Journal ArticleDOI
Water photolysis at 12.3% efficiency via perovskite photovoltaics and Earth-abundant catalysts
Jingshan Luo,Jingshan Luo,Jeong-Hyeok Im,Jeong-Hyeok Im,Matthew T. Mayer,Marcel Schreier,Mohammad Khaja Nazeeruddin,Nam-Gyu Park,S. David Tilley,Hong Jin Fan,Michael Grätzel +10 more
TLDR
It is shown that a pair of perovskite cells connected in series can power the electrochemical breakdown of water into hydrogen and oxygen efficiently, and the combination of the two yields a water-splitting photocurrent density and a solar-to-hydrogen efficiency of 12.3%.Abstract:
Although sunlight-driven water splitting is a promising route to sustainable hydrogen fuel production, widespread implementation is hampered by the expense of the necessary photovoltaic and photoelectrochemical apparatus. Here, we describe a highly efficient and low-cost water-splitting cell combining a state-of-the-art solution-processed perovskite tandem solar cell and a bifunctional Earth-abundant catalyst. The catalyst electrode, a NiFe layered double hydroxide, exhibits high activity toward both the oxygen and hydrogen evolution reactions in alkaline electrolyte. The combination of the two yields a water-splitting photocurrent density of around 10 milliamperes per square centimeter, corresponding to a solar-to-hydrogen efficiency of 12.3%. Currently, the perovskite instability limits the cell lifetime.read more
Citations
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Atomic-layer-deposited ultrathin Co9S8 on carbon nanotubes: an efficient bifunctional electrocatalyst for oxygen evolution/reduction reactions and rechargeable Zn–air batteries
Hao Li,Zheng Guo,Xinwei Wang +2 more
TL;DR: In this paper, an efficient bifunctional OER/ORR catalyst of Co9S8/CNT was synthesized using an advanced technique of atomic layer deposition (ALD) for conformally coating a uniform thin layer of Co 9S8 on a high-surface-area carbon-nanotube (CNT) network scaffold.
Journal ArticleDOI
Carbon‐Based Photocathode Materials for Solar Hydrogen Production
TL;DR: An in-depth evaluation of the state-of-the-art fabrication of photocathodes through scalable, high-troughput, cost-effective methods is presented and the major aspects on the development of light-trapping nanostructured architectures are addressed.
Journal ArticleDOI
Amorphous Ni-B alloy nanoparticle film on Ni foam: rapid alternately dipping deposition for efficient overall water splitting
TL;DR: This letter describes the rapid electroless deposition of amorphous Ni-B nanoparticle film on Ni foam (Ni-B/Ni foam) by alternative dipping of Ni foam into Ni precursor and reducing solutions, and this alternately dipping deposition technique works universally for other conductive substrates.
Journal ArticleDOI
Polymer-based photocathodes with a solution-processable cuprous iodide anode layer and a polyethyleneimine protective coating
Hansel Comas Rojas,Sebastiano Bellani,Sebastiano Bellani,Francesco Fumagalli,Gabriele Tullii,Silvia Leonardi,Matthew T. Mayer,Marcel Schreier,Michael Grätzel,Guglielmo Lanzani,Guglielmo Lanzani,Fabio Di Fonzo,Maria Rosa Antognazza +12 more
TL;DR: In this article, a hybrid organic/inorganic photocathode for hydrogen evolution is presented, which exhibits both a positive onset potential (+0.702 V vs. RHE) and a maximum power point (+ 0.303 V vs RHE).
Journal ArticleDOI
Large-scale hierarchical oxide nanostructures for high-performance electrocatalytic water splitting
Gang Ou,Peixun Fan,Hongjun Zhang,Kai Huang,Cheng Yang,Wen Yu,Hehe Wei,Minlin Zhong,Hui Wu,Yadong Li +9 more
TL;DR: In this article, a fast and general strategy for manufacturing a series of hierarchical nanostructured metal oxides (MO x, M= Ti, Mn, Fe, Co, Ni, Cu, Mo, Ag, Sn, W and NiFe) as electrocatalysts by laser ablation on corresponding metal substrates is reported.
References
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Journal ArticleDOI
Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more
TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
Journal ArticleDOI
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
TL;DR: In this article, the authors describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency.
Journal ArticleDOI
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
TL;DR: Two organolead halide perovskite nanocrystals were found to efficiently sensitize TiO(2) for visible-light conversion in photoelectrochemical cells, which exhibit strong band-gap absorptions as semiconductors.
Journal ArticleDOI
Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites
Michael M. Lee,Joël Teuscher,Tsutomu Miyasaka,Takurou N. Murakami,Takurou N. Murakami,Henry J. Snaith +5 more
TL;DR: A low-cost, solution-processable solar cell, based on a highly crystalline perovskite absorber with intense visible to near-infrared absorptivity, that has a power conversion efficiency of 10.9% in a single-junction device under simulated full sunlight is reported.
Journal ArticleDOI
Sequential deposition as a route to high-performance perovskite-sensitized solar cells
Julian Burschka,Norman Pellet,Norman Pellet,Soo-Jin Moon,Robin Humphry-Baker,Peng Gao,Mohammad Khaja Nazeeruddin,Michael Grätzel +7 more
TL;DR: A sequential deposition method for the formation of the perovskite pigment within the porous metal oxide film that greatly increases the reproducibility of their performance and allows the fabrication of solid-state mesoscopic solar cells with unprecedented power conversion efficiencies and high stability.
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Electrochemical Photolysis of Water at a Semiconductor Electrode
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