RT Journal Article
T1 Optoelectronic properties of GaP:Ti photovoltaic devices
A1 Olea Ariza, Javier
A1 Gonzalo, J.
A1 Siegel, B.
A1 Braña, A. F.
A1 Godoy Pérez, G.
A1 Benítez Fernández, R.
A1 Caudevilla Gutiérrez, Daniel
A1 Algaidy, Sari
A1 Pérez Zenteno, Francisco José
A1 Duarte Cano, Sebastián
A1 Prado Millán, Álvaro Del
A1 García Hemme, Eric
A1 García Hernansanz, Rodrigo
A1 Pastor Pastor, David
A1 San Andrés Serrano, Enrique
A1 Martil De La Plaza, Ignacio
A1 Benítez Fernández, Rafael
AB Supersaturated GaP is of interest for the photovoltaic field since optical transitions at energies below the bandgap (2.26 eV) could enhance the overall device efficiency up to theoretically 60%. We have previously demonstrated that Ti supersaturated GaP can be obtained by means of ion implantation and pulsed-laser melting with high structural quality and measured its below-bandgap photoconductivity. In this work we report the first results of a GaP:Ti based photovoltaic device. We have fabricated and measured photovoltaic devices with a GaP:Ti absorber layer showing enhanced external quantum efficiency at wavelengths above 550 nm. Also, we have measured the absorption coefficient (around 104 cm−1) and refractive index of this absorber layer. Finally, current-voltage curves in darkness were measured and analyzed using a two-diodes model, showing improvable characteristics. Ideas to enhance the properties of the devices are suggested.
PB Elsevier
YR 2024
FD 2024-12
LK https://hdl.handle.net/20.500.14352/110945
UL https://hdl.handle.net/20.500.14352/110945
LA eng
NO Olea, J., Gonzalo, J., Siegel, J., Braña, A. F., Godoy-Pérez, G., Benítez-Fernández, R., Caudevilla, D., Algaidy, S., Pérez-Zenteno, F., Duarte-Cano, S., Prado, A. D., García-Hemme, E., García-Hernansanz, R., Pastor, D., San-Andrés, E., & Mártil, I. (2024). Optoelectronic properties of GaP:Ti photovoltaic devices. Materials Today Sustainability, 28, 101008. https://doi.org/10.1016/j.mtsust.2024.101008
NO Comunidad de Madrid
NO European Commission
NO Agencia Española de Investigación
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO Consejo Nacional de Humanidades, Ciencias y Tecnologías (México)
NO Universidad Complutense de Madrid
NO Ministry of Education (Saudi Arabia)
NO Ministerio de Trabajo y Economía Social. (España)
DS Docta Complutense
RD 10 abr 2025