Two-step photon up-conversion solar cells

Shigeo Asahi; Haruyuki Teranishi; Kazuki Kusaki; Toshiyuki Kaizu; Takashi Kita

doi:10.1038/ncomms14962

Nature Communications (Apr 2017)

Two-step photon up-conversion solar cells

Shigeo Asahi,
Haruyuki Teranishi,
Kazuki Kusaki,
Toshiyuki Kaizu,
Takashi Kita

Affiliations

Shigeo Asahi: Department of Electrical and Electronic Engineering, Graduate School of Engineering
Haruyuki Teranishi: Department of Electrical and Electronic Engineering, Graduate School of Engineering
Kazuki Kusaki: Department of Electrical and Electronic Engineering, Graduate School of Engineering
Toshiyuki Kaizu: Department of Electrical and Electronic Engineering, Graduate School of Engineering
Takashi Kita: Department of Electrical and Electronic Engineering, Graduate School of Engineering

DOI: https://doi.org/10.1038/ncomms14962
Journal volume & issue: Vol. 8, no. 1
pp. 1 – 9

Abstract

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Harvesting incident photons with energy below the bandgap may lead to highly efficient solar cells. By introducing InAs quantum dots at the hetero-interface, Asahiet al. achieve efficient two step photon up-conversion resulting in additional photocurrent and very high external quantum efficiency.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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