Enhanced solar water splitting using plasmon-induced resonance energy transfer and unidirectional charge carrier transport | Zendy

Huaping Jia | Zendy; Yat Lam Wong | Zendy; Bingzhe Wang | Zendy; Guichuan Xing | Zendy; Chi Chung Tsoi | Zendy; Meiling Wang | Zendy; Wendong Zhang | Zendy; Aoqun Jian | Zendy; Shengbo Sang | Zendy; Dangyuan Lei | Zendy; Xuming Zhang | Zendy

Open Access

Enhanced solar water splitting using plasmon-induced resonance energy transfer and unidirectional charge carrier transport

Author(s) -

Huaping Jia,

Yat Lam Wong,

Bingzhe Wang,

Guichuan Xing,

Chi Chung Tsoi,

Meiling Wang,

Wendong Zhang,

Aoqun Jian,

Shengbo Sang,

Dangyuan Lei,

Xuming Zhang

Publication year - 2021

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.440777

Subject(s) - materials science , water splitting , photocathode , surface plasmon resonance , optoelectronics , non blocking i/o , colloidal gold , visible spectrum , solar energy , plasmon , charge carrier , optics , nanoparticle , electron , nanotechnology , photocatalysis , chemistry , physics , ecology , biochemistry , quantum mechanics , catalysis , biology

Solar water splitting by photoelectrochemical (PEC) reactions is promising for hydrogen production. The gold nanoparticles (AuNPs) are often applied to promote the visible response of wideband photocatalysts. However, in a typical TiO 2 /AuNPs structure, the opposite transfer direction of excited electrons between AuNPs and TiO 2 under visible light and UV light severely limits the solar PEC performance. Here we present a unique Pt/TiO 2 /Cu 2 O/NiO/AuNPs photocathode, in which the NiO hole transport layer (HTL) is inserted between AuNPs and Cu 2 O to achieve unidirectional transport of charge carriers and prominent plasmon-induced resonance energy transfer (PIRET) between AuNPs and Cu 2 O. The measured applied bias photon-to-current efficiency and the hydrogen production rate under AM 1.5G illumination can reach 1.5% and 16.4 μmol·cm -2 ·h -1 , respectively. This work is original in using the NiO film as the PIRET spacer and provides a promising photoelectrode for energy-efficient solar water splitting.

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