The field of concentrated photovoltaics (CPV) has met some remarkable advances in recent
years. The continuous increase in conversion efficiency of multijunction solar cells and new …

This chapter reviews the fundamentals of solar cells, and shows how the concept of
multijunction solar cell emerges as a response to key loss mechanisms of single junction …

Antireflection coatings are an interesting challenge for multijunction solar cells due to their
broadband spectrum absorption and the requirement of current matching of each subcell. A …

Abstract High Concentrator Photovoltaic (HCPV) units are typically based on the use of
Fresnel lenses, refractive secondary optical elements (SOE), and triple-junction (TJ) solar …

In this paper, we compare the optical and electrical performance of different Fresnel-based
HCPV systems equipped with different refractive secondary optical elements (SOEs) through …

CPV systems aim to deliver electrical power at lower cost than will be possible with
traditional photovoltaics. To achieve this, maximum performance from the solar cells should …

Most cost-effective concentrated photovoltaics (CPV) systems are based on an optical train
comprising two stages, the first being a Fresnel lens. Among them, the Fresnel-Köhler (FK) …

Here we analyze the optical performance of a novel solar concentrator design suitable for
high-concentration photovoltaic (HCPV) modules. In the design, a pair of confocal parabolic …

We propose a compact 20-mm-thick concentrating photovoltaic (CPV) module that is much
thinner than conventional CPV modules. To achieve this structure, we assembled a CPV …

Currently, most solar cells are designed for and evaluated under standard spectra intended
to represent typical spectral conditions. However, no single spectrum can capture the …