38 citations · 110 across the 11 of their papers we have counts for
12 papers
Improved GaInP/GaAs/GaInAs inverted metamorphic triple-junction solar cells by reduction of Zn diffusion in the top subcell
Manuel Hinojosa, Ivan Lombardero, Carlos Algora +1
The growth of heavily doped tunnel junctions in inverted metamorphic multijunction solar cells induces a strong diffusion of Zn via a point-defects-assisted mechanism. The redistri…
Thinned Germanium Substrates for III-V Multijunction Solar Cells
Ivan Lombardero, Naoya Miyashita, Mario Ochoa +2
Multijunction solar cells are usually grown on Ge substrates. This implies several disadvantages that hinder the performance of the whole multijunction and limit their possible app…
Evidence of enhanced Zn-diffusion observed during the growth of Inverted Metamorphic Solar Cells
Manuel Hinojosa, Ivan Garcia, Ignacio Rey-Stolle +1
Zinc-diffusion can induce multiple failures in the electrical performance of a multijunction solar cell. In this work, we show an important Zn-diffusion from the AlGaInP back-surfa…
Design of AlGaAs Laser Power Converters for the First Transmission Window
Marina Delgado, Iván García, Carlos Algora
Thermalization losses in Laser Power Converters for the first transmission window occur due to the energy difference between 808 nm wavelength photons and the GaAs bandgap energy w…
Point-defects assisted Zn-diffusion in AlGaInP/GaInP systems during the MOVPE growth of inverted multijunction solar cells
Manuel Hinojosa, Iván García, Shabnam Dadgostar +1
We investigate the dynamics of Zn diffusion in MOVPE-grown AlGaInP/GaInP systems by the comparison of different structures that emulate the back-surface field (BSF) and base layers…
On the Use of Graphene to Improve the Performance of Concentrator III-V Multijunction Solar Cells
Laura Barrutia, IvÁn Lombardero1, Mario Ochoa +6
Graphene has been intensively studied in photovoltaics focusing on emerging solar cells based on thin films, dye-sensitized, quantum dots, nanowires, etc. However, the typical effi…