Back Reflector with Diffractive Gratings for Light-Trapping in Thin-Film III-V Solar Cells

Timo Aho, Antti Tukiainen, Farid Elsehrawy, Sanna Ranta, Marianna Raappana, Arto Aho, Riku Isoaho, Federica Cappelluti, Mircea Guina

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)
49 Downloads (Pure)

Abstract

We report on the development of light-trapping architectures applied to thin-film solar cells. In particular, we focus on enhancing the absorption at 1-eV spectral range for dilute nitride and quantum dot materials and report on the influence of planar back reflectors on the photovoltaic properties. Moreover, we discuss the properties of polymer diffraction gratings with enhanced light-trapping capability pointing to advantageous properties of pyramidal gratings. In order to understand the suitability of these polymer grating architectures for space applications, we have performed an electron irradiation study (1 MeV) revealing the absence of reflectance changes up to doses of 1×10 15 e-/cm 2 .
Original languageEnglish
Title of host publication 2019 European Space Power Conference (ESPC)
PublisherIEEE
Number of pages4
ISBN (Electronic)978-1-7281-2126-0
ISBN (Print)978-1-7281-2127-7
DOIs
Publication statusPublished - 2019
Publication typeA4 Article in conference proceedings
EventEuropean Space Power Conference -
Duration: 1 Jan 2000 → …

Conference

ConferenceEuropean Space Power Conference
Period1/01/00 → …

Keywords

  • Solar Cell
  • Semiconducting III-V Materials

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment

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