0

A Lead Iodide Perovskite Based on a Large Organic Cation for Solar Cell Applications

Chunqing Ma, Dong Shen, Ming-Fai Lo, Chun-Sing Lee

Angew Chem Int Ed Engl. 2018 Jul 26;57(31):9941-9944.

PMID: 29877017

Abstract:

Methylammonium (CH3 NH3+ ) and formamidinium ((NH2 )2 CH+ ) based lead iodide perovskites are currently the two commonly used organic-inorganic lead iodide perovskites. There are still no alternative organic cations that can produce perovskites with band gaps spanning the visible spectrum (that is, <1.7 eV) for solar cell applications. Now, a new perovskite using large propane-1,3-diammonium cation (1,3-Pr(NH3 )22+ ) with a chemical structure of (1,3-Pr(NH3 )2 )0.5 PbI3 is demonstrated. X-ray diffraction (XRD) shows that the new perovskite exhibits a three-dimensional tetragonal phase. The band gap of the new perovskite is about 1.6 eV, which is desirable for photovoltaic applications. A (1,3-Pr(NH3 )2 )0.5 PbI3 perovskite solar cell (PSC) yields a power conversion efficiency (PCE) of 5.1 %. More importantly, this perovskite is composed of a large hydrophobic cation that provides better moisture resistance compared to CH3 NH3 PbI3 perovskite.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP120675538 Propane-1,3-diammonium iodide Propane-1,3-diammonium iodide 120675-53-8 Price
qrcode

We use cookies to understand how you use our site and to improve the overall user experience. This includes personalizing content and advertising. Read our Privacy Policy

Accept Cookies
x