Mikko Hakala 's List: pv_perovskites

- Articles citing Snaith's perspective

- CH3NH3PbI3
- Optical resonant Raman experiments.
- DFT simulations of the same with periodic and model systems.
- Bending and streetching modes of Pb-I bonds -> diagnostics of the inorganic cage
- torsional modes of cations as markers for orientational disorder of the material

Quote: "Dr Snaith, the only UK-based scientist on the list, was selected for his work developing cheap and efficient perovksite-base solar cells, which can be integrated into the glass facades of buildings. The efficiencies of these solar cells have reached over 15% this year, overtaking other emerging solar technologies which have yet to break the 14% barrier despite decades of research. The semi-transparent nature of the perovskite cells also makes them more versatile and attractive to building designers."

- JACS
- Until now, contained only organic hole conducting materials (e.g. spiro-OMeTAD), which are expensive and with low conductivity.
- The paper shows CuI as an alternative.

- Phys.org news on JACS article "An Inorganic Hole Conductor for ..."

- Graetzel et al.
- proposes a new sandwith structure with organic charge-transfer layers (instead of structure with Al2O3, TiO2 or ZrO2)
- sublimed CH3NH3PbI3 perovskite layers, studied with GIXRD

- Gratzel et al.
- Phys.org news on Nature Photonics article "Perovskite solar cells..."

- Snaith's cell: methylammonium lead iodide chloride, 15% eff.
- Changing balance of Cl and I could increase eff. to 29%
- Important: to find alternatives to avoid toxic Pb.

CH3NH3PbX3 (X = Cl, Br, I)

- By Henry J. Snaith, Clarendon Laboratory, J. Phys. Chem. Lett., 2013, 4 (21), pp 3623-3630
- review and perspective
- stability of the perovskite-based technology still a challenge

Oxford Photovoltaics company using perovskites