A Self‐Adaptive Quantum Dots/BaTiO3 Junction Together with Giant Charge Separation‐Driving Force for CO2 Photoreduction via Ferroelectric Polarization Engineering DOI Open Access
Chao Pan,

Zhenhua Zhi,

Yulin Tan

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Quantum dots (QDs) with multiple exciton generation are identified as one of the most competitive candidates for highly efficient solar‐to‐chemical energy conversion, yet not well recognized in excellent CO 2 photoreduction activity due to agglomeration and effect. Here, taking Zn 0.5 Cd S QDs (ZCS QDs) an example, ferroelectric BaTiO 3 (BTO) high‐energy state polarization charges is introduced dynamically tune properties interfacial charges, achieving self‐adaptive electrostatic adsorption intensive photogenerated charge separation. Meanwhile, synergy Z‐scheme ZCS QDs/BTO heterojunction, carrier recombination further inhibited. Such a subtle modulation exhibits exceptional improvement photoreduction, reaching yields that 15.06 times 2.13 those pure BTO QDs, respectively. Notably, there remarkable 8.67 increase yield external polarization. The validity modulating strategy boosting demonstrated using double‐layer capacitance ( C dl ) situ Fourier transform infrared spectroscopy. This study shows great promise materials photoreduction.

Language: Английский

A Self‐Adaptive Quantum Dots/BaTiO3 Junction Together with Giant Charge Separation‐Driving Force for CO2 Photoreduction via Ferroelectric Polarization Engineering DOI Open Access
Chao Pan,

Zhenhua Zhi,

Yulin Tan

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Quantum dots (QDs) with multiple exciton generation are identified as one of the most competitive candidates for highly efficient solar‐to‐chemical energy conversion, yet not well recognized in excellent CO 2 photoreduction activity due to agglomeration and effect. Here, taking Zn 0.5 Cd S QDs (ZCS QDs) an example, ferroelectric BaTiO 3 (BTO) high‐energy state polarization charges is introduced dynamically tune properties interfacial charges, achieving self‐adaptive electrostatic adsorption intensive photogenerated charge separation. Meanwhile, synergy Z‐scheme ZCS QDs/BTO heterojunction, carrier recombination further inhibited. Such a subtle modulation exhibits exceptional improvement photoreduction, reaching yields that 15.06 times 2.13 those pure BTO QDs, respectively. Notably, there remarkable 8.67 increase yield external polarization. The validity modulating strategy boosting demonstrated using double‐layer capacitance ( C dl ) situ Fourier transform infrared spectroscopy. This study shows great promise materials photoreduction.

Language: Английский

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