TY - JOUR
T1 - Formation of freestanding two-dimensional carbon nanosheets from poly(phenylcarbyne) through pulsed laser ablation
AU - Qian, Min
AU - Zhou, Yun Shen
AU - Gao, Yang
AU - Park, Jong Bok
AU - Feng, Tao
AU - Huang, Su Mei
AU - Sun, Zhuo
AU - Jiang, Lan
AU - Lu, Yong Feng
PY - 2011/12
Y1 - 2011/12
N2 - Freestanding, two-dimensional (2D), amorphous carbon nanosheets (CNSs) were formed from a preceramic polymer, poly(phenylcarbyne), through laser ablation using a pulsed Nd: YAG laser. CNSs of several nanometers in thickness and micrometers in size were obtained. The polymer-to-carbon transition was investigated at different laser fluences and target-to-substrate distances. Three different phases, amorphous carbon, ultrathin amorphous CNSs, and thick carbon films, were obtained as the laser fluence increased. The pulsed-laser-induced formation of the 2D CNSs includes three steps: ablation, carbonization, and landing. This study reveals an existing route of forming freestanding 2D CNSs through pulsed laser ablation.
AB - Freestanding, two-dimensional (2D), amorphous carbon nanosheets (CNSs) were formed from a preceramic polymer, poly(phenylcarbyne), through laser ablation using a pulsed Nd: YAG laser. CNSs of several nanometers in thickness and micrometers in size were obtained. The polymer-to-carbon transition was investigated at different laser fluences and target-to-substrate distances. Three different phases, amorphous carbon, ultrathin amorphous CNSs, and thick carbon films, were obtained as the laser fluence increased. The pulsed-laser-induced formation of the 2D CNSs includes three steps: ablation, carbonization, and landing. This study reveals an existing route of forming freestanding 2D CNSs through pulsed laser ablation.
UR - https://www.scopus.com/pages/publications/84857033373
U2 - 10.1016/j.carbon.2011.06.096
DO - 10.1016/j.carbon.2011.06.096
M3 - 文章
AN - SCOPUS:84857033373
SN - 0008-6223
VL - 49
SP - 5117
EP - 5123
JO - Carbon
JF - Carbon
IS - 15
ER -