Molecular Engineering Using an Anthanthrone Dye for Low-Cost Hole Transport Materials: A Strategy for Dopant-Free, High-Efficiency, and Stable Perovskite Solar Cells - Hong,DP; Thu,TD; Kim,J; Charbonneau,C; Manzhos,S; Feron,K; Tsoi,WC; Durrant,JR; Jain,SM; Sonar,P (ADVANCED ENERGY MATERIALS, 2018)