Université de Fribourg

Charge transfer dynamics from organometal halide perovskite to polymeric hole transport materials in hybrid solar cells

Brauer, Jan C. ; Lee, Yong Hui ; Nazeeruddin, Mohammad Khaja ; Banerji, Natalie

In: The Journal of Physical Chemistry Letters, 2015, vol. 6, no. 18, p. 3675–3681

Organometal halide perovskites have emerged as promising next-generation solar cell technologies presenting outstanding efficiencies. However, many questions concerning their working principles remain to be answered. Here, we present a detailed study of hole transfer dynamics into polymeric hole transporting materials (HTMs), poly(triarylamine) (PTAA), poly(3-hexylthiophee-2,5-diyl (P3HT), and...

Université de Fribourg

A new supramolecular route for using rod-coil block copolymers in photovoltaic applications

Sary, Nicolas ; Richard, Fanny ; Brochon, Cyril ; Leclerc, Nicolas ; Lévêque, Patrick ; Audinot, Jean-Nicolas ; Berson, Solenn ; Heiser, Thomas ; Hadziioannou, Georges ; Mezzenga, Raffaele

In: Advanced Materials, 2010, vol. 22, no. 6, p. 763-768

A new polymer blend formed by poly(3-hexylthiophene)-poly(4-vinylpyridine) (P3HT- P4VP) block copolymers and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) is reported. The P4VP and PCBM are mixed together by weak supramolecular interactions, and the resulting materials exhibit microphase separated morphologies of electron-donor and electron-acceptor rich domains. The properties of the blend,...