Welcome

Two Dimensional Materials Research Group is led by Dr. Lain-Jong Li (Lance Li) at Institute of Atomic and Molecular Sciences, Academia Sinica , Taiwan. We are focusing on exploring fundamentals and applications of graphitic carbon materials, including carbon nanotubes and graphene.

          

Carbon Nanotubes

Transistors: Full semiconducting SWNT network transistor device yield was achieved by solution processed SWNTs. Mobility up to 10  cm2/Vs.                                 (Chem. Comm. 2009) ( Adv. Mater.  2010)

 

Single Chirality of semiconducting tubes: using fluorene polymer to selectively wrap (7,5) SWNTs                      (Nano Lett. 2007)

Graphene

Direct Growth on Insulators:                          (Nano Lett.  2011)

 

Band Gap Opening with Molecular Doping:  electrical On/Off current is improved and band gap is up to 110 meV.  (ACS Nano  2011)

 

Symmetry breaking: G-phonon splitting was induced by from molecular adsorption on graphene (Phy. Rev. Lett  2009)

Dirac point shift of CVD-grown graphene can be used to detect DNA hybridization (down to 10 pM)   (Adv. Mater.  2010)

 

Graphene Oxide

Electrochemical Exfoliation to obtain high quality graphene sheets  (ACS Nano   2011)

Movie Clip Available

 

Largest graphene oxide single layer( 3mm in lateral size) obtained from solution processes.                     (Chem. Mater.  2009)

 

Graphitic domain size in reduced graphene oxide sheet ?                        (ACS Nano 2010)