1. Department of Materials Science and Engineering Northwestern University Evanston IL 60208 USA
2. Department of Chemistry Northwestern University Evanston IL 60208 USA
3. Argonne‐Northwestern Solar Energy Research Center Northwestern University Evanston IL 60208 USA
4. Institute of Materials Research and Engineering (IMRE) Agency of Science, Technology and Research (A*STAR) Fusionopolis Way, Innovis, #08‐03 Singapore 138634 Singapore
5. Chemical Sciences and Engineering Division Argonne National Laboratory 9700 S. Cass Ave. Lemont IL 60439 USA
6. Polyera Corporation Skokie IL 60077 USA