Molecular engineering of enamine-based small organic compounds as hole-transporting materials for perovskite solar cells

Maryte Daskeviciene; Sanghyun Paek; Artiom Magomedov; Kyoung Taek Cho; Michael Saliba; Ausra Kizeleviciute; Tadas Malinauskas; Alytis Gruodis; Vygintas Jankauskas; Egidijus Kamarauskas; Mohammad Khaja Nazeeruddin; Vytautas Getautis

doi:10.1039/C8TC06297H

Molecular engineering of enamine-based small organic compounds as hole-transporting materials for perovskite solar cells†

Maryte Daskeviciene,‡^a Sanghyun Paek,

‡^b Artiom Magomedov,

^a Kyoung Taek Cho,

^b Michael Saliba,

^c Ausra Kizeleviciute,^a Tadas Malinauskas,^a Alytis Gruodis,^d Vygintas Jankauskas,^d Egidijus Kamarauskas,^d Mohammad Khaja Nazeeruddin

*^b and Vytautas Getautis

*^a

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* Corresponding authors

^a Department of Organic Chemistry, Kaunas University of Technology, Radvilenu pl. 19, Kaunas, Lithuania
E-mail: vytautas.getautis@ktu.lt

^b Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, Rue de l’Industry 17, Sion, Switzerland
E-mail: mdkhaja.nazeeruddin@epfl.ch

^c Adolphe Merkle Inst, Chemins Verdiers 4, CH-1700 Fribourg, Switzerland

^d Institute of Chemical Physics Vilnius University, Sauletekio al.3, Vilnius LT-10257, Lithuania

Abstract

The search for new classes of hole transporting materials (HTMs) is a very important task on the way towards commercialization of perovskite solar cells (PSCs). In this work, the synthesis and performance in PSCs of new enamine-based HTMs are presented. The synthesis scheme is very short, consisting of only one step, starting from commercially available aromatic amines. Moreover, the reaction does not require metal catalysts and is based on condensation chemistry with water as a by-product. It was shown that PSCs with such materials reach high power conversion efficiencies (PCE), with the highest PCE of 19% achieved for the V1021-based device. This work establishes enamines as a very promising class of materials for application in PSCs.

Journal of Materials Chemistry C

Molecular engineering of enamine-based small organic compounds as hole-transporting materials for perovskite solar cells†

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Molecular engineering of enamine-based small organic compounds as hole-transporting materials for perovskite solar cells

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