RT Journal Article
T1 Zn(ii) versus Ru(ii) phthalocyanine-sensitised solar cells. A comparison between singlet and triplet electron injectors
A1 Listorti, Andrea
A1 López Duarte, Ismael
A1 Martínez Díaz, María Victoria
A1 Torres Cebada, Tomás
A1 Dos Santos Gómez, Tracy Alba
A1 Barnes, Piers R. F.
A1 Durrant, James Robert
AB In this study, the injection efficiencies and photovoltaic device performances for two different phthalocyanine sensitisers—a Zn(II)Pc (TT-1) and a Ru(II)Pc (TT-35) in dye sensitized photoelectrochemical solar cells were compared. These dyes have similar structures and energetics, but differ significantly in their photophysics, with TT-1 exhibiting a reasonably long lived singlet state, whilst TT-35 exhibits rapid intersystem crossing to a long lived triplet state. Time correlated single photon counting (TCSPC) approach and incident photon conversion efficiency (IPCE) measurements were applied to study the injection efficiency of these two Pc dyes. A comparison of the injection efficiency determined by the two independent techniques, TCSPC and IPCE analysis, shows a good agreement. TT-35 shows higher injection efficiency in comparison to TT-1. This result is consistent with the relative energy and lifetime of the TT-35 triplet state compared to the TT-1 singlet excited state. The high injection efficiency and the long electron diffusion length shown by TT-35 make this dye an interesting red absorbing sensitizer for dye solar cells.
PB The Royal Society of Chemistry
SN 1754-5692
YR 2010
FD 2010
LK https://hdl.handle.net/20.500.14352/99892
UL https://hdl.handle.net/20.500.14352/99892
LA eng
NO Listorti A, López-Duarte I, Martínez-Díaz MV, Torres T, DosSantos T, Barnes PRF, et al. Zn(ii) versus Ru(ii) phthalocyanine-sensitised solar cells. A comparison between singlet and triplet electron injectors. Energy Environ Sci 2010;3:1573. https://doi.org/10.1039/c0ee00083
DS Docta Complutense
RD 17 jul 2024