Po-Hsun Huang,a Chung Yu Chan,b Peng Li,c Yuqi Wang,b Nitesh Nama,b Hunter Bachmana and Tony Jun Huang*a
a Department of Mechanical Engineering and Materials Science, Duke University, Durham, USA
b Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, USA
c Department of Chemistry, West Virginia University, Morgantown, USA