1. Materials Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USA
2. Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Beijing University of Chemical Technology Beijing 100029 China
3. Department of Chemistry University of California Berkeley CA 94720 USA
4. Department of Mechanical Engineering University of California Berkeley CA 94720 USA
5. The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
6. Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
7. Polymer Science and Engineering Department Conte Center for Polymer Research University of Massachusetts 120 Governors Drive Amherst MA 01003 USA
8. WPI – Advanced Institute for Materials Research (WPI‐AIMR) Tohoku University 2‐1‐1 Katahira Aoba Sendai 980‐8577 Japan