Ultrasensitive Phototransistor Based on K-Enriched MoO<sub>3</sub> Single Nanowires

Lu, Jinren; Sun, Cheng; Zheng, Minrui; Wang, Yinghui; Mathews, Nripan; Kan, J.A. van; Mhaisalkar, Subodh; Sow, Chorng Haur

doi:10.1021/jp305231j

Cited by 33 publications

(21 citation statements)

References 34 publications

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“…This R res value is much higher than that of graphene ($1 mA W À1 ), 61 MoS 2 (7.5 mA W À1 ), 22 and organic (PPEs, 36 mA W À1 ) 17 phototransistors. It is even higher than those of ZnO nanowires (1.29 Â 10 7 mA W À1 ) 18 and recently reported K x MoO 3 nanowire phototransistors (1.75 Â 10 7 mA W À1 ) 62 and comparable with vertically aligned Si nanowire arrays ($10 8 mA W À1 ). 63 The high responsivity of the nanowire device enables a large on/off ratio, indicating the potential applications of the nanowire phototransistor in optoelectronic devices such as optoisolators, retrosensors, 16,64 and photoampliers.…”

Section: Resultsmentioning

confidence: 77%

Highly sensitive and multispectral responsive phototransistor using tungsten-doped VO₂ nanowires

Liu

Deng

et al. 2014

Nanoscale

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In this work, we report a novel and feasible strategy for the practical applications of one-dimensional ultrasensitive phototransistors made of tungsten-doped VO2 single nanowires. The photoconductive response of the single nanowire device was investigated under different visible light excitations (405 nm, 532 nm, and 660 nm). The phototransistor device exhibited ultrafast photoresponse, high responsivity, broad multispectral response, and rapid saturation characteristic curves. These promising results help to promote the applications of this material in nano-scale optoelectronic devices such as efficient multispectral phototransistors and optical switches.

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Section: Resultsmentioning

confidence: 77%

Highly sensitive and multispectral responsive phototransistor using tungsten-doped VO₂ nanowires

Liu

Deng

et al. 2014

Nanoscale

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“…A reasonable photosensitivity as compared to a lot of nanomaterial-based devices was reported in which I light /I dark > 1 × 10 2 under a weak light illumination of 0.018 mW cm −2 . [121][122][123] Moreover, device stability was demonstrated at temperatures up to 100 °C. A very low value of dark current (≈1 × 10 −10 A) at 30 V was shown for this PD and, after illumination with a light power density of 6.59 mW cm −2 , the photocurrent increased by more than 10 000 times compared to that in the dark, confirming that the device works in photoconductor mode.…”

Section: Materials Design: Morphology Effectmentioning

confidence: 99%

A Review on Organic–Inorganic Halide Perovskite Photodetectors: Device Engineering and Fundamental Physics

2017

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The last eight years (2009-2017) have seen an explosive growth of interest in organic-inorganic halide perovskites in the research communities of photovoltaics and light-emitting diodes. In addition, recent advancements have demonstrated that this type of perovskite has a great potential in the technology of light-signal detection with a comparable performance to commercially available crystalline Si and III-V photodetectors. The contemporary growth of state-of-the-art multifunctional perovskites in the field of light-signal detection has benefited from its outstanding intrinsic optoelectronic properties, including photoinduced polarization, high drift mobilities, and effective charge collection, which are excellent for this application. Photoactive perovskite semiconductors combine effective light absorption, allowing detection of a wide range of electromagnetic waves from ultraviolet and visible, to the near-infrared region, with low-cost solution processability and good photon yield. This class of semiconductor might empower breakthrough photodetector technology in the field of imaging, optical communications, and biomedical sensing. Therefore, here, the focus is specifically on the critical understanding of materials synthesis, design, and engineering for the next-stage development of perovskite photodetectors and highlighting the current challenges in the field, which need to be further studied in the future.

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“…The high on/off ratio of ≈10 4 with an excellent responsivity of 1.75 × 10 4 A W -1 of the fabricated device confirms the application of intercalated α-MoO 3 as promising phototransistors and light sensors. [159]…”

Section: Photodetectorsmentioning

confidence: 99%

Molybdenum Oxides – From Fundamentals to Functionality

et al. 2017

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The properties and applications of molybdenum oxides are reviewed in depth. Molybdenum is found in various oxide stoichiometries, which have been employed for different high-value research and commercial applications. The great chemical and physical characteristics of molybdenum oxides make them versatile and highly tunable for incorporation in optical, electronic, catalytic, bio, and energy systems. Variations in the oxidation states allow manipulation of the crystal structure, morphology, oxygen vacancies, and dopants, to control and engineer electronic states. Despite this overwhelming functionality and potential, a definitive resource on molybdenum oxide is still unavailable. The aim here is to provide such a resource, while presenting an insightful outlook into future prospective applications for molybdenum oxides.

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Ultrasensitive Phototransistor Based on K-Enriched MoO₃ Single Nanowires

Cited by 33 publications

References 34 publications

Highly sensitive and multispectral responsive phototransistor using tungsten-doped VO₂ nanowires

Highly sensitive and multispectral responsive phototransistor using tungsten-doped VO₂ nanowires

A Review on Organic–Inorganic Halide Perovskite Photodetectors: Device Engineering and Fundamental Physics

Molybdenum Oxides – From Fundamentals to Functionality

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Ultrasensitive Phototransistor Based on K-Enriched MoO3 Single Nanowires

Cited by 33 publications

References 34 publications

Highly sensitive and multispectral responsive phototransistor using tungsten-doped VO2 nanowires

Highly sensitive and multispectral responsive phototransistor using tungsten-doped VO2 nanowires

A Review on Organic–Inorganic Halide Perovskite Photodetectors: Device Engineering and Fundamental Physics

Molybdenum Oxides – From Fundamentals to Functionality

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Product

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About

Ultrasensitive Phototransistor Based on K-Enriched MoO₃ Single Nanowires

Highly sensitive and multispectral responsive phototransistor using tungsten-doped VO₂ nanowires

Highly sensitive and multispectral responsive phototransistor using tungsten-doped VO₂ nanowires