Selective synthesis of Sb2S3 nanoneedles and nanoflowers for high performance rigid and flexible photodetectors Junfeng Chao, Bo Liang, Xiaojuan Hou, Zhe Liu, Zhong Xie, Bin Liu, Weifeng Song, Gui Chen, Di Chen*, Guozhen Shen, Optics Express, 2013, 21,13639-13647.