Enhanced photocurrent generation of bio-inspired graphene/ZnO composite films

Yin, Shengyan; Men, Xiaoju; Sun, Hang; She, Ping; Zhang, Wei; Wu, Changfeng; Qin, Weiping; Chen, Xiao

doi:10.1039/c5ta02297e

Cited by 39 publications

(20 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…39 Similarly, efficient charge transfer and suppressed electron–hole recombination was reported for a Cu 2 O/rGO system. 40 Liquid phase exfoliated (LPE) graphene nanoplatelets were combined with TiO 2 nanoparticles, and improved photocatalytic efficiency was found for both CH 3 CHO oxidation and CO 2 reduction.…”

Section: Introductionmentioning

confidence: 63%

Enhanced Photoelectrochemical Performance of Cuprous Oxide/Graphene Nanohybrids

et al. 2017

View full text Add to dashboard Cite

Combination of an oxide semiconductor with a highly conductive nanocarbon framework (such as graphene or carbon nanotubes) is an attractive avenue to assemble efficient photoelectrodes for solar fuel generation. To fully exploit the possible synergies of the hybrid formation, however, precise knowledge of these systems is required to allow rational design and morphological engineering. In this paper, we present the controlled electrochemical deposition of nanocrystalline p-Cu2O on the surface of different graphene substrates. The developed synthetic protocol allowed tuning of the morphological features of the hybrids as deduced from electron microscopy. (Photo)electrochemical measurements (including photovoltammetry, electrochemical impedance spectroscopy, photocurrent transient analysis) demonstrated better performance for the 2D graphene containing photoelectrodes, compared to the bare Cu2O films, the enhanced performance being rooted in suppressed charge carrier recombination. To elucidate the precise role of graphene, comparative studies were performed with carbon nanotube (CNT) films and 3D graphene foams. These studies revealed, after allowing for the effect of increased surface area, that the 3D graphene substrate outperformed the other two nanocarbons. Its interconnected structure facilitated effective charge separation and transport, leading to better harvesting of the generated photoelectrons. These hybrid assemblies are shown to be potentially attractive candidates in photoelectrochemical energy conversion schemes, namely CO2 reduction.

show abstract

Section: Introductionmentioning

confidence: 63%

Enhanced Photoelectrochemical Performance of Cuprous Oxide/Graphene Nanohybrids

et al. 2017

View full text Add to dashboard Cite

show abstract

“…[62] In the PECf ield, the reflectance spectroscopy is av ery useful characterization method. [62] In the PECf ield, the reflectance spectroscopy is av ery useful characterization method.…”

Section: Light Reflectance Efficiencymentioning

confidence: 99%

General Characterization Methods for Photoelectrochemical Cells for Solar Water Splitting

Shi

Cai

et al. 2015

ChemSusChem

View full text Add to dashboard Cite

Photoelectrochemical (PEC) water splitting is a very promising technology that converts water into clean hydrogen fuel and oxygen by using solar light. However, the characterization methods for PEC cells are diverse and a systematic introduction to characterization methods for PEC cells has rarely been attempted. Unlike most other review articles that focus mainly on the material used for the working electrodes of PEC cells, this review introduces general characterization methods for PEC cells, including their basic configurations and methods for characterizing their performance under various conditions, regardless of the materials used. Detailed experimental operation procedures with theoretical information are provided for each characterization method. The PEC research area is rapidly expanding and more researchers are beginning to devote themselves to related work. Therefore, the content of this Minireview can provide entry-level knowledge to beginners in the area of PEC, which might accelerate progress in this area.

show abstract

“…g) Photocurrent versus time under chopped irradiation of rGO/DODA/ZnO honeycomb film (black), rGO/DODA/ZnO smooth film (red), rGO/DODA honeycomb film (blue), and rGO/DODA smooth film (green) at a bias voltage of 0 V (vs Ag/AgCl). Reproduced with permission . Copyright 2015, American Chemical Society.…”

Section: Biostructure‐inspired Plasmonic Photocatalystmentioning

confidence: 99%

Bio‐Inspired Plasmonic Photocatalysts

2018

Self Cite

View full text Add to dashboard Cite

The conversion of solar energy to sustainable energy sources is a significant field of study for the relief of the world's energy problems, and among the various strategies developed, semiconductor photocatalysts have received significant attention as a promising candidate due to their attractive efficiency, mild reaction conditions, and low cost. The enhancement of such photocatalysts with plasmonic materials, by virtue of the Schottky junction and localized surface plasma resonance phenomenon, could facilitate the rapid progress in enhancement of photocatalytic efficiency under visible light irradiation. To further improve photocatalytic efficiency, scientists look to nature for inspiration, culminating in the evolution of complex hierarchical structures in order to fully utilize the potential of solar energy. In the past decade, there has been significant progress in the development of bio‐inspired plasmonic photocatalysts, such as antireflective surfaces, 3D photonic structures, and branched structures. This review describes the state‐of‐the‐art bio‐inspired light manipulation approaches, as well as future challenges in solar energy harvesting by plasmonic photocatalysts.

show abstract

Enhanced photocurrent generation of bio-inspired graphene/ZnO composite films

Abstract: A bio-inspired honeycomb graphene/ZnO composite photoelectrode is developed, which shows a decreased light reflection and an increased photocurrent.

Cited by 39 publications

References 46 publications

Enhanced Photoelectrochemical Performance of Cuprous Oxide/Graphene Nanohybrids

Enhanced Photoelectrochemical Performance of Cuprous Oxide/Graphene Nanohybrids

General Characterization Methods for Photoelectrochemical Cells for Solar Water Splitting

Bio‐Inspired Plasmonic Photocatalysts

Contact Info

Product

Resources

About