New Results in Optical Modelling of Quantum Well Solar Cells

Fara, Silvian; Sterian, Paul E.; Fara, Laurenţiu; Iancu, Mihai; Sterian, Andreea Rodica

doi:10.1155/2012/810801

Cited by 9 publications

(8 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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%

“…The I-V characteristics measured under illumination at 1000 W/m 2 irradiance and at different temperatures, which varies from 26°C to 87°C, are presented in Figure 4 The open-circuit voltage is strongly affected by the temperature variation. The increase in temperature led to decreasing the value of the band gap energy (see (9)). The intrinsic carrier concentration, n i , increases because it depends inversely exponentially on the band gap energy [14].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Study of Temperature Coefficients for Parameters of Photovoltaic Cells

Cotfas

Machidon

2018

International Journal of Photoenergy

115

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Study of Temperature Coefficients for Parameters of Photovoltaic Cells

Cotfas

Machidon

2018

International Journal of Photoenergy

115

View full text Add to dashboard Cite

show abstract

“…The quantum well solar cell is a p-i-n structure, which contains quantum wells built in the intrinsic [8]. The device discussed in this work is a simple GaAs p-i-n solar cell as shown in Figure 3.…”

Section: Methodsmentioning

confidence: 99%

Quantum mechanical effects analysis of nanostructured solar cell models

Badea

Drăgan

Fara

et al. 2016

Renew. Energy Environ. Sustain.

Self Cite

View full text Add to dashboard Cite

Abstract. The quantum mechanical effects resulted from the inclusion of nanostructures, represented by quantum wells and quantum dots, in the i-layer of an intermediate band solar cell will be analyzed. We will discuss the role of these specific nanostructures in the increasing of the solar cells efficiency. InAs quantum wells being placed in the i-layer of a gallium arsenide (GaAs) p-i-n cell, we will analyze the quantum confined regions and determine the properties of the eigenstates located therein. Also, we simulate the electroluminescence that occurs due to the nanostructured regions.

show abstract

“…The third part of the chapter is dedicated to the particularities of the quantum well solar cells. The simulation results for the optical parameters (refraction index, reflectance, absorption coefficient) are presented as well as those for the optimization of the quantum efficiency of QW solar cells [21,[29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Dynamics in Optoelectronics Structures with Quantum Well

Sterian¹

2018

Recent Development in Optoelectronic Devices

View full text Add to dashboard Cite

The author presents some results on nonlinear dynamics in optoelectronics nanostructures as lasers with quantum wells and quantum well solar cells using mathematical modeling and numerical simulations of the phenomena which take place in such kinds of structures. The nonlinear dynamics takes the complexity of the phenomena into account, which govern the field-substance interaction. Computational software was elaborated to study the nonlinear phenomena in such quantum devices, which put into evidence their complex nonlinear dynamics, characterized by bifurcation points and chaos, and the critical values of the parameters being determined. The mathematical modeling and numerical simulations for the quantum well solar cells for optimizing the values of their optical parameters (refraction index, reflectance, and absorption) were also analyzed, so that the conversion efficiency of the devices can be improved. Although in our study we have considered only rectangular quantum wells, the hybrid model allows computing the optimum values of the parameters whatsoever the form of the quantum wells. The developed numerical models and the obtained results are consistent with the existing data in the literature for the optoelectronics of quantum well structures, having important implications in the applications.

show abstract

New Results in Optical Modelling of Quantum Well Solar Cells

Cited by 9 publications

References 16 publications

Study of Temperature Coefficients for Parameters of Photovoltaic Cells

Study of Temperature Coefficients for Parameters of Photovoltaic Cells

Quantum mechanical effects analysis of nanostructured solar cell models

Nonlinear Dynamics in Optoelectronics Structures with Quantum Well

Contact Info

Product

Resources

About