Take a look at the great cover images from the February issues and top five most downloaded articles this month.
In article number 1501873, Mansoo Choi and co-workers demonstrate highly efficient transparent conductive oxide (TCO)-free inverted perovskite (CH3NH3PbI3) solar cells by using a graphene transparent electrode. Careful engineering of the interface between the graphene electrode and the hole transport layer enables the highest energy conversion efficiency of 17.1% among TCO-free solar cells to be obtained.
Solar Water Splitting
For solar water-splitting, hematite (α-Fe2O3) is considered as one of the most promising photoanode materials with a theoretical solar-to-hydrogen efficiency of over ≈15%. However, the multiple electron/hole recombination pathways that occur in the bulk, interfaces, and surfaces largely limit its low-bias performance. In article number 1501840, Xiaolin Zheng and co-workers report a facile and rapid ‘Sol-flame’ approach to simultaneously reduce these recombinations for a hematite nanorods array photoanode, which leads to a greatly enhanced low-bias performance.
Top five most downloaded papers:
by Rebecca J. Sutton, Giles E. Eperon, Laura Miranda, Elizabeth S. Parrott, Brett A. Kamino, Jay B. Patel, Maximilian T. Hörantner, Michael B. Johnston, Amir Abbas Haghighirad, David T. Moore, Henry J. Snaith
by Fei Pei, Taihua An, Jun Zang, Xiaojing Zhao, Xiaoliang Fang, Minseng Zheng, Quanfeng Dong, Nanfeng Zheng
by Long Qie, Chenxi Zu, Arumugam Manthiram
by David Zhitomirsky, Eugene Cho, and Jeffrey C. Grossman
by John B. Cook, Hyung-Seok Kim, Yan Yan, Jesse S. Ko, Shauna Robbennolt, Bruce Dunn, Sarah H. Tolbert