Fabrication of p-i-n solar cells utilizing ZnlnON by RF magnetron sputtering

Koichi Matsushima, Ryota Shimizu, Tomoaki Ide, Daisuke Yamashita, Hyunwoong Seo, Kazunori Koga, Masaharu Shiratani, Naho Itagaki

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

We succeeded in photovoltaic power generation of p-i-n solar cells utilizing epitaxial ZnlnON film with a wide band gap of 3.1 eV as the intrinsic layer, suitable for a top cell of tandem solar cells. The solar cell shows a high open circuit voltage (Voc) of 1.68 V under solar simulator light irradiation of 3.2 mW/cm2. The solar cell performance becomes worse under 100 mW/cm2, which is mainly attributed to the leakage current caused by crystal defects and grain boundaries. X-ray diffraction analysis reveals that the ZnlnON film has rather large tilt and twist angles and a high dislocation density of 7.62×1010 cm-2. Such low crystallinity is a bottleneck for high performance of the solar cells. Our results demonstrate a potential of epitaxial ZnlnON films as an intrinsic layer of wide band gap p-i-n solar cells with a high Voc.

Original languageEnglish
Pages (from-to)53-57
Number of pages5
JournalMaterials Research Society Symposium Proceedings
Volume1741
Issue numberJanuary
DOIs
Publication statusPublished - Jan 1 2015
Event2014 MRS Fall Meeting - Boston, United States
Duration: Nov 30 2014Dec 5 2014

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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