Illumination intensity and spectrum-dependent performance of thin-film silicon single and multijunction solar cells

Agbo, S. N.; Merdzhanova, Tsvetelina; Rau, Uwe; Astakhov, Oleksandr

doi:10.1016/j.solmat.2016.09.039

Cited by 31 publications

(24 citation statements)

References 37 publications

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Section: Resultssupporting

confidence: 92%

“…It can be seen that J SC decreases linearly with decreasing intensity and slightly increases with the temperature, in agreement with results reported in the literature . The V OC decreases with illumination intensity . It decreases with increasing temperature over the entire range of intensities: for example, in the case of 1 sun intensity, V OC is reduced from 2.23 V down to 2.00 V for the temperature range between 25° to 60 °C.…”

Section: Resultssupporting

confidence: 91%

“…For temperatures below 40 °C, the fill factor decreases with increasing intensity; while for higher temperatures the fill factor increases with an increasing intensity, suggesting a tradeoff between several competing mechanisms (such as possible changes in recombination and/or field distribution profiles in the sub cells), influencing FF over temperature and intensity range. The resulting efficiency η shows an increase with increasing intensity, but a decrease with increasing temperature …”

Section: Resultsmentioning

confidence: 99%

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The Influence of Operation Temperature and Variations of the Illumination on the Performance of Integrated Photoelectrochemical Water‐Splitting Devices

et al. 2017

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Renewable and storable fuel hydrogen can be produced through light‐driven water splitting using photovoltaic‐biased electrosynthetic (PV‐EC) devices. The required voltage to drive the reaction is approximately 1.5 V, which can be provided using multi‐junction silicon solar cells. To generate these voltages at the operation point, the solar cells are electrically optimized with respect to the standard test conditions. However, if such devices were to be used outdoors, a wide range of different illumination conditions has to be considered. Herein, we discuss the dependence of the solar‐to‐hydrogen efficiency on the spectral quality, the incident illumination intensity and the operation temperature. It is found that in the case of high irradiation intensities (e. g. 1 sun), high operation temperatures reduce the PV performance, but the overall PV‐EC device performance remains almost unchanged due to improved kinetics in the EC part. In contrast, when the illumination intensity is reduced, the loss in PV performance cannot be compensated by improved EC performances due to higher temperatures.

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Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

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The Influence of Operation Temperature and Variations of the Illumination on the Performance of Integrated Photoelectrochemical Water‐Splitting Devices

et al. 2017

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“…For example, the optimum output current of a PV cell is generated when the incident spectrum matches with the spectral absorption properties of the semiconductor [107] and are more sensitive to the incident light spectrum below 1000nm for a silicon PV cell [33,[73][74][75][76]. Multi-junction PV cells are more sensitive to the spectrum of the light source which affects their fill factor and short-circuit resistance [77]. Therefore, researchers tended to use multi-light source synthesis to improve the spectral matching for PV performance testing.…”

Section: Light Sourcesmentioning

confidence: 99%

Light source selection for a solar simulator for thermal applications: A review

Tawfik

Tonnellier

Sansom

2018

Renewable and Sustainable Energy Reviews

123

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Solar simulators are used to test components and systems under controlled and repeatable conditions, often in locations with unsuitable insolation for outdoor testing. The growth in renewable energy generation has led to an increased need to develop, manufacture and test components and subsystems for solar thermal, photovoltaic (PV), and concentrating optics for both thermal and electrical solar applications. At the heart of any solar simulator is the light source itself. This paper reviews the light sources available for both low and high-flux solar simulators used for thermal applications. Criteria considered include a comparison of the lamp wavelength spectrum with the solar spectrum, lamp intensity, cost, stability, durability, and any hazards associated with use. Four main lamp types are discussed in detail, namely argon arc, the metal halide, tungsten halogen lamp, and xenon arc lamps.In addition to describing the characteristics of each lamp type, the popularity of usage of each type over time is also indicated. This is followed by guidelines for selecting a suitable lamp, depending on the requirements of the user and the criteria applied for selection. The appropriate international standards are also addressed and discussed. The review shows that metal halide and xenon arc lamps predominate, since both provide a good spectral match to the solar output. The xenon lamp provides a more intense and stable output, but has the disadvantages of being a high-pressure component, requiring infrared filtering, and the need of a more complex and expensive power supply. As a result, many new solar simulators prefer metal halide lamps. KeywordsSolar simulator, sunlight, solar spectrum, CSP, metal halide, tungsten lamp 1 Introduction The growing demand for energy, combined with issues of environmental pollution, climate change, and the rapid depletion of fossil fuels, have encouraged the research and development of cost effective renewable alternatives [1-3]. Solar electrical and thermal energy research groups have focused on developing novel technologies and on improving existing renewable solutions. In 2014, the global combined installed capacity of solar hot water and concentrating solar power (CSP) was 410.4 GW, representing 8% of the world's renewable energy sources [4].The transient nature of solar energy represents a critical challenge for technologies testing. Outdoor experiments are carried out in real but uncontrollable environments. For example, incident solar energy levels are highly dependent on atmospheric conditions and sky clarity over time [5]. Therefore, achieving

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“…To date, the highest power conversion efficiency (PCE) (more than 10%) is recorded by the state‐of‐the‐art single‐junction PV devices in which thin‐film silicon material is utilized. [ 1,2 ] However, unabsorbed solar spectra and thermalization losses are the major hindrances of the single‐junction PV devices. [ 3 ] Approximately 58% energy losses are contributed by the aforementioned phenomena, which is in addition to further losses such as collection and reflection, resulted in the fundamental limit, i.e., Shockley–Queisser limit of ≈33% for single‐junction PV devices.…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation of a‐Si:H/PbS Colloidal Quantum Dots Monolithic Tandem Solar Cell for 12% Efficiency

Kashyap

Pandey

Madan

et al. 2020

Physica Status Solidi (a)

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Tandem solar cells (TSC) is the most promising photovoltaic technology, as it efficiently overcomes the thermalization and nonabsorption losses. In this context, thin-film/colloidal quantum dot (CQD)-based 2-terminal monolithic TSCs are designed using a-Si:H of wide bandgap (1.7 eV) as the top cell and PbS CQD of narrow bandgap (1.2 eV) as the bottom cell. Initially, top and bottom subcells are designed and calibrated to have state-of-the-art power conversion efficiencies (PCE) of 6.86% and 9.38%, respectively. Afterward, the thicknesses of the inverted bottom cell are optimized as 200 nm so as to obtain 8.34% efficiency. The standalone condition reflects current density (J SC)/open-circuit voltage (V OC) of 9.97 mA cm À2 and 0.91 V in the top cell and 21.28 mA cm À2 / 0.63 V in the bottom cell. Further, both subcells are evaluated for tandem configuration with ITO-based interlayer to provide the current matching conditions. In the proposed tandem design, the thickness of the absorber layers is optimized to achieve the highest J SC , which is indeed limited by the top cell, due to a lower J SC value of 10.61 mA cm À2 in standalone conditions. Optimized tandem design with 200 nm/150 nm-thick absorber layer-based top/bottom subcell results in

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Illumination intensity and spectrum-dependent performance of thin-film silicon single and multijunction solar cells

Cited by 31 publications

References 37 publications

The Influence of Operation Temperature and Variations of the Illumination on the Performance of Integrated Photoelectrochemical Water‐Splitting Devices

The Influence of Operation Temperature and Variations of the Illumination on the Performance of Integrated Photoelectrochemical Water‐Splitting Devices

Light source selection for a solar simulator for thermal applications: A review

Design and Simulation of a‐Si:H/PbS Colloidal Quantum Dots Monolithic Tandem Solar Cell for 12% Efficiency

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