Cover Feature: Rational Design of Cyclopenta[2, 1‐b;3, 4‐b′]dithiophene‐bridged Hole Transporting Materials for Highly Efficient and Stable Perovskite Solar Cells (Energy Technol. 2/2019). Issue 2 (27th February 2019) - Lin, Yan‐Duo
Abstract : From light to electricity : The inside cover picture illustrates the concept of designing hole transporting materials (HTMs) for perovskite solar cells. A subtle change of the central π‐bridge unit can lead to a significant improvement of device performance. In view of their excellent performance, the materials with two‐dimensional structural framework are promising HTMs for efficient and stable perovskite photovoltaic devices. More details can be found in the Full Paper by Yan‐Duo Lin et al. onpage 307 in Issue 2, 2019 (10.1002/ente.201800939 ).