On the Use of Rau's Reciprocity to Deduce External Radiative Efficiency in Solar Cells

@article{Wang2013OnTU,
  title={On the Use of Rau's Reciprocity to Deduce External Radiative Efficiency in Solar Cells},
  author={Xufeng Wang and Mark S. Lundstrom},
  journal={IEEE Journal of Photovoltaics},
  year={2013},
  volume={3},
  pages={1348-1353}
}
Rau's reciprocity relation has been used to deduce the external radiative efficiency of a wide variety of solar cells using just standard solar cell measurements, but it is based on a number of assumptions, some of which may not be valid for typical thin-film solar cells. In this paper, we use rigorous optical simulations, coupled with carrier transport simulations, to examine some common thin-film solar cells. The results provide guidance on when the Rau relation can be used, why it can fail… Expand

Figures and Tables from this paper

Incorporating photon recycling into the analytical drift-diffusion model of high efficiency solar cells
The analytical drift-diffusion formalism is able to accurately simulate a wide range of solar cell architectures and was recently extended to include those with back surface reflectors. However, asExpand
Analytical model (CELIC) for describing organic and inorganic solar cells based on drift-diffusion calculations
This work shows an analytical semiconductor diode model suitable to describe photovoltaic cells for a large variety of physical parameters, such as mobility of charge carriers and illuminationExpand
Photon management modeling and beyond for photovoltaics
TLDR
It is shown that combining detailed models for full-wave optics with one or more other physics models represents an emerging field of research and offers the promise of higher light-trapping performance for a broad range of thin-film photovoltaic systems. Expand
Role of photon recycling in perovskite solar cells
Nearly perfect photon recycling helped GaAs cells achieve the highest efficiency ever reported for a solar cell. Recent reports of photon recycling in perovskite solar cells suggest that, onceExpand
Reciprocity between Charge Injection and Extraction and Its Influence on the Interpretation of Electroluminescence Spectra in Organic Solar Cells
Thomas Kirchartz, Jenny Nelson, and Uwe Rau IEK5-Photovoltaik, Forschungszentrum Julich, 52425 Julich, Germany Faculty of Engineering and CENIDE, University of Duisburg-Essen, Carl-Benz-Strasse 199,Expand
Performance-limiting factors for GaAs-based single nanowire photovoltaics.
TLDR
Overall, the ultimate efficiency of the GaAs nanowire solar cell with radial and vertical junction is not expected to exceed that of the thin-film design, with both staying below the Shockley-Queisser limit. Expand
Performance-limiting factors for GaAs-based single nanowire photovoltaics.
TLDR
Overall, the ultimate efficiency of the GaAs nanowire solar cell with radial and vertical junction is not expected to exceed that of the thin-film design, with both staying below the Shockley-Queisser limit. Expand
Radiative efficiency of lead iodide based perovskite solar cells
TLDR
The reciprocity relation between electroluminescence and photovoltaic quantum efficiency is evaluated and it is concluded that the emission from the perovskite devices is dominated by a sharp band-to-band transition that has a radiative efficiency much higher than that of an average OPV device. Expand
Comparing Front- and Rear-Junction GaInP Photovoltaic Devices Through Detailed Numerical and Analytical Modeling
TLDR
This paper aims to understand the advantages and disadvantages of rear-junction designs from both numerical and analytic perspectives, and to generically identify the parameters where the optimal configuration flips. Expand
Correlation of Electroluminescence With Open-Circuit Voltage From Thin-Film CdTe Solar Cells
Electroluminescence (EL) measurements of several CdTe solar cells, a GaAs solar cell, and an AlGaAs LED were performed. The mean integrated EL intensity, normalized to exposure time andExpand
...
1
2
...

References

SHOWING 1-10 OF 34 REFERENCES
Limiting efficiency of silicon solar cells
The detailed balance method for calculating the radiative recombination limit to the performance of solar cells has been extended to include free carrier absorption and Auger recombination inExpand
Design of GaAs Solar Cells Operating Close to the Shockley–Queisser Limit
With recent advances in device design, single-junction GaAs solar cells are approaching their theoretical efficiency limits. Accurate numerical simulation may offer insights that can help close theExpand
Numerical modeling of the influence of photon recycling on lifetime measurements
Accurate determination of minority carrier lifetimes in solar cell devices is important for developing numerical models and making performance predictions. One popular technique is the time-resolvedExpand
A reciprocity theorem for charge collection
It is shown that the current collected by a p‐n junction in presence of a unit point generation of carriers at a point P is the same (apart from the dimensions) as the excess minority‐carrier densityExpand
Reciprocity relation between photovoltaic quantum efficiency and electroluminescent emission of solar cells
A rigorous proof for a reciprocity theorem that relates the spectral and angular dependences of the electroluminescence of solar cells and light emitting diodes to the spectral and angular quantumExpand
Superposition and Reciprocity in the Electroluminescence and Photoluminescence of Solar Cells
  • U. Rau
  • Physics
  • IEEE Journal of Photovoltaics
  • 2012
The reciprocity relation between electroluminescent emission and photovoltaic quantum efficiency of solar cells and light-emitting diodes is extended to the case of photoluminescence emission. Here,Expand
Very efficient light emission from bulk crystalline silicon
Due to its indirect bandstructure, bulk crystalline silicon is generally regarded as a poor light emitter. In contrast to this common perception, we report here on surprisingly large externalExpand
Effects of the Au/CdTe back contact on IV and CV characteristics of Au/CdTe/CdS/TCO solar cells.
A simple analytical theory is presented to explain the measured roll over and cross over behaviour of the IV characteristics of thin film CdTe solar cells. It involves a classical description of theExpand
27.6% Conversion efficiency, a new record for single-junction solar cells under 1 sun illumination
Alta Devices, Inc. has fabricated a thin-film GaAs device on a flexible substrate with an independently-confirmed solar energy conversion efficiency of 27.6%, under AM1.5G solar illumination at 1 sunExpand
Photoluminescence Excitation Spectroscopy for In-Line Optical Characterization of Crystalline Solar Cells
Techniques to permit in-line characterization during various stages of solar cell research, development, and manufacturing provide a convenient means for optimizing yield, cost, and efficiency.Expand
...
1
2
3
4
...