Design of Multijunction Photovoltaic Cells Optimized for Varied Atmospheric Conditions

Zhang, Chenlong; Gwamuri, Jephias; Andrews, Rob W.; Pearce, Joshua M.

doi:10.1155/2014/514962

Cited by 10 publications

(4 citation statements)

References 33 publications

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“…Due to the major interest for photovoltaic technology, the researchers have developed various types of photovoltaic cells, such as multijunction, perovskite, and quantum well [5][6][7][8][9]. Although these types of photovoltaic cells are very promising, the monocrystalline, polycrystalline, and the amorphous silicon photovoltaic cells and panels are still more widely used in terrestrial applications.…”

Section: Introductionmentioning

confidence: 99%

Study of Temperature Coefficients for Parameters of Photovoltaic Cells

Cotfas

Machidon

2018

International Journal of Photoenergy

115

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The temperature is one of the most important factors which affect the performance of the photovoltaic cells and panels along with the irradiance. The current voltage characteristics, I-V, are measured at different temperatures from 25°C to 87°C and at different illumination levels from 400 to 1000 W/m2, because there are locations where the upper limit of the photovoltaic cells working temperature exceeds 80°C. This study reports the influence of the temperature and the irradiance on the important parameters of four commercial photovoltaic cell types: monocrystalline silicon—mSi, polycrystalline silicon—pSi, amorphous silicon—aSi, and multijunction InGaP/InGaAs/Ge (Emcore). The absolute and normalized temperature coefficients are determined and compared with their values from the related literature. The variation of the absolute temperature coefficient function of the irradiance and its significance to accurately determine the important parameters of the photovoltaic cells are also presented. The analysis is made on different types of photovoltaics cells in order to understand the effects of technology on temperature coefficients. The comparison between the open-circuit voltage and short-circuit current was also performed, calculated using the temperature coefficients, determined, and measured, in various conditions. The measurements are realized using the SolarLab system, and the photovoltaic cell parameters are determined and compared using the LabVIEW software created for SolarLab system.

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Section: Introductionmentioning

confidence: 99%

Study of Temperature Coefficients for Parameters of Photovoltaic Cells

Cotfas

Machidon

2018

International Journal of Photoenergy

115

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“…InxGa1-xN, which really has come under renewed interest as a candidate material of high-efficiency multi-junction PV devices due to bandgap engineering between 0.7eV and 3.4eV by varying the x [35][36][37][38][39] is used as an example. In this case a single bandgap material of In0.54Ga0.46N is analyzed.…”

Section: Methodsmentioning

confidence: 99%

Controlling optical absorption in metamaterial absorbers for plasmonic solar cells

et al. 2015

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Metals in the plasmonic metamaterial absorbers for photovoltaics constitute undesired resistive heating. However, tailoring the geometric skin depth of metals can minimize resistive losses while maximizing the optical absorbance in the active semiconductors of the photovoltaic device. Considering experimental permittivity data for InxGa1-xN, absorbance in the semiconductor layers of the photovoltaic device can reach above 90%. The results here also provides guidance to compare the performance of different semiconductor materials. This skin depth engineering approach can also be applied to other optoelectronic devices, where optimizing the device performance demands minimizing resistive losses and power consumption, such as photodetectors, laser diodes, and light emitting diodes.

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“…Another promising avenue is the development of "tunable" multijunction cells that can be adapted to a local climate based on SMARTS simulations [16,108].…”

Section: Spectral Modellingmentioning

confidence: 99%

Solar Resource for High-Concentrator Photovoltaic Applications

Ruiz‐Arias

Gueymard²

2015

High Concentrator Photovoltaics

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Direct solar radiation is the main fuel for concentrating photovoltaic (CPV) technologies. At any instant, the magnitude and spectral distribution of incoming direct normal irradiance (DNI) on the concentrator determines the instantaneous power produced by the generator. On a seasonal or mean annual basis, the magnitude of the DNI resource also directly affects the design of the whole system. Therefore, detailed knowledge of the available solar resourceessentially in terms of broadband DNI-is required at the system's design stage to evaluate the anticipated power to be produced by the projected CPV plant. This chapter is devoted to providing a better understanding of the current methods used in solar resource assessment to accommodate the specific needs of CPV projects. To this aim, the chapter starts with an introductory discussion on extraterrestrial solar radiation and its transfer throughout the Earth's atmosphere. Later on, the most common solar radiation modelling approaches for solar energy applications are discussed preceding a brief review of the best current measuring techniques and data quality-control methods for solar radiation. This includes important measurement recommendations for CPV applications. The chapter ends with brief discussions on spectral and circumsolar solar radiation.

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Design of Multijunction Photovoltaic Cells Optimized for Varied Atmospheric Conditions

Cited by 10 publications

References 33 publications

Study of Temperature Coefficients for Parameters of Photovoltaic Cells

Study of Temperature Coefficients for Parameters of Photovoltaic Cells

Controlling optical absorption in metamaterial absorbers for plasmonic solar cells

Solar Resource for High-Concentrator Photovoltaic Applications

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