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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References

SHOWING 1-10 OF 60 REFERENCES

Unravelling Photocarrier Dynamics beyond the Space Charge Region for Photoelectrochemical Water Splitting

Semiconductor photoelectrodes for photoelectrochemical (PEC) water splitting require efficient carrier generation, separation, and transport at and beyond the space charge region (SCR) formed at the

Dynamics of photogenerated holes in surface modified α-Fe2O3 photoanodes for solar water splitting

This paper addresses the origin of the decrease in the external electrical bias required for water photoelectrolysis with hematite photoanodes, observed following surface treatments of such

Generalized quantum efficiency analysis for non-ideal solar cells: Case of Cu2ZnSnSe4

Detailed quantum efficiency (QE) analysis of a nanoparticle-based Cu2ZnSnSe4 (CZTSe) solar cell has been conducted to understand photogenerated carrier collection in the device. Specifically,

Understanding the Thickness-Dependent Performance of Organic Bulk Heterojunction Solar Cells: The Influence of Mobility, Lifetime, and Space Charge.

Doping is most likely the dominant influence on the space charge and has an important effect on the thickness dependence of performance on Si-PCPDTBT solar cells.

Analysis of voltage and temperature dependent photocurrent collection in p3ht/pcbm solar cells

Current-voltage analysis of poly (3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester blend organic solar cells at various temperatures has been recorded and analyzed, allowing the intrinsic junction behavior to be uncovered.

Carrier Collection in Thin-Film CdTe Solar Cells: Theory and Experiment

The traditional p-n junction theory separates the total solar cell current into a voltage-dependent dark current term and a constant (voltage-independent) light current term. However, thin film CdTe

Voltage dependent photocurrent collection in CdTe/CdS solar cells

The voltage dependence of the photocurrent JL(V) of CdTe/CdS solar cells has been characterized by separating the forward current from the photocurrent at several illumination intensities. JL(V)

Accurate determination of the charge transfer efficiency of photoanodes for solar water splitting.

Intensity modulated photocurrent spectroscopy (IMPS) is better suited for accurate determination of ηt because it provides direct information on both the total photocurrent and the surface recombination current, but careful analysis of IMPS measurements at different light intensities is required to account for nonlinear effects.

Charge Carrier Separation in Solar Cells

The selective transport of electrons and holes to the two terminals of a solar cell is often attributed to an electric field, although well-known physics states that they are driven by gradients of

GENERALIZED RELATIONSHIP BETWEEN DARK CARRIER DISTRIBUTION AND PHOTOCARRIER COLLECTION IN SOLAR CELLS

A recently identified relationship between the probability of collection of a photogenerated carrier in a solar cell and the dark minority-carrier concentration at the point of generation is
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