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
More filters
Journal ArticleDOI
A multifunctional C + epoxy/Ag-paint cathode enables efficient and stable operation of perovskite solar cells in watery environments
TL;DR: In this paper, a hole-transporter-free hybrid perovskite solar cells (PSCs) based on a C + epoxy electrode can serve as both a holeselective extractor and a water-rejecting barrier.
Journal ArticleDOI
Synergistic action of Co-Fe layered double hydroxide electrocatalyst and multiple ions of sea salt for efficient seawater oxidation at near-neutral pH
TL;DR: In this paper, Co-Fe layered double hydroxide (Co-Fe LDH) nanoparticles are synthesized by separate nucleation and aging steps, and investigated as electrocatalysts for seawater oxidation at near neutral pH.
Journal ArticleDOI
Organophosphoric acid-derived CoP quantum dots@S,N-codoped graphite carbon as a trifunctional electrocatalyst for overall water splitting and Zn-air batteries.
TL;DR: This work demonstrates a facile strategy for the preparation of CoP quantum dots (QDs) embedded in S,N-codoped graphite carbon (CoP@SNC) by using organophosphoric acid as both phosphorus and carbon sources and presents its huge potential as a trifunctional electro-catalyst for clean energy systems.
Journal ArticleDOI
Directed synthesis of SnO2@BiVO4/Co-Pi photoanode for highly efficient photoelectrochemical water splitting and urea oxidation
TL;DR: In this article, a one-dimensional SnO2@BiVO4/Co-Pi photoanodes with cobalt-phosphate cocatalyst was constructed for hydrogen production from seawater or wastewater.
Journal ArticleDOI
Dynamic Structure Evolution of Composition Segregated Iridium-Nickel Rhombic Dodecahedra toward Efficient Oxygen Evolution Electrocatalysis.
TL;DR: By tracking the structural evolution of IrNi x catalysts and correlating them with OER activity trajectories, the present work provides a significant understanding for designing efficient OER catalysts with controlled compositional distributions.
References
More filters
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.
Related Papers (5)
Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more