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Hybrid organic–inorganic halide perovskites have emerged at the forefront of solution‐processable photovoltaic devices. Being the perovskite precursor mixture a complex equilibrium of species, it is very difficult to predict/control their interactions with different substrates, thus the final film properties and device performances. Here the wettability of CH3NH3PbI3 (MAPbI3) onto poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) hole transporting layer is improved by exploiting the cooperative effect of graphene oxide (GO) and glucose inclusion. The glucose, in addition, triggers the reduction of GO, enhancing the conductivity of the PEDOT:PSS+GO+glucose based nanocomposite. The relevance of this approach toward photovoltaic applications is demonstrated by fabricating a hysteresis‐free MAPbI3 solar cells displaying a ≈37% improvement in power conversion efficiency if compared to a …
Publication date: 
1 Oct 2016

Antonella Giuri, Sofia Masi, Silvia Colella, Alessandro Kovtun, Simone Dell'Elce, Emanuele Treossi, Andrea Liscio, Carola Esposito Corcione, Aurora Rizzo, Andrea Listorti

Biblio References: 
Volume: 26 Issue: 38 Pages: 6985-6994
Advanced Functional Materials