A Nonfullerene Small Molecule Acceptor with 3D Interlocking Geometry Enabling Efficient Organic Solar Cells

Jaewon Lee; Ranbir Singh; Dong Hun Sin; Heung Gyu Kim; Kyu Chan Song; Kilwon Cho

doi:10.1002/adma.201504010

A Nonfullerene Small Molecule Acceptor with 3D Interlocking Geometry Enabling Efficient Organic Solar Cells

Adv Mater. 2016 Jan 6;28(1):69-76. doi: 10.1002/adma.201504010. Epub 2015 Nov 5.

Authors

Jaewon Lee¹, Ranbir Singh¹, Dong Hun Sin¹, Heung Gyu Kim¹, Kyu Chan Song¹, Kilwon Cho¹

Affiliation

¹ Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea.

PMID: 26539752
DOI: 10.1002/adma.201504010

Abstract

A new 3D nonfullerene small-molecule acceptor is reported. The 3D interlocking geometry of the small-molecule acceptor enables uniform molecular conformation and strong intermolecular connectivity, facilitating favorable nanoscale phase separation and electron charge transfer. By employing both a novel polymer donor and a nonfullerene small-molecule acceptor in the solution-processed organic solar cells, a high-power conversion efficiency of close to 6% is demonstrated.

Keywords: 3D interlocking; nonfullerene acceptors; organic solar cells; perylene diimides.