@conference{10902/29282,
year = {2016},
month = {9},
url = {https://hdl.handle.net/10902/29282},
abstract = {Technology Computer Aided Design modeling is used to examine the performance under light concentration of a 4-J solar cell Ge-based that includes a 1-eV MBE-grown dilute nitride subcell. The 1-eV solar cell is modeled and examined by using material parameters extracted from detailed electro-optical characterization prior to be included into a multijunction structure. The modelling reveals the impact of the electric field-assisted collection in the performance of single junction solar cells and its effect when included in a 4-Junction solar cells. This effect is responsible for the lower FF (~15% lower) in the 4J when including the dilute nitride subcell, especially if it limits the photocurrent. Finally, an optimization procedure based on dilute nitrides with higher material quality is performed resulting in a 4-Junction solar cell with an efficiency of 47% for concentrations between 1000-2000 suns direct terrestrial spectrum.},
organization = {This work has been supported by the Spanish MINECO through the projects TEC2014-54260-C3-3-P and TEC2014-54260-C3-1-P, PCIN-2015-181-C02-01, PCIN-2015-181-C02-02 and by the Comunidad de Madrid through the project MADRID-PV (S2013/MAE-2780). European Commission has also contributed by means of the LONGESST project (FP7 grant Agreement Number 607153). IQE has subcontracted NTU within the frame of the LONGESST project.},
publisher = {American Institute of Physics},
publisher = {AIP Conference Proceedings, 2016, 1766(1), 080003},
publisher = {12th International Conference on Concentrator Photovoltaic Systems (CPV-12), Freiburg, Germany, 2016},
title = {Modelling of lattice matched dilute nitride 4-junction concentrator solar cells on Ge substrates},
author = {Ochoa Gómez, Mario and García Vara, Iván and Lombardero Hernández, Iván and Ayllón Lázaro, Luna and Rey-Stolle Prado, Ignacio and Algora del Valle, Carlos and Johnson, Andrew and Davies, J. Iwan and Tan, Kian Hua and Loke, Wan Khai and Wicaksono, Satrio and Yoon, Soon Fatt and Ochoa Martínez, Efraín and Gabás Pérez, María Mercedes},
}