Scientists in the US and Sweden have produced a highly transparent and flexible paper that they coated with tin-doped indium oxide to make it conductive, so it can be used as a substrate for flexible solar cells. The material can be produced on a large scale at low cost, with an environmentally friendly, solution-based process.
Read more about this exciting research in this HOT EES article:
Transparent and Conductive Paper From Nanocellulose Fibers
Liangbing Hu, Guangyuan Zheng, Jie Yao, Nian Liu, Ben Daniel Weil, Yi Cui , Martin Eskilsson, Erdem Karabulut, Lars Wagberg, Zhichao Ruan, Shanhui Fan, Jason Bloking and Michael D. McGehee
DOI: 10.1039/C2EE23635D