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Study of TiO2/Graphene-based nanocomposites for perovskite solar cells: Synthesis and Properties

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HAL Id: cea-02341953

https://hal-cea.archives-ouvertes.fr/cea-02341953

Submitted on 31 Oct 2019

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Study of TiO2/Graphene-based nanocomposites for

perovskite solar cells: Synthesis and Properties

Nathalie Herlin-Boime, Johann Bouclé, Pr Ratier, Raphaëlle Belchi, Aurélie

Habert

To cite this version:

Nathalie Herlin-Boime, Johann Bouclé, Pr Ratier, Raphaëlle Belchi, Aurélie Habert. Study of TiO2/Graphene-based nanocomposites for perovskite solar cells: Synthesis and Properties. FIM-PART’17, Jul 2017, Bordeaux, France. �cea-02341953�

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Abstract FIMPART 9-12th July 2017

ID: 26/Oct/18/29/33/PP1968 Topic: Materials for Energy

Study of TiO2/Graphene-based nanocomposites for perovskite solar cells: Synthesis and Properties

Since 2012, hybrid solar cells based on perovskite materials demonstrated several significant advances, with power conversion efficiencies now up to 22%, attracting strong interest within the scientific community. Still, efforts remain to be performed to improve photo-current generation, especially concerning the development of efficient and reliable charge transporting electrodes and selective contacts.

We recently demonstrated a significant increase in efficiency for solid-state dye-sensitized solar cells by incorporating carbon nanotubes in the TiO2 mesoporous electrode. In this context, the use of

composites based on TiO2 nanoparticles and carbon nano-objects is a relevant strategy towards more

efficient electron collection, if interfacial properties between both components can be finely tuned. Taking benefit from specific know-hows on both perovskite solar cell processing (state-of-the-art efficiencies) and production of specific nano-scaled materials, we aim at developing high quality TiO2/carbon-based nanocomposites for an optimal energy conversion in perovskite solar cells.

The first line of our current research is the synthesis and optimization of TiO2/graphene

based-nanocomposites, using the original technique of laser pyrolysis, in order to achieve well-controlled physical properties suitable for efficient and stable cells. Particular attention is paid to synthesis conditions and correlated materials as well as final solar cells properties. Our presentation will be then focused on the nanocomposites characterization such as morphological and structural analysis, TiO2/graphene interface analysis, physical properties evaluation and their role and effects within

perovskite solar cells.

Affiliations:

Univ. Limoges, CNRS, XLIM, UMR 7252, F-87000 Limoges, France

NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay 91191 Gif-sur-Yvette France Contact details :

Dr. Nathalie Herlin-Boime

CEA IRAMIS NIMBE LEDNA – UMR 3685 Bât 522 CEA Saclay

91191 Gif/Yvette Cedex Tel : +33 (0)1 69 08 36 84 Email : nathalie.herlin@cea.fr

Dr. Johann Bouclé

XLIM UMR 7252 Université de Limoges/CNRS 123 Avenue Albert Thomas

87060 Limoges Cedex, France

Tel : +33 (0)5 87 50 67 62 – Fax : +33 (0)5 55 45 76 49 Email : johann.boucle@unilim.fr

Pr. Bernard Ratier

XLIM UMR 7252 Université de Limoges/CNRS

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123 Avenue Albert Thomas 87060 Limoges, Cedex, France

Tel : +33 (0)5 87 50 67 44 – Fax : +33 (0)5 55 45 76 49 Email : bernard.ratier@unilim.fr

Raphaëlle Belchi PhD Student CEA Saclay

CEA IRAMIS NIMBE LEDNA – UMR 3685 Bât 522 CEA Saclay

91191 Gif/Yvette Cedex Tel : +33 (0)1 69 08 69 16 Email : raphaelle.belchi@cea.fr

Aurélie Habert

CEA IRAMIS NIMBE LEDNA – UMR 3685 Bât 522 CEA Saclay

91191 Gif/Yvette Cedex Tel : +33 (0) 1 69 08 17 02 Email : aurelie.habert@cea.fr

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