Doping of [In2(phen)3Cl6]·CH3CN·2H2O Indium‐Based Metal–Organic Framework into Hole Transport Layer for Enhancing Perovskite Solar Cell Efficiencies. Issue 12 (26th April 2018) - Li, Mengru; Xia, Debin; Yang, Yulin; Du, Xi; Dong, Guohua; Jiang, Aifeng; Fan, Ruiqing