Université de Fribourg

Engineering metal oxides for UV-stable perovskite solar cells

Roose, Bart ; Steiner, Ullrich (Dir.)

Thèse de doctorat : Université de Fribourg, 2017 ; no. 2015.

This thesis is a study of the role of the metal oxide electron transporting material in perovskite solar cells. The central research question is how the metal oxide influences the stability of perovskite solar cells and how the metal oxide can be modified to improve the stability. The thesis begins by providing four background chapters. Chapter 1 explains the need for solar energy and what...

Université de Fribourg

A Ga-doped SnO2 mesoporous contact for UV stable highly efficient perovskite solar cells

Roose, Bart ; Johansen, Christian M. ; Dupraz, Kevin ; Jaouen, Thomas ; Aebi, Philipp ; Steiner, Ullrich ; Abate, Antonio

In: Journal of Materials Chemistry A, 2018, vol. 6, no. 4, p. 1850–1857

Increasing the stability of perovskite solar cells is a major challenge for commercialization. The highest efficiencies so far have been achieved in perovskite solar cells employing mesoporous TiO2 (m-TiO2). One of the major causes of performance loss in these m-TiO2-based perovskite solar cells is induced by UV- radiation. This UV instability can be solved by replacing TiO2 with SnO2; thus ...