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Ochoa Martínez, Efraín and Barrutia Poncela, Laura and Ochoa Gómez, Mario and Barrigón Montañés, Enrique and García Vara, Iván and Rey-Stolle Prado, Ignacio and Algora del Valle, Carlos and Basa, Peter and Kronome, Gergely and Gabás, Mercedes (2017). Refractive indexes and extinction coefficients of n- and p-type doped GalnP, AllnP and AlGalnP for multijunction solar cells. "Solar Energy Materials And Solar Cells", v. 174 ; pp. 388-396. ISSN 0927-0248. https://doi.org/10.1016/j.solmat.2017.09.028.
Title: | Refractive indexes and extinction coefficients of n- and p-type doped GalnP, AllnP and AlGalnP for multijunction solar cells |
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Author/s: |
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Item Type: | Article |
Título de Revista/Publicación: | Solar Energy Materials And Solar Cells |
Date: | September 2017 |
ISSN: | 0927-0248 |
Volume: | 174 |
Subjects: | |
Freetext Keywords: | III-V semiconductor layers; Multijunction solar cells; Spectroscopic ellipsometry; Order parameter; Doped-GaInP (-AlInP, -AlGaInP) |
Faculty: | E.T.S.I. Telecomunicación (UPM) |
Department: | Electrónica Física |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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The optical properties of p-type, n-type and nominally undoped (AlxGa1_x)yIn1_yP layers have been determined in a wide spectral range. The layers under study have been chosen with compositions and dopant concentrations which make them interesting for their use in III-V multijunction solar cells. The layers have been measured by variable angle spectroscopic ellipsometry and, irrespective of composition and doping, their optical response has been modelled using the same model dielectric function consisting of two asymmetric Tauc-Lorentz oscillators and a 3D-M0 Adachi term. The results show that transition energy values change with layer composition, whilst for layers of the same material (i.e. GaInP or AlInP), the band-gap transition energy E0 shows a strong dependence on the order parameter. The refractive indexes and extinction coefficients deduced from the ellipsometric data have been used to fit reflectance measurements for the same layers and an excellent agreement has been achieved, thus validating the model dielectric function proposed for this kind of materials.
Type | Code | Acronym | Leader | Title |
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Government of Spain | TEC2014-54260-C3-1-P | MINECO | Unspecified | Unspecified |
Government of Spain | TEC2014-54260-C3-3-P | MINECO | Unspecified | Unspecified |
Government of Spain | PCIN- 2015-181-C02-01 | MINECO | Unspecified | Unspecified |
Government of Spain | PCIN-2015-181-C02-02 | MINECO | Unspecified | Unspecified |
Madrid Regional Government | S2013/MAE-2780 | MADRID-PV | Unspecified | Unspecified |
Item ID: | 53480 |
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DC Identifier: | https://oa.upm.es/53480/ |
OAI Identifier: | oai:oa.upm.es:53480 |
DOI: | 10.1016/j.solmat.2017.09.028 |
Official URL: | https://www.sciencedirect.com/science/article/pii/S0927024817305172?via%3Dihub |
Deposited by: | Memoria Investigacion |
Deposited on: | 26 Mar 2019 17:32 |
Last Modified: | 30 Nov 2022 09:00 |