Experimental and theoretical evidence for hydrogen doping in polymer solution-processed indium gallium oxide Wei Huang, Po-Hsiu Chien, Kyle McMillen, Sawankumar Patel, Joshua Tedesco, Li Zeng, Subhrangsu Mukherjee, Binghao Wang, Yao Chen, Gang Wang, Yang Wang, Yanshan Gao, Michael J. Bedzyk, Dean M. DeLongchamp, Yan-Yan Hu, Julia E. Medvedeva, Tobin J. Marks, Antonio Facchetti Proceedings of the National Academy of Sciences Jul 2020, 202007897; DOI: 10.1073/pnas.2007897117