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Pseudohalide-induced moisture tolerance in perovskite CH3 NH3 Pb(SCN)2 I thin films.
- Source :
-
Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2015 Jun 22; Vol. 54 (26), pp. 7617-20. Date of Electronic Publication: 2015 May 12. - Publication Year :
- 2015
-
Abstract
- Two pseudohalide thiocyanate ions (SCN(-) ) have been used to replace two iodides in CH3 NH3 PbI3 , and the resulting perovskite material was used as the active material in solar cells. In accelerated stability tests, the CH3 NH3 Pb(SCN)2 I perovskite films were shown to be superior to the conventional CH3 NH3 PbI3 films as no significant degradation was observed after the film had been exposed to air with a relative humidity of 95 % for over four hours, whereas CH3 NH3 PbI3 films degraded in less than 1.5 hours. Solar cells based on CH3 NH3 Pb(SCN)2 I thin films exhibited an efficiency of 8.3 %, which is comparable to that of CH3 NH3 PbI3 based cells fabricated in the same way.<br /> (© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Details
- Language :
- English
- ISSN :
- 1521-3773
- Volume :
- 54
- Issue :
- 26
- Database :
- MEDLINE
- Journal :
- Angewandte Chemie (International ed. in English)
- Publication Type :
- Academic Journal
- Accession number :
- 25968343
- Full Text :
- https://doi.org/10.1002/anie.201503038