Yu Yan, Gu Lin, Lang Xingyou, Zhu Changbao, Fujita Takeshi, Chen MingWei, Maier Joachim
School of Materials Science and Engineering, Beihang University, Xueyuan Road 37#, Haidian District, Beijing 100191, P. R. China.
Adv Mater. 2011 Jun 3;23(21):2443-7. doi: 10.1002/adma.201004331. Epub 2011 Apr 12.