurrent ratio.…”

Section: Introductionmentioning

confidence: 99%

Vertically Stacked Transparent Organic Photodetectors for Light Intensity‐Independent Wavelength Recognition

Song,

Jiang,

Liu

2023

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Wavelength recognition is one of the important functions of photodetectors. However, wavelength recognition of the reported photodetectors generally depends on light intensity, which limits the practical applications. Here, a light intensity‐independent wavelength recognition scheme based on vertically stacked transparent photodetectors is reported. By analyzing light intensity attenuation behavior in the multiple stacked photodetectors, the wavelength of incident light can be accurately determined. Due to the high transparency of the detectors, the multiple stacked detectors allow incident light to pass through. Meanwhile, since the attenuation coefficients at different wavelengths are attributed to the detector's absorption characteristics, the intensity of incident light and its wavelength can be determined by analyzing the attenuation coefficients measured through each stacked detector. Consistent wavelength values obtained at different light intensities verify the light intensity‐independence of the multistacked detector system.

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Design of photoactive hybrid based intelligent photodetectors for identifying the detected wavelength

Abstract: The similar response time for UV and visible light of the graphene/CdS photodetector is intentionally tuned by inserting ZnS films to produce the graphene/ZnS/CdS photodetector, which can be used as a characteristic parameter to distinguish the detected UV and visible light.

Cited by 10 publications

References 35 publications

Integration of graphene/ZnS nanowire film hybrids based photodetector arrays for high-performance image sensors

Integration of graphene/ZnS nanowire film hybrids based photodetector arrays for high-performance image sensors

Smart Triboelectric Nanogenerators Based on Stimulus-Response Materials: From Intelligent Applications to Self-Powered Systems

Vertically Stacked Transparent Organic Photodetectors for Light Intensity‐Independent Wavelength Recognition

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