Basic aspects of the temperature coefficients of concentrator solar cell performance parameters

Braun, Avi; Katz, Eugene A.; Gordon, Jeffrey M.

doi:10.1002/pip.2210

Cited by 43 publications

(18 citation statements)

References 28 publications

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“…It is important to note that this approximation may not be valid at increased concentration levels due to the strong decrease of dV oc /dT as discussed in the literature [45]. However, experimental results show that the temperature coefficient of η can be approximated using Eq.…”

Section: Influence Of Optical Concentrationmentioning

confidence: 97%

“…However, this increase is lessened by the effect of the junction immediately above because the current of this junction is also increased with temperature. Bearing this in mind, the temperature coefficient of an MJ solar cell (dJ sc /dT) can be expressed as follows [45]:…”

Section: Eqementioning

confidence: 99%

“…As in the previous case, the temperature dependence of FF decreases with concentration. This can be explained by writing the temperature coefficient of the FF as [45]:…”

Section: Influence Of Optical Concentrationmentioning

confidence: 99%

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Multijunction Concentrator Solar Cells: Analysis and Fundamentals

Férnández

García‐Loureiro

Smestad

2015

High Concentrator Photovoltaics

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Multijunction (MJ) concentrator solar cells are primarily constructed of III-V semiconductor materials. The high solar-conversion efficiencies of these devices are dependent on precise control of growth conditions using one of several techniques such as molecular beam epitaxy, metal organic chemical vapour, or metal organic vapour-phase epitaxy deposition. The use of several junctions in an MJ tandem stack allows these devices to achieve efficiencies that are not possible for single-junction devices. Their behaviour is consequently complex, but it can be understood through an examination of the external quantum efficiency and the temperature dependence of each cell in the stack. This chapter lays out a systematic approach for understanding the spectral and temperature dependence of the overall MJ device by way of consideration of its component subcells. The efficiency of the cell as a function of temperature and concentration is described for both lattice-matched and metamorphic triple-junction (TJ) solar cells. The electrical characteristics and current-voltage curves are described from these considerations, and the performance of MJ solar cells under real operating conditions are then presented by considering a term describing the overall thermal factor and another term for the spectral factor. These terms can be understood from the background presented in the previous sections. Finally, the power output for the complete cell incorporated into a Fresnel lens based high-concentration photovoltaic system is presented for a particular geographic location using meteorological data.

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Section: Influence Of Optical Concentrationmentioning

confidence: 97%

Section: Eqementioning

confidence: 99%

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Multijunction Concentrator Solar Cells: Analysis and Fundamentals

Férnández

García‐Loureiro

Smestad

2015

High Concentrator Photovoltaics

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“…Bojić et al (2012) has analyzed how the SoP afSfects the electricity generation performance of the rooftop PV system. Braun et al (2013), Dincer, Meral (2010), and Hoffmann, Koehl (2014) have analyzed how the monthly average temperature affects the electricity generation performance of the solar cells in the PV panels. Badescu (2006) has simultaneously analyzed the latitude and the ToP as the impact factors of the rooftop PV system, Levinson et al (2009) has considered the latitude and the azimuth of the installed panel (AoP) at the same time, and Tiris, M., Tiris, C. (1998) have considered the latitude and the slope of the installed panel (SoP) at once.…”

Section: Literature Reviewmentioning

confidence: 99%

Development of the life-cycle economic and environmental assessment model for establishing the optimal implementation strategy of the rooftop photovoltaic system

Koo

Hong

Park³

2015

Technological and Economic Development of Economy

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Abstract.To maximize the life-cycle economic and environmental performance of the rooftop photovoltaic (PV) system in real projects, it is necessary to consider several factors such as regional climate factors (i.e., geographical and meteorological factors) and building characteristics (i.e., onsite installation factors, rooftop area limit, and budget limit). Towards this end, this study aimed to develop the life-cycle economic and environmental assessment model for establishing the optimal implementation strategy of the rooftop PV system. The robustness and reliability of the developed model were evaluated in terms of two perspectives: (i) for the effectiveness of the optimal solution, the optimization results were generated by considering the regional climate factors and building characteristics. Namely, the results for SIR 25 (saving to investment ratio at year 25), which was set at the optimization goal, were 2.540 (Busan, southern part of South Korea), 2.485 (Daejeon, central part of South Korea), and 2.266 (Seoul, northern part of South Korea), respectively; and (ii) for the efficient computation time, the time required for determining the optimal solution was only 27 seconds. The developed model can be used to easily and accurately assess the life-cycle economic and environmental performance of the rooftop PV system in the early design phase.

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“…Singh and Ravindra studied the temperature dependence of the electrical performance parameters of solar cells based on the different semiconductor materials (Singh and Ravindra, 2012). Braun et al examined the basis for the temperature dependence of the principal performance parameters of single and multi-junction concentrator solar cells (Braun et al, 2013). All these studies neglected the variable effect of optical absorption properties and described the current density-voltage (J-V) characteristics of the p-n junction solar cells under the steady state illumination by using single exponential model or quasiempirical model.…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature on performance of nanostructured silicon thin-film solar cells

Xuan

2015

Solar Energy

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Basic aspects of the temperature coefficients of concentrator solar cell performance parameters

Cited by 43 publications

References 28 publications

Multijunction Concentrator Solar Cells: Analysis and Fundamentals

Multijunction Concentrator Solar Cells: Analysis and Fundamentals

Development of the life-cycle economic and environmental assessment model for establishing the optimal implementation strategy of the rooftop photovoltaic system

Effect of temperature on performance of nanostructured silicon thin-film solar cells

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