Reticulated Heterojunctions for Photovoltaic Devices (pages 7909–7912)
Dr. Alon A. Gorodetsky, Chien-Yang Chiu, Dr. Theanne Schiros, Dr. Matteo Palma, Marshall Cox, Zhang Jia, Wesley Sattler, Prof. Ioannis Kymissis, Dr. Michael Steigerwald and Prof. Colin Nuckolls
Article first published online: 16 SEP 2010 | DOI: 10.1002/anie.201004055
An organic semiconductor device is formed by the self-assembly on a transparent electrode surface. The donor (see picture; dibenzotetrathienocoronene, yellow layer) deposits as supramolecular cables, and the acceptor (C60, orange) subsequently infiltrates this network. This network provides a donor–acceptor interface that is interwoven at the nanoscale. When incorporated into a solar cell, the active layer provides large increases in power conversion efficiencies.