18 citations · 64 across the 11 of their papers we have counts for
12 papers
Defect detection in III-V multijunction solar cells using reverse-bias stress tests
Aitana Cano, Iván García, Ignacio Rey-Stolle +3
Reverse biasing triple-junction GaInP/Ga(In)As/Ge solar cells may affect their performance by the formation of permanent shunts even if the reverse breakdown voltage is not reached…
Arsenic diffusion in MOVPE-Grown GaAs/Ge epitaxial structures
V. Orejuela, E. Garcia-Tabares, I. Rey-Stolle +1
Germanium is reemerging as a prominent material in the semiconductor field, particularly for electronic applications, photonics, photovoltaics and thermophotovoltaics. Its combinat…
Hybrid III-V/SiGe solar cells on Si substrates and porous Si substrates
Pablo Caño, Manuel Hinojosa, Luis Cifuentes +6
A tandem GaAsP/SiGe solar cell has been developed employing group-IV reverse buffer layers grown on silicon substrates with a subsurface porous layer. Reverse buffer layers facilit…
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…
Thinned GaInP/GaInAs/Ge solar cells grown with reduced cracking on Ge|Si virtual substrates
Ivan García, Laura Barrutia, Shabnam Dadgostar +3
Reducing the formation of cracks during growth of GaInP/GaInAs/Ge 3-junction solar cells on Ge|Si virtual substrates has been attempted by thinning the structure, namely the Ge bot…
High-Low Refractive Index Stacks for Broadband Antireflection Coatings for Multijunction Solar Cells
GuoJiao Hou, Iván García, Ignacio Rey-Stolle
Antireflection coatings are an interesting challenge for multijunction solar cells due to their broadband spectrum absorption and the requirement of current matching of each subcel…
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…
Impact of the III-V/Ge nucleation routine on the performance of high efficiency multijunction solar cells
Laura Barrutia, Ivan García, Enrique Barrigon +3
This paper addresses the influence of III-V nucleation routines on Ge substrates for the growth of high efficiency multijunction solar cells. Three exemplary nucleation routines wi…
Inverted rear-heterojunction GaInP solar cells using Te memory effect
Manuel Hinojosa, Iván García, Ignacio Rey-Stolle +1
Tellurium allows attaining heavy n-type doping levels in GaAs, which is suited to achieve very low contact resistivities in solar cells. Besides, it modifies the energy bandgap of…
Ge virtual substrates for high efficiency III-V solar cells: applications, potential and challenges
Iván García, Manuel Hinojosa, Iván Lombardero +7
Virtual substrates based on thin Ge layers on Si by direct deposition have achieved high quality recently. Their application to high efficiency III-V solar cells is analyzed in thi…
Bistable Amphoteric Native Defect Model of Perovskite Photovoltaics
W. Walukiewicz, I. Rey-Stolle, G. Han +6
The past few years have witnessed unprecedented rapid improvement of the performance of a new class of photovoltaics based on halide perovskites. This progress has been achieved ev…
Application of photoreflectance to advanced multilayer structures for photovoltaics
D. Fuertes Marrón, E. Cánovas, I. Artacho +11
Photoreflectance (PR) is a convenient characterization tool able to reveal optoelectronic properties of semiconductor materials and structures. It is a simple non-destructive and c…