Graphene-based photovoltaic cells for near-field thermal energy conversion - Archive ouverte HAL Access content directly
Journal Articles Scientific Reports Year : 2013

Graphene-based photovoltaic cells for near-field thermal energy conversion

(1) , (1)
1

Abstract

Thermophotovoltaic devices are energy-conversion systems generating an electric current from the thermal photons radiated by a hot body. While their efficiency is limited in far field by the Schockley-Queisser limit, in near field the heat flux transferred to a photovoltaic cell can be largely enhanced because of the contribution of evanescent photons, in particular for a source supporting a surface mode. Unfortunately, in the infrared where these systems operate, the mismatch between the surface-mode frequency and the semiconductor gap reduces drastically the potential of this technology. In this paper we propose a modified thermophotovoltaic device in which the cell is covered by a graphene sheet. By discussing the transmission coefficient and the spectral properties of the flux, we show that both the cell efficiency and the produced current can be enhanced, paving the way to promising developments for the production of electricity from waste heat.
Fichier principal
Vignette du fichier
srep01383.pdf (852.92 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

hal-00817548 , version 1 (25-04-2013)

Identifiers

Cite

Riccardo Messina, Philippe Ben-Abdallah. Graphene-based photovoltaic cells for near-field thermal energy conversion. Scientific Reports, 2013, 3, pp.1383. ⟨10.1038/srep01383⟩. ⟨hal-00817548⟩
155 View
327 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More