MICRO NANO LETTERS
NG J, CHEN Q, XIE YH, WANG A, WU TR
ADVANCED SCIENCE
LU GY, WU TR, YANG P, YANG YC, JIN ZH, CHEN WB, JIA S, WANG HM, ZHANG GH, SUN JL, AJAYAN PM, LOU J, XIE XM, JIANG MH