Leading solar fuels research since 1994
 

Welcome!

The Swedish Consortium for Artificial Photosynthesis is a collaborative research environment with the purpose of advancing the science and utilization of solar fuels - fuel from solar energy. We bring together leading scientists with expertise in molecular biology, biophysics and biochemistry, synthetic chemistry and chemical physics.

The Consortium was started in 1994. Since then we have assembled the necessary expertise in an integrated research body, known as the Swedish Consortium for Artificial Photosynthesis.

Here we present who we are and what is going on in our research. We invite anyone who wants to know more about artificial photosynthesis and solar fuels to follow the links to the homepages of our researchers.  

Welcome!

 News

September 25: Adam Wegelius,  Namita Khanna,  Charlène Esmieu,  Giovanni Davide Barone,  Filipe Pinto,  Paula Tamagnini,  Gustav Berggren and Peter Lindblad published an article in Energy & Environmental Science:

Generation of a functional, semisynthetic [Fe-Fe]-hydrogenase in a photosynthetic microorganism.

Abstract:

[FeFe]-Hydrogenases are hydrogen producing metalloenzymes with excellent catalytic capacities, highly relevant in the context of a future hydrogen economy. Here we demonstrate the synthetic activation of a heterologously expressed [FeFe]-hydrogenase in living cells of Synechocystis PCC 6803, a photoautotrophic microbial chassis with high potential for biotechnological energy applications. H2-Evolution assays clearly show that the non-native, semi-synthetic enzyme links to the native metabolism in living cells.


August 13: Belinda Pettersson Rimgard, Jens Föhlinger, Jonas Petersson, Marcus Lundberg, Burkhard Zietz, Ann Marie Woys, Stephen A. Miller, Michael R. Wasielewski and Leif Hammarström  published an article in Chemical Science:

Ultrafast interligand electron transfer in cis-[Ru(4,4′-dicarboxylate-2,2′-bipyridine)2(NCS)2]4− and implications for electron injection limitations in dye sensitized solar cells.

Abstract: Interligand electron transfer (ILET) of the lowest metal-to-ligand charge transfer (MLCT) state of N712 (cis-[Ru(dcb)2(NCS)2]4−, where dcb = 4,4′-dicarboxylate-2,2′-bipyridine) in a deuterated acetonitrile solution has been studied by means of femtosecond transient absorption anisotropy in the mid-IR. Time-independent B3LYP density functional calculations were performed to assign vibrational bands and determine their respective transition dipole moments. 

The transient absorption spectral band at 1327 cm−1, assigned to a symmetric carboxylate stretch, showed significant anisotropy. A rapid anisotropy increase (τ1 ≈ 2 ps) was tentatively assigned to vibrational and solvent relaxation, considering the excess energy available after the excited singlet–triplet conversion. Thereafter, the anisotropy decayed to zero with a time constant τ2 ≈ 240 ps, which was assigned to the rotational correlation time of the complex in deuterated acetonitrile. No other distinctive changes to the anisotropy were observed and the amplitude of the slow component at time zero agrees well with that predicted for a random mixture of MLCT localization on either of the two dcb ligands. The results therefore suggest that MLCT randomization over the two dcb ligands occurs on the sub-ps time scale. This is much faster than proposed by previous reports on the related N3 complex [Benkö et al., J. Phys. Chem. B, 2004, 108, 2862, and Waterland et al., J. Phys. Chem. A, 2001, 105, 4019], but in agreement with that found by Wallin and co-workers [J. Phys. Chem. A, 2005, 109, 4697] for the [Ru(bpy)3]2+ (bpy = 2,2′-bipyridine) complex. This suggests that electron injection from the excited dye into TiO2 in dye-sensitized solar cells is not limited by ILET.


Participants in the CAP workshop in Sigtuna, Sweden, April 26-27, 2018.

Participants in the CAP workshop in Sigtuna, Sweden, April 26-27, 2018.

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Last updated November 17 2018