Original Research Published on 07 Oct 2020 Highly Conductive P-Type MAPbI3 Films and Crystals via Sodium Doping in Inorganic Chemistry Yujiao LiChen LiHuanqin YuBeilei YuanFan XuHaoming WeiBingqiang Cao Frontiers in Chemistry doi 10.3389/fchem.2020.00754 8,568 views 28 citations