Formation of freestanding two-dimensional carbon nanosheets from poly(phenylcarbyne) through pulsed laser ablation

Min Qian, Yun Shen Zhou, Yang Gao, Jong Bok Park, Tao Feng, Su Mei Huang, Zhuo Sun, Lan Jiang, Yong Feng Lu

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)5117-5123
Number of pages7
JournalCarbon
Volume49
Issue number15
DOIs
StatePublished - Dec 2011

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

Fingerprint

Dive into the research topics of 'Formation of freestanding two-dimensional carbon nanosheets from poly(phenylcarbyne) through pulsed laser ablation'. Together they form a unique fingerprint.

Cite this