CAS Number 19227-70-4
It has been demonstrated that guanidinium iodide (GI) based additives show significant enhancement in carrier lifetimes and open-circuit voltages in hybrid organic-inorganic perovskite solar cells, due to the hydrogen bonding capability of the GI molecule [1].
Speculation is that hydrogen bonding allows for effective passivation of under-coordinated iodine species located at grain boundaries - both at the surface and internally within the bulk.
Superior performance with cell power conversion efficiencies greater than 17% and an open-circuit voltage of 1.1 V were achieved with device structure ITO/TiO2/perovskite/Spiro-OMeTAD/Au.
| CAS number | 19227-70-4 |
| Chemical formula | CH6IN3 |
| Molecular weight | 186.98 g/mol |
| Synonyms | Guanidine hydroiodide, Diaminomethaniminium iodide, Guanidine monohydroiodide, GI |
| Classification / Family | Guanidinium halides, Perovskite precursor materials, Perovskite solar cells, Perovskite LEDs |
| Purity | >99% |
| Melting point | 194-199 °C |
| Colour | White Powder/crystals |
Chemical structure of Guanidinium iodide; CAS No. 19227-70-4专业代理国外知名镊子品牌
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