Light-trapping in photon enhanced thermionic emitters

Buencuerpo, J., Llorens, J.M., Zilio, Pierfrancesco, Raja, Waseem, Cunha, Joao, Alabastri, Alessandro, Zaccaria, Remo Proietti, Martí Vega, Antonio ORCID: and Versloot, T. (2015). Light-trapping in photon enhanced thermionic emitters. "Optics Express", v. 23 (n. 19); pp. 1220-1235. ISSN 1094-4087.


Title: Light-trapping in photon enhanced thermionic emitters
  • Buencuerpo, J.
  • Llorens, J.M.
  • Zilio, Pierfrancesco
  • Raja, Waseem
  • Cunha, Joao
  • Alabastri, Alessandro
  • Zaccaria, Remo Proietti
  • Martí Vega, Antonio
  • Versloot, T.
Item Type: Article
Título de Revista/Publicación: Optics Express
Date: 27 August 2015
ISSN: 1094-4087
Volume: 23
Freetext Keywords: light, photon, electronic, emitters
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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A series of photonic crystal structures are optimized for a photon enhanced thermionic emitter. With realistic parameter values to describe a p-type GaAs device we find an efficiency above 10%. The light-trapping structures increases the performance by 2% over an optimal bilayer anti-reflective coating. We find a device efficiency very close to the case of a Lambertian absorber, but below its maximum performance. To prevent an efficiency below 10% the vacuum gap must be dimensioned according to the concentration factor of the solar irradiance.

Funding Projects

Madrid Regional Government
Materiales, dispositivos y tecnología para el desarrollo de la Industria fotovoltaica.
Government of Spain
Aplicación de estructuras cuánticas y otros nuevos conceptos a la mejora de la eficiencia de las células solares, subproyecto 2.
Government of Spain
Colaboración IMM-CSIC con INL en desarrollo de instrumentación para procesos de recubrimientos especiales en sensores.

More information

Item ID: 41033
DC Identifier:
OAI Identifier:
DOI: 10.1364/OE.23.0A1220
Official URL:
Deposited by: Memoria Investigacion
Deposited on: 05 Feb 2018 09:41
Last Modified: 30 Nov 2022 09:00
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