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