A High‐Efficiency Panchromatic Squaraine Sensitizer for Dye‐Sensitized Solar Cells

Abstract

Squarely efficient: A squaraine sensitizer (see picture) shows an outstanding power conversion efficiency of 6.74 % in liquid dye-sensitized solar cells and 2.69 % in solid-state dye-sensitized solar cells. The high efficiencies are related to both the bathochromic shift of the absorption maximum compared to other squaraine sensitizers, and to the presence of additional absorptions that lead to high absorptivity over much of the visible spectrum. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.