1. Materials Department University of California, Santa Barbara Santa Barbara CA 93106 USA
2. The Advanced Light Source Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
3. Electronics Materials and New Energy Laboratory Mitsubishi Chemical Corporation Yokohama R&D Center 1000 Kamoshida‐cho Aoba‐ku Yokohama 227–8502 Japan
4. Department of Chemical Engineering University of California, Santa Barbara Santa Barbara CA 93106 USA