1. Cooperative Effect of GO and Glucose on PEDOT:PSS for High V OC and Hysteresis-Free Solution-Processed Perovskite Solar Cells
- Author
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Andrea Liscio, Silvia Colella, Simone Dell'Elce, Alessandro Kovtun, Emanuele Treossi, Antonella Giuri, Sofia Masi, Andrea Listorti, Carola Esposito Corcione, Aurora Rizzo, Giuri, Antonella, Masi, Sofia, Colella, Silvia, Kovtun, Alessandro, Dell'Elce, Simone, Treossi, Emanuele, Liscio, Andrea, Esposito Corcione, Carola, Rizzo, Aurora, Listorti, Andrea, and ESPOSITO CORCIONE, Carola
- Subjects
Materials science ,EFFICIENCY ,PHOTOELECTRON-SPECTROSCOPY ,graphene oxide reduction ,Oxide ,wettability ,Nanotechnology ,02 engineering and technology ,Condensed Matter Physic ,Conductivity ,010402 general chemistry ,01 natural sciences ,7. Clean energy ,law.invention ,Biomaterials ,chemistry.chemical_compound ,PEDOT:PSS ,law ,LOW-TEMPERATURE ,Electrochemistry ,glucose ,Perovskite (structure) ,Nanocomposite ,Graphene ,Electronic, Optical and Magnetic Material ,Photovoltaic system ,Energy conversion efficiency ,PERFORMANCE ,PEDOT:PSS nanocomposite ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,perovskite solar cell ,Biomaterial ,HALIDE PEROVSKITES ,0104 chemical sciences ,Electronic, Optical and Magnetic Materials ,GRAPHITE OXIDE ,REDUCTION ,chemistry ,Chemical engineering ,LAYER ,0210 nano-technology ,CHARGE ,REDUCED GRAPHENE OXIDE - Abstract
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 (MAPbI(3)) 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 MAPbI(3) solar cells displaying a approximate to 37% improvement in power conversion efficiency if compared to a device grown onto pristine PEDOT:PSS. Most importantly, V-OC reaches values over 1.05 V that are among the highest ever reported for PEDOT:PSS p-i-n device architecture, suggesting minimal recombination losses, high hole-selectivity, and reduced trap density at the PEDOT:PSS along with optimized MAPbI(3) coverage.
- Published
- 2016
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