Associate Professor Goki EDA

B.A., International Christian University; M.Sc., Worcester Polytechnic Institute; Ph.D., Rutgers University; Postdoc, Imperial College London.

Contact Information

Office: S13-02-05
Tel: (65)-6516-2970 | Fax: (65)-6777-6126
Email:  | Personal webpage


ResearcherID: G-1511-2012


Recognitions and Achievements

  • President's Science and Technology Awards 2015


Research Interests

  • Graphene and other 2-dimensional solids
  • Optical and vibrational spectroscopy
  • Charge transport
  • Electronic and optoelectronic devices
  • Intercalation chemistry and colloidal processing


Research Highlight

Our studies have recently found that layered tungsten dichalcogenides such as WS2 and WSe2 undergo indirect-to-direct band gap transition when thinned to a monolayer. The transition results in strongly enhanced photoluminescence from monolayer WS2 and WSe2.


Teaching Contributions

  • CM3232 Physical Chemistry of Solid States and Interface


Representative Publications 

  • Zhao, W. J.; Ghorannevis, Z.; Chu, L. Q.; Toh, M. L.; Kloc, C.; Tan, P. H.; Eda, G. Evolution of Electronic Structure in Atomically Thin Sheets of WS2 and WSe2. ACS Nano 2013, 7, 791-797.
  • Eda, G.; Fujita, T.; Yamaguchi, H.; Voiry, D.; Chen, M. W.; Chhowalla, M. Coherent Atomic and Electronic Heterostructures of Single-Layer MoS2. ACS Nano 2012, 6, 7311-7317.
  • Eda, G.; Yamaguchi, H.; Voiry, D.; Takeshi, F.; Chen, M.; Chhowalla, M. Photoluminescence from chemically exfoliated MoS2. Nano Lett. 2011, 11, 5111-5116.
  • Eda, G.; Chhowalla, M. Graphene Patchwork. ACS Nano 2011, 5, 4265-4268.
  • Wobkenberg, P. H.; Eda, G.; Leem, D. S.; de Mello, J. C.; Bradley, D. D. C.; Chhowalla, M.; Anthopoulos, T. D. Reduced Graphene Oxide Electrodes for Large Area Organic Electronics. Adv. Mater. 2011, 23, 1558-1562.
  • Eda, G.; Chhowalla, M. Chemically Derived Graphene Oxide: Towards Large-Area Thin-Film Electronics and Optoelectronics. Adv. Mater. 2010, 22, 2392-2415.
  • Loh, K. P.; Bao, Q. L.; Eda, G.; Chhowalla, M. Graphene Oxide as a Chemically Tunable Platform for Optical Applications. Nat. Chem. 2010, 2, 1015-1024.
  • Eda, G.; Fanchini, G.; Chhowalla, M. Large-Area Ultrathin Films of Reduced Graphene Oxide as a Transparent and Flexible Electronic Material. Nat. Nanotechnol. 2008, 3, 270-274.