1. Ramanujan Fellow (2020) 

Indian Institute of Technology, Kanpur-208016, India

2. Japan Society for the Promotion of Science (JSPS) Fellow (Standard: FY 2018) (2018 – 2020) 

Department of Electrical & Electronic Information Engineering, Toyohashi University of Technology (TUT), Toyohashi- 441-8580, Aichi, Japan

3. São Paulo Research Foundation (FAPESP) Postdoctoral Fellow (2018) 

Department of Physics, Faculty of Science and Technology, State University of Sao Paulo (UNESP), Presidente Prudente-19060-900, Sao Paulo, Brazil

4. Postdoctoral Fellow (CNPq)/ Visiting Scientist (2015 – 2017) 

Centre for Semiconductor Components & Nanotechnology (CCS Nano), University of Campinas (UNICAMP), Campinas 13083-870, Sao Paulo, Brazil

5. Research Professor (Brain Korea 21 PLUS) (2014) 

Department of Materials Science and Engineering, Yonsei University-143-747, Seoul, South Korea

6. Postdoctoral Researcher (2012 – 2014) 

Graphene Research Centre, KAIST Institute for NanoCentury, Korea Advanced Institute of Science and Technology (KAIST)-34141, Daejeon, South Korea