1. Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
2. Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
3. Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
4. Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
5. International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka, Japan