Hybrid thermionic-photovoltaic converter

Datas Medina, Alejandro (2016). Hybrid thermionic-photovoltaic converter. "Applied Physics Letter", v. 108 (n. 143503); pp. 1-4. ISSN 0003-6951. https://doi.org/10.1063/1.4945712.

Description

Title: Hybrid thermionic-photovoltaic converter
Author/s:
  • Datas Medina, Alejandro
Item Type: Article
Título de Revista/Publicación: Applied Physics Letter
Date: April 2016
ISSN: 0003-6951
Volume: 108
Subjects:
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Electrónica Física
UPM's Research Group: Silicio y Nuevos Conceptos para Células Solares
Creative Commons Licenses: None

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Abstract

A conceptual device for the direct conversion of heat into electricity is presented. This concept hybridizes thermionic (TI) and thermophotovoltaic (TPV) energy conversion in a single thermionic-photovoltaic (TIPV) solid-state device. This device transforms into electricity both the electron and photon fluxes emitted by an incandescent surface. This letter presents an idealized analysis of this device in order to determine its theoretical potential. According to this analysis, the key advantage of this converter, with respect to either TPV or TI, is the higher power density in an extended temperature range. For low temperatures, TIPV performs like TPV due to the negligible electron flux. On the contrary, for high temperatures, TIPV performs like TI due to the great enhancement of the electron flux, which overshadows the photon flux contribution. At the intermediate temperatures, 1650K in the case of this particular study, I show that the power density potential of TIPV converter is twice as great as that of TPV and TI. The greatest impact concerns applications in which the temperature varies in a relatively wide range, for which averaged power density enhancement above 500% is attainable. (C) 2016 AIP Publishing LLC.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainENE2013-49429-EXPEXPLORA-MARTÍAntonio Martí VegaSUPER CELULA SOLAR DE TRES TERMINALES Y HETEROUNION QUE PARECE UN TRANSISTOR PERO QUE NO LO ES

More information

Item ID: 39923
DC Identifier: http://oa.upm.es/39923/
OAI Identifier: oai:oa.upm.es:39923
DOI: 10.1063/1.4945712
Official URL: https://doi.org/10.1063/1.4945712
Deposited by: Dr. Alejandro Datas
Deposited on: 13 Apr 2016 08:18
Last Modified: 10 Jun 2019 10:37
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