Self-Assembled, Nanowire Network Electrodes for Depleted Bulk Heterojunction Solar Cells (pages 1769–1773)
Xinzheng Lan, Jing Bai, Silvia Masala, Susanna M. Thon, Yuan Ren, Illan J. Kramer, Sjoerd Hoogland, Arash Simchi, Ghada I. Koleilat, Daniel Paz-Soldan, Zhijun Ning, André J. Labelle, Jin Young Kim, Ghassan Jabbour and Edward H. Sargent
Article first published online: 6 JAN 2013 | DOI: 10.1002/adma.201203759
Herein, a solution-processed, bottom-up-fabricated, nanowire network electrode is developed. This electrode features a ZnO template which is converted into locally connected, infiltratable, TiO2 nanowires. This new electrode is used to build a depleted bulk heterojunction solar cell employing hybrid-passivated colloidal quantum dots. The new electrode allows the application of a thicker, and thus more light-absorbing, colloidal quantum dot active layer, from which charge extraction of an efficiency comparable to that obtained from a thinner, planar device could be obtained.