One challenge of working on hybrid halide perovskites is that the field is moving so rapidly. A second is that there are just too many publications. A third is that many of the older papers use different nomenclature so that it can be difficult to discover them. I started a Mendeley group to track papers, and I think we have done a decent job on the older literature (especially in the key work from the 1980s and 90s). In 2014, there were over 400 publications on CH3NH3PbI3, and there are likely to be over 1000 in 2015 alone, so it is almost impossible to absorb all available information.
From a Web of Science search for “hybrid perovskite OR MAPI OR CH3NH3PbI3 solar cell” with 1564 results – 28th May 2015
Here is a suggested reading list to get started:
1. Dynamic disorder in methylammoniumtrihalogenoplumbates (II) observed by millimeter‐wave spectroscopy (Journal of Chemical Physics, 1987) – Weber reported methylammonium lead iodide in 1978, but the interesting characterisation started here, with the first evidence for disorder due to molecular dipoles.
2. Calorimetric and IR spectroscopic studies of phase transitions in methylammonium trihalogenoplumbates (Journal of Physics and Chemistry of Solids, 1990) – The PhD thesis of Noriko Onoda-Yamamuro is a gold-mine of useful information and careful measurements. It began with a report of the heat capacity and IR spectrum.
3. Conducting tin halides with a layered organic-based perovskite structure (Nature, 1994) – David Mitzi kickstarted interest in the optoelectronic properties of organic-inorganic perovskites beginning here and publishing another 30 or so papers in the following decade.
4. Templating and structural engineering in organic–inorganic perovskites (Dalton Transaction, 2001) – Back to David Mitzi for a review on the chemical and structural diversity of this family of compounds.
5. Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells (JACS, 2009) – The first solar cell from Japan, but note the substantial effort that had been put into developing these materials in advance.
6. Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites (Science, 2012) – The first high-efficiency solid-state solar cell from Henry Snaith FRS and the point in time when the world took notice.
7. Atomistic Origins of High-Performance in Hybrid Halide Perovskite Solar Cells (Nano Letters, 2014) – Essentially a think piece, trying to link experimental observations with theory, and the first suggestion that lattice polarisation is important for the photovoltaic action.
8. Compositional engineering of perovskite materials for high-performance solar cells (Nature, 2015) – Things have progressed since 2012 with solar cells made with a variety of materials in a range of architectures. Sang Il Seok’s group hold the record and it is with the complex formulation of meythlammonium/formamidinium – lead – iodide/bromide.
I wouldn’t recommend to start with reading about device hysteresis. While the case is almost closed in my opinion, there is no definitive publication yet (just plenty of data and speculation).
For research, 2014 has been an extremely fun year. There have been many new projects going in unexpected directions, which keeps things fresh and interesting. My research group composition has been changing too (Out: Lee to Kytoto, Davide to Oxford and Rachel to Queen Mary; In: Suzy from York, Ruoxi from Fudan, Katrine from Aarhus), which alters the dynamic. There is no such thing as a quiet or normal week.
Publications from 2014:
- Automated procedure to determine the thermodynamic stability of a material and the range of chemical potentials necessary for its formation relative to competing phases and compounds
- Electronic structure and band alignment of zinc nitride, Zn3N2 (OA)
- From kesterite to stannite photovoltaics: Stability and band gaps of the Cu2(Zn,Fe)SnS4 alloy (OA)
- N incorporation and associated localized vibrational modes in GaSb
- Prediction of Electron Energies in Metal Oxides (OA)
- Three-electron two-centred bonds and the stabilisation of cationic sulfur radicals (OA)
- Crystal electron binding energy and surface work function control of tin dioxide
- Defect chemistry of Ti and Fe impurities and aggregates in Al2O3 (OA)
- Computational screening of structural and compositional factors for electrically conductive coordination polymers (OA)
- Relativistic quasiparticle self-consistent electronic structure of hybrid halide perovskite photovoltaic absorbers
- Ultra-thin oxide films for band engineering: design principles and numerical experiments
- Ab initio thermodynamic model of Cu2ZnSnS4 (OA)
- Atomistic Origins of High-Performance in Hybrid Halide Perovskite Solar Cells (OA)
- Thermal physics of the lead chalcogenides PbS, PbSe, and PbTe from first principles
- Origin of deep subgap states in amorphous indium gallium zinc oxide: Chemically disordered coordination of oxygen
- Design of I2−II−IV−VI4 Semiconductors through Element Substitution: The Thermodynamic Stability Limit and Chemical Trend
- Electronic Chemical Potentials of Porous Metal−Organic Frameworks (OA)
- Ellipsometric characterization and density-functional theory analysis of anisotropic optical properties of single-crystal SnS
- Molecular ferroelectric contributions to anomalous hysteresis in hybrid perovskite solar cells (OA)
- Identification of critical stacking faults in thin-film CdTe solar cells
- Stacking-dependent energetics and electronic structure of ultrathin polymorphic V2VI3 topological insulator nanofilms
- Ligand design for long-range magnetic order in metal–organic frameworks (OA)
- Transferable Force Field for Metal−Organic Frameworks from First-Principles: BTW-FF (OA)
- Tunable Trimers: Using Temperature and Pressure to Control Luminescent Emission in Gold(I) Pyrazolate-Based Trimers (OA)
- Electronic Structure Modulation of Metal−Organic Frameworks for Hybrid Devices (OA)
We have done better for fully open access (OA) publications this year, but still room for improvement. Generally, we don’t pay for gold open access with the American Physical Society (e.g. Physical Review B or Physical Review Letters) because they have the most generous policy for hosting on personal websites and institutional databases.