Non‐Basic High‐Performance Molecules for Solution‐Processed Organic Solar Cells

A new small molecule, p-DTS(FBTTh2)2, is designed for incorporation into solution-fabricated high-efficiency organic solar cells. Of primary importance is the incorporation of electron poor heterocycles that are not prone to protonation and thereby enable the incorporation of commonly used interlayers between the organic semiconductor and the charge collecting electrodes. These features have led to the creation of p-DTS(FBTTh2)2/PC71BM solar cells with power conversion efficiencies of up to 7%. 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…

• NR
  National Renewable Energy Laboratory