Fully Solution‐Processed n–i–p‐Like Perovskite Solar Cells with Planar Junction: How the Charge Extracting Layer Determines the Open‐Circuit Voltage. Issue 15 (23rd January 2017)

• Record Type: Journal Article
• Authors: Tao, Chen; Van Der Velden, Jeroen; Cabau, Lydia; Montcada, Nuria F.; Neutzner, Stefanie; Srimath Kandada, Ajay Ram; Marras, Sergio; Brambilla, Luigi; Tommasini, Matteo; Xu, Weidong; Sorrentino, Roberto; Perinot, Andrea; Caironi, Mario; Bertarelli, Chiara; Palomares, Emilio; Petrozza, Annamaria
• Is Part Of: Advanced materials. Volume 29:Issue 15(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-01-23
• Subjects: interface engineering -- open‐circuit voltage -- perovskite solar cells -- planar junctions -- solution process; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201604493
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : Fully solution‐processed direct perovskite solar cells with a planar junction are realized by incorporating a cross‐linked [6, 6]‐phenyl‐C61‐butyric styryl dendron ester layer as an electron extracting layer. Power conversion efficiencies close to 19% and an open‐circuit voltage exceeding 1.1 V with negligible hysteresis are delivered. A perovskite film with superb optoelectronic qualities is grown, which reduces carrier recombination losses and hence increases V oc .