Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 23, 2019
Previous Article Next Article

Enhanced air-stability of Sn-based hybrid perovskites induced by dimethylammonium (DMA): synthesis, characterization, aging and hydrogen photogeneration of the MA1−xDMAxSnBr3 system

Author affiliations

Abstract

Polycrystalline powder samples of the novel MA1−xDMAxSnBr3 system have been synthesized and characterized concerning their structural and optical properties. The progressive alloying on the A-site occurs up to x = 0.60 and results in a linear blue-shift of the absorption edge with the DMA content. Mixed phase samples maintain the cubic crystal structure of parent MASnBr3 with a quasi-linear expansion of the cell volume as the DMA content increases. Aging test coupled with X-ray photoelectron spectroscopy indicates that DMASnBr3 is highly tolerant against air-exposure in terms of both crystal structure and optical properties thus representing a first example of highly-stable Sn(II)-containing hybrid perovskite. In addition, thanks to such stability, proof-of-concept and demonstration of hydrogen photogeneration by DMASnBr3 is reported. Evidence of air-stabile Sn(II)-containing perovskites represent a significant further step in the development of tin-containing photovoltaic devices.

Graphical abstract: Enhanced air-stability of Sn-based hybrid perovskites induced by dimethylammonium (DMA): synthesis, characterization, aging and hydrogen photogeneration of the MA1−xDMAxSnBr3 system

Back to tab navigation

Supplementary files

Article information


Submitted
01 Apr 2019
Accepted
07 May 2019
First published
10 May 2019

J. Mater. Chem. C, 2019,7, 7020-7026
Article type
Paper

Enhanced air-stability of Sn-based hybrid perovskites induced by dimethylammonium (DMA): synthesis, characterization, aging and hydrogen photogeneration of the MA1−xDMAxSnBr3 system

A. Pisanu, A. Speltini, P. Quadrelli, G. Drera, L. Sangaletti and L. Malavasi, J. Mater. Chem. C, 2019, 7, 7020
DOI: 10.1039/C9TC01743G

Social activity

Search articles by author

Spotlight

Advertisements