1. Department of Mechanical Science and Engineering University of Illinois at Urbana‐Champaign Urbana IL 61801 USA
2. Singapore Centre for 3D Printing School of Mechanical and Aerospace Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
3. Department of Electrical and Computer Engineering University of Illinois at Urbana‐Champaign Urbana IL 61801 USA
4. Materials Research Laboratory University of Illinois at Urbana‐Champaign Urbana IL 61801 USA
5. International Institute for Carbon Neutral Energy Research (WPI‐I2CNER) Kyushu University 744 Moto‐oka Nishi‐ku Fukuoka 819‐0395 Japan