High‐Performance UV–Vis–NIR Photodetectors Based on PEDOT Obtained by Plasma‐Enhanced Chemical Vapor Deposition

physica status solidi (a), Год журнала: 2025, Номер unknown

Опубликована: Янв. 19, 2025

This study presents the fabrication of organic UV–vis–NIR photodetectors based on poly(3,4‐ethylenedioxythiophene) (PEDOT) thin films synthesized via a plasma‐enhanced chemical vapor deposition at 10, 20, and 30 W plasma power. The effects power polymerization, as well optical, structural, morphological, optoelectronic properties, are analyzed using UV–vis, Fourier transform infrared spectroscopy, scanning electron microscope, microscopy–energy‐dispersive X‐ray. films, exhibiting bandgap 3.52–3.59 eV, uniformly coated Si surfaces. Photodiode photodetector performance is evaluated through current–voltage current–transient measurements under varying light intensities wavelengths. PEDOT 10 exhibit superior performance, with maximum responsivity detectivity 0.0975 A −1 1.65 × 1 0 cm Hz 0.5 900 nm, noise‐equivalent 5.38 − 2 / . Maximum external quantum efficiency recorded 23.975% 450 nm. These results emphasize suitability low‐power for applications due to their morphology characteristics.

Язык: Английский

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Wave‐Interference Photonic Crystals and Space Charge Engineering Enable Efficient Broadband Faint Light Detection in Organic/Inorganic Hybrid Photodetectors

Advanced Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 25, 2025

Abstract Noise current, detectivity, quantum efficiency, and response speed are critical metrics in evaluating organic/inorganic photodiodes. Herein, these simultaneously advanced poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/native SiO x /n‐Si hybrid photodetectors, achieving excellent performance detecting broadband faint light. Wave‐interference photonic crystals, comprising periodic microstructured inverse pyramids with nanometer‐scale mesa widths, integrated into the Si absorber to effectively couple incident light for increased absorption, thereby balancing optics conformal contact coverage. The developed photodetector comprises a deep depletion region interfacial layer, enabling diffusion‐mitigated photocarrier transport effective charge collection, suppressing carrier tunneling processes low‐noise. An ultralow reverse dark current density of ≈2.46 × 10 −8 A cm −2 at −0.4 V is realized nanowatt‐level detection. showcases superlative properties among reported PEDOT:PSS–based inorganic heterojunctions, including external efficiency >≈80% from 340 960 nm (internal >≈90% 380 840 nm), detectivity >≈10 12 Jones 300 1140 nm, microsecond speed. This study provides practical insight combining high‐absorption microstructures space engineering development high‐performance photodetectors.

Язык: Английский

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Facile fabrication of self-powered UV-Vis-NIR Photodetector based on Lavandula angustifolia extract

Sensors and Actuators A Physical, Год журнала: 2025, Номер 389, С. 116545 - 116545

Опубликована: Апрель 8, 2025

Язык: Английский

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High‐Performance Self‐Powered PEC Photodetectors Based on 2D BiVO₄/MXene Schottky Junction

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 5, 2024

Abstract As an emerging field, self‐powered photoelectrochemical (PEC) photodetectors have gradually attracted extensive attention thanks to the unique working characteristics of low preparation cost, strong tunability device performance, and environmental friendliness. However, short absorption wavelength range, efficiency visible light utilization, responsivity remain challenges for performance improvements. Here, PEC based on 2D BiVO 4 /MXene Schottky junction structure, which shows excellent with high photocurrent density (≈3.90 mA cm −2 at 0 V SCE under AM 1.5 G, 150 mW ), good (790.2 W −1 447 nm), fast response time ( t r / f = 8/14 ms), long‐term stability (keep 17 000 s 22 cycles) are fabricated. These can be attributed built‐in electric field interface, accelerates transfer photogenerated electrons holes, inhibits interfacial charge recombination. Additionally, MXene nanosheets improve visible‐light‐induced photons valence band . properties show that this work provides a scientific experimental reference further development photodetectors.

Язык: Английский

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Synthesis of BiSbS3@BiSbO4/CNH nanocomposite for wastewater treatment and electrochemical application

Materials Advances, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

A carbon nanohorn (CNH)-modified BiSbS 3 /BiSbO 4 (BiSbS @BiSbO /CNH) nanocomposite was synthesized by hydrothermal method to remove pentachlorophenol (5-CP) via photocatalysis.

Язык: Английский

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Ultrahigh stability photovoltaic performance of M-Mo6+ (M=Fe3+, Co2+, Ni2+) co-doped BiVO4 films

Nano Energy, Год журнала: 2024, Номер 130, С. 110143 - 110143

Опубликована: Авг. 23, 2024

Язык: Английский

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Advanced Organic-Inorganic Hybrid Solar-Blind UV Photodetector With $\beta$-Ga$_{\text{2}}$O$_{\text{3}}$ Film From Thermal Oxidation

IEEE Transactions on Electron Devices, Год журнала: 2024, Номер 71(9), С. 5450 - 5455

Опубликована: Июль 8, 2024

Язык: Английский

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Bifunctional BiVO4/Cu2O photoelectrode for bias-free solar water splitting tandem cells

Solar Energy Materials and Solar Cells, Год журнала: 2024, Номер 282, С. 113386 - 113386

Опубликована: Дек. 24, 2024

Язык: Английский

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Extra-large photocurrent in acceptor-donor co-doped single-layer BiVO4 film

Journal of Power Sources, Год журнала: 2024, Номер 621, С. 235325 - 235325

Опубликована: Сен. 2, 2024

Язык: Английский

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A BiVO₄/Bi₂Mo₂O₉ heterostructure towards oriented charge transfer for efficient photoelectrochemical water oxidation

Sustainable Energy & Fuels, Год журнала: 2024, Номер 8(18), С. 4263 - 4271

Опубликована: Янв. 1, 2024

A BiVO 4 /Bi 2 Mo O 9 heterostructure is prepared by the SILAR method, demonstrating 3.4 times higher photocurrent compared to Bi due oriented photogenerated hole transfer.

Язык: Английский

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