High concentration photovoltaic systems applying III–V cells

Zubi, Ghassan; Bernal-Agustín, José L.; Fracastoro, Giovanni Vincenzo

doi:10.1016/j.rser.2009.07.002

Cited by 99 publications

(40 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…HCPV technology is based on the use of less expensive optical elements to collect direct incidence sunlight and concentrate it to approximately 300× to 2000× on the surface of the solar cell. The aim is to decrease the cost of electricity, thus decreasing the semiconductor material by the use of the less expensive optics [72][73][74][75]. Under actual conditions, the performance of MJ solar cells in an HCPV system will be affected by time-varying atmospheric parameters.…”

Section: Performance Of Mj Solar Cells Under Real Operating Conditionsmentioning

confidence: 99%

Multijunction Concentrator Solar Cells: Analysis and Fundamentals

Férnández

García‐Loureiro

Smestad

2015

High Concentrator Photovoltaics

View full text Add to dashboard Cite

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.

show abstract

Section: Performance Of Mj Solar Cells Under Real Operating Conditionsmentioning

confidence: 99%

Multijunction Concentrator Solar Cells: Analysis and Fundamentals

Férnández

García‐Loureiro

Smestad

2015

High Concentrator Photovoltaics

View full text Add to dashboard Cite

show abstract

“…Additionally, it was experimentally found that cutting a solar cell and rebuilding its micro-connections implied a level of complexity that should be avoided if possible. Therefore, it was decided to use available GreenVolts modules [14] which came with 5.5x5.5 mm Ga cells embedded in their own circuit with diode. With an allowable 0.102 m 2 Ga area, it would then be possible to locate 3371 CPVs, each one with a 0.00003025 m 2 Ga area.…”

Section: Areas and Number Of Cpvsmentioning

confidence: 99%

Designing a concentrating photovoltaic (CPV) system in adjunct with a silicon photovoltaic panel for a solar competition car

Arias-Rosales¹,

Barrera-Velásquez

Osorio-Gómez

et al. 2014

SPIE Proceedings

View full text Add to dashboard Cite

Solar competition cars are a very interesting research laboratory for the development of new technologies heading to their further implementation in either commercial passenger vehicles or related applications. Besides, worldwide competitions allow the spreading of such ideas where the best and experienced teams bet on innovation and leading edge technologies, in order to develop more efficient vehicles. In these vehicles, some aspects generally make the difference such as aerodynamics, shape, weight, wheels and the main solar panels. Therefore, seeking to innovate in a competitive advantage, the first Colombian solar vehicle "Primavera", competitor at the World Solar Challenge (WSC)-2013, has implemented the usage of a Concentrating Photovoltaic (CPV) system as a complementary solar energy module to the common silicon photovoltaic panel. By harvesting sunlight with concentrating optical devices, CPVs are capable of maximizing the allowable photovoltaic area. However, the entire CPV system weight must be less harmful than the benefit of the extra electric energy generated, which in adjunct with added manufacture and design complexity, has intervened in the fact that CPVs had never been implemented in a solar car in such a scale as the one described in this work. Design considerations, the system development process and implementation are presented in this document considering both the restrictions of the context and the interaction of the CPV system with the solar car setup. The measured data evidences the advantage of using this complementary system during the competition and the potential this technology has for further developments.

show abstract

“…Each subcell in it absorbs different wavelengths light [1][2][3][4]. HCPV modules based on Fresnel lens have now become a research hotspot [5,6]. Work was carried out for Fresnel lens design [7,8] focused on improving the illumination energy on the cell, by improving the efficiency of the optical lens.…”

Section: Introductionmentioning

confidence: 99%

The III–V Triple-Junction Solar Cell Characteristics and Optimization with a Fresnel Lens Concentrator

Guo

Qi-Bing

Shu

et al. 2018

International Journal of Photoenergy

View full text Add to dashboard Cite

At present, the Fresnel lens are commonly used as the condenser in high-concentrating photovoltaic (HCPV) modules. It is ideally believed that the output power of a III-V triple-junction solar cell which is placed on the focal plane of a Fresnel lens is the largest, because the intensity of the sunlight on the focal plane is the largest. Actually, according to our work, the dispersion of sunlight through a Fresnel lens and the nonparallelism and divergence of the incident light will lead to changes in the spectrum and the homogeneity of illumination, and cause a drop of the solar cell output. In this paper, the influence of the dispersion and nonparallel incidence of the light on the output of a triple-junction solar cell at different positions near the focal plane were theoretically studied, combined with the light-tracing simulation method and triple-junction solar cell circuit network model. The results show that the III-V triple-junction solar cell has the highest output power in both sides of the focal plane positions. The output power can be increased by about 15% after being optimized. The simulation results were verified by the experiments.

show abstract

High concentration photovoltaic systems applying III–V cells

Cited by 99 publications

References 3 publications

Multijunction Concentrator Solar Cells: Analysis and Fundamentals

Multijunction Concentrator Solar Cells: Analysis and Fundamentals

Designing a concentrating photovoltaic (CPV) system in adjunct with a silicon photovoltaic panel for a solar competition car

The III–V Triple-Junction Solar Cell Characteristics and Optimization with a Fresnel Lens Concentrator

Contact Info

Product

Resources

About