A Simple and Universal Method to Increase Light Absorption in Ternary Blend Polymer Solar Cells Based on Ladder‐Type Polymers

A ternary blend approach to enhance light harvesting is reported by utilizing ladder-type donor polymers with complementary absorption in polymer solar cells. The broader absorption range can be universally achieved by blending individual ladder-type polymers without changes to their electronic properties and morphologies with boosted photocurrent in photovoltaic devices. This method presents a universal and efficient way to absorb wide-spectrum light by using simple processing conditions. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to 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.