1. Department of Mechanical Science and Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
2. Department of Civil and Environmental Engineering, Mechanical Engineering, Materials Science and Engineering, and Center for Bio-Integrated Electronics, Northwestern University, Evanston, Illinois 60208, United States
3. Department of Aerospace Engineering, Pennsylvania State University, State College, Pennsylvania 16802, United States
4. Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
5. School of Naval Architecture, Ocean and Civil Engineering (State Key Laboratory of Ocean Engineering), Shanghai Jiaotong University, Shanghai 200000, China
6. Center for Flexible Electronics Technology and Center for Mechanics and Materials; AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
7. Center for Bio-Integrated Electronics, Department of Materials Science and Engineering, Biomedical Engineering, Chemistry, Mechanical Engineering, Electrical Engineering, and Computer Science, and Neurological Surgery, Simpson Querrey Institute for Nano/biotechnology, McCormick School of Engineering, and Feinberg School of Medicine, Northwestern University, Evanston, Illinois 60208, United States
8. Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States