Cai Min, Xiao Teng, Hellerich Emily, Chen Ying, Shinar Ruth, Shinar Joseph
Ames Laboratory-USDOE, and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA.
Adv Mater. 2011 Aug 16;23(31):3590-6. doi: 10.1002/adma.201101154. Epub 2011 Jul 4.