Voltage-dependent quantum efficiency measurements of amorphous silicon multi-junction mini-modules

Hibberd, Christopher J.; Plyta, Foteini; Monokroussos, Christos; Bliss, Martin; Betts, Thomas R.; Gottschalg, Ralph

doi:10.1016/j.solmat.2010.03.039

Cited by 25 publications

(14 citation statements)

References 7 publications

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“…(1) into account, the spectral effects are finally computed as: where ΔSF is defined as the relative spectral factor and expresses the percentage of gains or losses of a PV device as a function of the short-current density at operating conditions relative to the value under reference conditions. This parameter has been proven as a reliable tool to evaluate the spectral impacts in the maximum power or energy output of a PV device [26,27].…”

Section: The Spectral Factormentioning

confidence: 99%

Effects of spectral coupling on perovskite solar cells under diverse climatic conditions

Sundaram

Férnández

Almonacid

et al. 2015

Solar Energy Materials and Solar Cells

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a b s t r a c tThe high conversion efficiency of perovskite solar cells has opened a potential market for solar cells based on low cost manufacturing techniques which could change the photovoltaic (PV) production road map. Although the 9% efficient 10 cm x 10 cm perovskite mini module has been reported, in depth analysis of the longevity of perovskite modules is required before being introduced to the market. Apart from the impressive demonstrated conversion efficiencies, these cells need to be tested under real climatic conditions in order to understand the integrity of their performance. This article briefly outlines significant spectral dependence at selected locations with varying parameters such as air mass, aerosol optical depth and precipitable water. Perovskite solar cells have shown significant dependence on the incident spectrum due to their strong absorption in the visible region. The influences of spectral variations on the performance of perovskite solar cells were studied under different atmospheric conditions. The demonstrated spectral losses by the perovskite solar cells in different climatic conditions are vital for the perovskite solar cell community to further improve their stability.

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Section: The Spectral Factormentioning

confidence: 99%

Effects of spectral coupling on perovskite solar cells under diverse climatic conditions

Sundaram

Férnández

Almonacid

et al. 2015

Solar Energy Materials and Solar Cells

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“…Spectral factor (SF) or mismatch factor (MMF) is an index indicating the ratio of the available solar irradiance between an actual solar spectrum and the standard AM1·5‐G spectrum defined in IEC 60904–3 . Although the relative spectral responses used in this study are measured under short‐circuit current conditions, they would not be significantly different from those under the voltage at the maximum power point . Therefore, we can evaluate quantitatively the difference in PV performance between an actual solar spectrum and the standard AM1·5‐G spectrum by using SF.…”

Section: Introductionmentioning

confidence: 99%

Solar spectral influence on the performance of photovoltaic (PV) modules under fine weather and cloudy weather conditions

Ishii

Otani

Takashima

et al. 2011

Progress in Photovoltaics

106

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The performance of photovoltaic modules is influenced by solar spectrum even under the same solar irradiance conditions. Spectral factor (SF) is a useful index indicating the ratio of available solar irradiance between actual solar spectrums and the standard AM1·5‐G spectrum. In this study, the influence of solar spectrum on photovoltaic performance in cloudy weather as well as in fine weather is quantitatively evaluated as the reciprocal of SF (SF−1). In the cases of fine weather, the SF−1 suggests that solar spectrum has little influence (within a few %) on the performance of pc‐Si, a‐Si:H/sc‐Si, and copper indium gallium (di)selenide modules, because of the “offset effect”. The performance of a‐Si:H modules and the top layers of a‐Si:H/µc‐Si:H modules can vary by more than ± 10% under the extreme conditions in Japan. The seasonal and locational variations in the SF−1 of the bottom layers are about ± several %. A negative correlation is shown between the top and bottom layers, indicating that the performance of a‐Si:H/µc‐Si:H modules does not exceed the performance, at which the currents of the top and bottom layers are balanced, by the influence of solar spectrum. In the cases of cloudy weather, the SF−1 of the pc‐Si, a‐Si:H/sc‐Si, and copper indium gallium (di)selenide modules is generally higher, suggesting favorable for performance than that in fine weather. Much higher SF−1 than that in fine weather is shown by the a‐Si:H module and the top layer of the a‐Si:H/µc‐Si:H module. The SF−1 of the bottom layer neither simply depend on season nor on location. Copyright © 2011 John Wiley & Sons, Ltd.

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“…This parameter quantifies the spectral losses through the ratio of the short-circuit current density at operating conditions relative to the value under reference conditions. However, as pointed out by several authors [22], [23], this ratio is a good approximation to quantify the spectral losses on the power output of a PV device.…”

Section: A Spectral Factormentioning

confidence: 98%

Effect of Spectral Irradiance Variations on the Performance of Highly Efficient Environment-Friendly Solar Cells

Fernández

Almonacid

Mallick

et al. 2015

IEEE J. Photovoltaics

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The increasing environmental concerns on photovoltaic (PV) materials have attracted much attention to environment-friendly materials for solar energy conversion. In this paper, the environment-friendly materials based on dye-sensitized solar cells (DSSC), CuZnSnSSe 2 (CZTS), and CH 3 NH 3 SnI 3 based on perovskite solar cells have been studied for their spectral dependence at selected different locations with varying parameters such as air mass, aerosol optical depth, and precipitable water. The spectral dependences of the materials have been obtained by the use of the spectral factor, and ground-based long-term climatologies in conjunction with the Simple Model of the Atmospheric Radiative Transfer of Sunshine have been used. Results show that the perovskite and DSSC solar cells show an important spectral dependence with annual spectral gains up to 3% and spectral losses up to −15%. On the other hand, CZTS solar cells show a low spectral dependence with annual spectral gains up to 2% and spectral losses up to −4%.Index Terms-Climate conditions, environment-friendly materials, high-efficiency solar cells, photovoltaic (PV) simulations, solar spectral effects.

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Voltage-dependent quantum efficiency measurements of amorphous silicon multi-junction mini-modules

Cited by 25 publications

References 7 publications

Effects of spectral coupling on perovskite solar cells under diverse climatic conditions

Effects of spectral coupling on perovskite solar cells under diverse climatic conditions

Solar spectral influence on the performance of photovoltaic (PV) modules under fine weather and cloudy weather conditions

Effect of Spectral Irradiance Variations on the Performance of Highly Efficient Environment-Friendly Solar Cells

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