Distributed series resistance effects in solar cells

Nielsen, Line

doi:10.1109/t-ed.1982.20784

Cited by 88 publications

(41 citation statements)

References 5 publications

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“…This is the same result as that derived by Nielsen [28]. Using the finite element calculation for the above solar cell, and doing a numerical integration gives the effective resistance for the short circuit condition to be R e = 1.657 Ω.…”

Section: Calculation Of Series Resistancesupporting

confidence: 81%

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The effect of the front contact sheet resistance on solar cell performance

Denhoff

Drolet

2009

Solar Energy Materials and Solar Cells

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The transparent top contact layer of a solar cell is a distributed resistance that cannot be easily represented mathematically. We have used a finite element model to calculate the current distribution in this transparent layer. The calculation gives the voltage drop along the layer as well as the resulting reduction in the current generated in the active layer of the solar cell. IV curves generated by the model are used to investigate various methods of experimentally determining series resistance. It is found that the suns-V oc method is the most accurate. A fit of the finite element model to experimental IV data from an organic solar cell is used as an example of obtaining solar cell model parameters.

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Section: Calculation Of Series Resistancesupporting

confidence: 81%

“…In particular, this lead to a two diode model to approximate the distributed resistance effects. Perhaps the most complete analytical treatment was by Nielsen [28], who derived a pair of coupled, non-linear differential equations to describe the problem. These equations could only be solved approximately.…”

Section: Introductionmentioning

confidence: 99%

The effect of the front contact sheet resistance on solar cell performance

Denhoff

Drolet

2009

Solar Energy Materials and Solar Cells

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“…The actual performance of a concentrator system with high chromatic aberration is expected to be within these two extremes cases as already proven by experimental results (12). Predicting this behavior is not intuitive at all, therefore simulations based on distributed model are very useful to understand this phenomenon (2,11,(13)(14)(15)(16)(17)(18).…”

Section: Spatial and Spectral Non-uniform Light Distribution On Multimentioning

confidence: 90%

Understanding causes and effects of non-uniform light distributions on multi-junction solar cells: Procedures for estimating efficiency losses

Herrero¹,

Victoria²,

Domínguez³

et al. 2015

AIP Conference Proceedings

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Abstract. This paper presents the mechanisms of efficiency losses that have to do with the non-uniformity of the irradiance over the multi-junction solar cells and different measurement techniques used to investigate them. To show the capabilities of the presented techniques, three different concentrators (that consist of an acrylic Fresnel lens, different SOEs and a lattice matched multi-junction cell) are evaluated. By employing these techniques is possible to answer some critical questions when designing concentrators as for example which degree of non-uniformity the cell can withstand, how critical the influence of series resistance is, or what kind of non-uniformity (spatial or spectral) causes more losses.

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“…This model uses the lumped series resistance R, to approximate the voltage-dependent distributed series resistance associated with non-uniform current flow across the p-n junction to the contacts. 7,8 The shunt resistance of our solar cells, which is 1.5 × 10 9 , has a negligible effect on the I-V characteristics for V > 0.1 V. At large forward voltages, R is a constant which can be determined from the slope of the I-V characteristic as shown below.…”

confidence: 99%

“…Energy conversion efficiency can be degraded by non-optimized material quality and surface passivation, 6 a large series resistance 7 and other processing-induced effects. The typical model 8 for the series resistance of a GaAs solar cell includes a lumped series resistance component in series with a processing-dependent contact resistance. In this paper we report the observation of an anomalously large series resistance, an abrupt decrease in the series resistance and a concurrent steep increase in the dark current at a threshold voltage, and subsequent hysteresis in the current-voltage (I-V) characteristics of GaAs single p-n junction solar cells.…”

mentioning

confidence: 99%

Charge-induced series resistance switching in GaAs solar cells

Folkes

Olver

2012

AIP Advances

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We report the observation of an abrupt decrease in the series resistance and a concurrent steep increase in the dark current at a threshold voltage, and subsequent hysteresis in the current-voltage characteristics of GaAs p-n junction solar cells. Our data suggests that the observed switch in the series resistance can be attributed to a thin insulating layer at the contact / semiconductor interface that contributes a voltage-and-light-dependent component to the solar cell series resistance

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Distributed series resistance effects in solar cells

Cited by 88 publications

References 5 publications

The effect of the front contact sheet resistance on solar cell performance

The effect of the front contact sheet resistance on solar cell performance

Understanding causes and effects of non-uniform light distributions on multi-junction solar cells: Procedures for estimating efficiency losses

Charge-induced series resistance switching in GaAs solar cells

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