• openAccess   Assessing the Drawbacks and Benefits of Ion Migration in Lead Halide Perovskites 

      Sakhatskyi, Kostiantyn; John, Rohit Abraham; Guerrero, Antonio; Tsarev, Sergey; Sabisch, Sebastian; Das, Tisita; Matt, Gebhard J.; Yakunin, Sergii; Cherniukh, Ihor; Kotyrba, Martin; Berezovska, Yuliia; Bodnarchuk, Maryna; Chakraborty, Sudip; Bisquert, Juan; Kovalenko, Maksym V. American Chemical Society (2022-10-14)
      Since the inception of the unprecedented rise of halide perovskites for photovoltaic research, ion migration has shadowed this material class with undesirable hysteresis and degradation effects, limiting its practical ...
    • closedAccess   Suppressing Nonradiative Recombination in Lead–Tin Perovskite Solar Cells through Bulk and Surface Passivation to Reduce Open Circuit Voltage Losses 

      Zhang, Kaicheng; Späth, Andreas; Almora Rodríguez, Osbel; Le Corre, Vincent; Wortmann, Jonas; Zhang, Jiyun; Xie, Zhiqiang; Barabash, Anastasia; Hammer, Maria S.; Heumüller, Thomas; Min, Jie; Fink, Rainer H.; Lüer, Larry; Li, Ning; Brabec, Christoph J. American Chemical Society (2022-10-14)
      Lead–Tin perovskite solar cells (Pb/Sn PSCs) are limited by the intrinsic instability of Sn(II), which tends to oxidize forming Sn vacancies in perovskite films. Herein, a Lewis base β-guanidinopropionic acid (GUA) and ...