The Spatial Collection Efficiency of Charge Carriers in Photovoltaic and Photoelectrochemical Cells

@article{Segev2018TheSC,
  title={The Spatial Collection Efficiency of Charge Carriers in Photovoltaic and Photoelectrochemical Cells},
  author={Gideon Segev and Hen Dotan and David S. Ellis and Yifat Piekner and Dino Klotz and Jeffrey W. Beeman and Jason K. Cooper and Daniel A. Grave and Ian D. Sharp and Avner Rothschild},
  journal={Joule},
  year={2018},
  volume={2},
  pages={210-224}
}
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26 Citations

26 Citations

Modeling Enhanced Performances by Optical Nanostructures in Water-Splitting Photoelectrodes

: Material nanostructuring and optical phenomena on a nanoscale such as plasmonic e ff ects and light scattering have been widely studied for improving the solar-to-hydrogen e ffi ciency of…

Spatial Collection in Colloidal Quantum Dot Solar Cells

In thin‐film photovoltaic (PV) research and development, it is of interest to determine where the chief losses are occurring within the active layer. Herein, a method is developed and presented by…

Quantification of the loss mechanisms in emerging water splitting photoanodes through empirical extraction of the spatial charge collection efficiency

The operando quantification of surface and bulk losses is key to developing strategies for optimizing photoelectrodes and realizing high efficiency photoelectrochemical solar energy conversion…

Non-unity photogeneration yield of mobile charge carriers in transition metal-oxides

Photoelectrochemical water splitting as means of producing clean hydrogen fuel has attracted the attention of researchers for nearly 50 years. Since photoelectrochemical cells must operate in a…

Extraction of mobile charge carrier photogeneration yield spectrum of ultrathin-film metal oxide photoanodes for solar water splitting

Although the photogeneration yield spectrum is a key property for photoabsorbers in photovoltaic and photoelectrochemical cells, its characterization remains challenging and an empirical method to extract this parameter through quantum efficiency measurements of ultrathin films is proposed.

Irradiation Direction‐Dependent Surface Charge Recombination in Hematite Thin‐Film Oxygen Evolution Photoanodes

For photoelectrochemical (PEC) devices, light irradiation direction changes photogenerated charge distribution and thus will affect the charge collection efficiency of the photoelectrodes. Herein, we…

A Chemically Orthogonal Hole Transport Layer for Efficient Colloidal Quantum Dot Solar Cells

The key materials interface dominating the subpar performance of prior CQD PV devices is demonstrated and a chemically orthogonal HTL that consists of malonic-acid-crosslinked CQDs is developed that enables a 1.4× increase in charge carrier diffusion length in the active layer.

Hybrid photoelectrochemical and photovoltaic cells for simultaneous production of chemical fuels and electrical power

The concept that photogenerated charge carriers can be controllably directed to produce electricity and chemical fuel provides an opportunity to significantly increase the energy return on energy invested in solar fuels systems and can be adapted to a variety of architectures assembled from different materials.

Retarded Charge–Carrier Recombination in Photoelectrochemical Cells from Plasmon‐Induced Resonance Energy Transfer

N‐type metal oxides such as hematite (α‐Fe2O3) and bismuth vanadate (BiVO4) are promising candidate materials for efficient photoelectrochemical water splitting; however, their short minority carrier…

In situ characterizations of photoelectrochemical cells for solar fuels and chemicals

Environmental concerns deriving from fossil fuel dependency are driving an energy transition based on sustainable processes to make fuels and chemicals. Solar hydrogen is the pillar of this new green…

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