High‐Performance Self‐Powered PEC Photodetectors Based on 2D BiVO4/MXene Schottky Junction DOI
Siqin Zhou, Chenxiao Jiang,

Jinlu Han

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 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.

Language: Английский

Ultraviolet–Visible Photodetector Based on a Cs2TeI6 Thin Film DOI
Qiang Huang, Jiang Zhu, Fei Qi

et al.

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

Te-based halide perovskites as alternatives to Pb-based have received increasing attention due the advantages of nontoxicity and high stability. However, investigation utilizing realize a broadband photoresponse photodetector (PD) is still rare. Herein, Cs2TeI6 film developed used for achieving high-performance PD. Optoelectronic performance analysis shows that PD sensitive light in ultraviolet (265 nm) visible (570 region. The responsivity, specific detectivity, external quantum efficiency reached 48 mA/W, 4.8 × 1012 jones, 13% at 420 nm 12 1.2 5.64% 265 nm, respectively, under 4 V bias weak intensity. response time 9 ms/125 ms nm. Moreover, can operate consistently 500 cycles less loss after sixmonths atmospheric environment. This work verifies has good potential ultraviolet–visible detection.

Language: Английский

Citations

0
Real-Time Nanoparticle Dispersion Monitoring via CuO Nanowire Photodetectors: An Effective Approach for In Situ Nanomaterial Synthesis Control DOI
Dong Hwan Kim,

Dong Hwa Kwak,

Seokyoung Ahn

et al.

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Language: Английский

Citations

0
High‐Performance Self‐Powered PEC Photodetectors Based on 2D BiVO4/MXene Schottky Junction DOI
Siqin Zhou, Chenxiao Jiang,

Jinlu Han

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 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.

Language: Английский

Citations

3