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Díaz-Lobo AAuthorBraña, Alejandro FAuthor
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AlxIn1-xN on Si (100) Solar Cells (x = 0-0.56) deposited by RF sputtering

Publicated to:Materials. 13 (10): - 2020-01-01 13(10), DOI: 10.3390/ma13102336

Authors: Valdueza-Felip S; Blasco R; Olea J; Díaz-Lobo A; Braña AF; Naranjo FB

Affiliations

Univ Alcala, Photon Engn Grp, Alcala De Henares 28871, Spain - Author
Univ Autonoma Madrid, Elect & Semicond Grp, Dept Appl Phys, Madrid 28049, Spain - Author
Univ Complutense Madrid, Thin Film & Microelectron Grp, Madrid 28040, Spain - Author
Universidad Autónoma de Madrid - Author
Universidad Complutense de Madrid - Author
Universidad de Alcalá - Author
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Abstract

© 2020 by the authors. We investigate the photovoltaic performance of solar cells based on n-AlxIn1-xN(x = 0-0.56) on p-Si (100) hetero-junctions deposited by radio frequency sputtering. The AlxIn1-xN layers own an optical bandgap absorption edge tuneable from 1.73 eV to 2.56 eV within the Al content range. This increase of Al content results in more resistive layers (≈10-4-1 Ω•cm) while the residual carrier concentration drops from ~1021 to ~1019 cm-3. As a result, the top n-contact resistance varies from ≈10-1 to 1 MΩ for InN to Al0.56In0.44N-based devices, respectively. Best results are obtained for devices with 28% Al that exhibit a broad external quantum efficiency covering the full solar spectrum with a maximum of 80% at 750 nm, an open-circuit voltage of 0.39 V, a short-circuit current density of 17.1 mA/cm2 and a conversion efficiency of 2.12% under air mass 1.5 global (AM1.5G) illumination (1 sun), rendering them promising for novel low-cost III-nitride on Si photovoltaic devices. For Al contents above 28%, the electrical performance of the structures lessens due to the high top-contact resistivity.

Keywords
alinnsiliconsolar cellsSputtering

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Materials due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2020, it was in position 17/80, thus managing to position itself as a Q1 (Primer Cuartil), in the category Metallurgy & Metallurgical Engineering.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-05-02:

  • WoS: 3
  • Scopus: 6
  • OpenCitations: 7
Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-05-02:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 9.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 8 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 0.5.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://repositorio.uam.es/handle/10486/696701