1. Department of Physics University of California, Berkeley Berkeley CA 94720 USA
2. Department of Chemistry University of Nebraska Lincoln NE 68588 USA
3. Nebraska Center for Materials and Nanoscience University of Nebraska‐Lincoln Lincoln NE 68588 USA
4. Walker Department of Mechanical Engineering University of Texas Austin TX 78712 USA
5. Oden Institute for Computational Engineering and Sciences University of Texas at Austin Austin TX 78712 USA
6. Center for Functional Nanomaterials Brookhaven National Laboratory Upton NY 11973 USA
7. Materials Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
8. Kavli Energy NanoSciences Institute at the University of California Berkeley and the Lawrence Berkeley National Laboratory Berkeley CA 94720 USA