Статья

Low-Temperature Processed Electron Collection Layers of Graphene/TiO<sub>2</sub> Nanocomposites in Thin Film Perovskite Solar Cells

Jacob Tse‐Wei WangDepartment of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United KingdomJames M. BallDepartment of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United KingdomEva M. BareaPhotovoltaic and Optoelectronic Devices Group, Department de Física, Universitat Jaume I, 12071 Castelló, SpainAntonio AbateDepartment of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United KingdomJack Alexander-WebberDepartment of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United KingdomJian HuangDepartment of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United KingdomMichael SalibaDepartment of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United KingdomIván Mora‐SeróPhotovoltaic and Optoelectronic Devices Group, Department de Física, Universitat Jaume I, 12071 Castelló, SpainJuan BisquertPhotovoltaic and Optoelectronic Devices Group, Department de Física, Universitat Jaume I, 12071 Castelló, SpainHenry J. SnaithDepartment of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United KingdomR. J. NicholasDepartment of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom

2013en

ABI

Аннотация

The highest efficiencies in solution-processable perovskite-based solar cells have been achieved using an electron collection layer that requires sintering at 500 °C. This is unfavorable for low-cost production, applications on plastic substrates, and multijunction device architectures. Here we report a low-cost, solution-based deposition procedure utilizing nanocomposites of graphene and TiO2 nanoparticles as the electron collection layers in meso-superstructured perovskite solar cells. The graphene nanoflakes provide superior charge-collection in the nanocomposites, enabling the entire device to be fabricated at temperatures no higher than 150 °C. These solar cells show remarkable photovoltaic performance with a power conversion efficiency up to 15.6%. This work demonstrates that graphene/metal oxide nanocomposites have the potential to contribute significantly toward the development of low-cost solar cells.

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Идентификаторы

DOI: 10.1021/nl403997a

Цитирования и источники

Цитирований: 4Использованных источников: 0

Показатели — AkademScholar