Di(p-methoxyphenyl)amine end-capped tri(p-thiophenylphenyl)amine based molecular glasses as hole transporting materials for solid-state dye-sensitized solar cells

Thanh-Tuan Bui (1) , Said Karim Shah (2) , Xavier Sallenave (1) , Mamatimin Abbas (2) , Gjergji Sini (1) , Lionel Hirsch (2) , Fabrice Goubard (2)

1 LPPI - Laboratoire de Physico-chimie des Polymères et des Interfaces
2 IMS - Laboratoire de l'intégration, du matériau au système

Three tris(thienylphenyl)amine-based molecular glass hole transporting materials were synthetized, characterized and incorporated in solid state dye-sensitized solar cells. Devices using these compounds as solid hole conductors show relatively high V oc thanks to good energy level matching between them and the associated D102 indoline dye. However, they yield relatively low J sc and FF compared to Spiro-OMeTAD based control devices, which is due to an order of magnitude lower conductivity with respect to Spiro-OMeTAD. Maximum solar-to-electrical energy conversion efficiencies of 1.2% under standard illumination condition was obtained. Stability tests of unsealed devices in air under continuous illumination have been performed and devices based on new compounds have kept up to 80% of their initial efficiency.

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Thanh-Tuan Bui, Said Karim Shah, Xavier Sallenave, Mamatimin Abbas, Gjergji Sini, et al.. Di(p-methoxyphenyl)amine end-capped tri(p-thiophenylphenyl)amine based molecular glasses as hole transporting materials for solid-state dye-sensitized solar cells. RSC Advances, 2015, 5 (61), pp.49590-49597. ⟨10.1039/c5ra07226c⟩. ⟨hal-01534909⟩