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Organometallic Halide Perovskite Synthesis in Polymer Melt for Improved Stability in High Humidity

Published online by Cambridge University Press:  20 May 2016

John P. Murphy ,
Jessica M. Andriolo ,
Brandon M. Ross ,
Gary F. Wyss ,
Nicole E. Zander  and
Jack L. Skinner
John P. Murphy*
Affiliation:
Montana Tech Nanotechnology Lab, Montana Tech, Butte, MT
Jessica M. Andriolo
Affiliation:
Montana Tech Nanotechnology Lab, Montana Tech, Butte, MT
Brandon M. Ross
Affiliation:
Montana Tech Nanotechnology Lab, Montana Tech, Butte, MT Department of General Engineering, Montana Tech, Butte, MT
Gary F. Wyss
Affiliation:
Center for Advanced Mineral and Metallurgical Processing, Montana Tech, Butte, MT
Nicole E. Zander
Affiliation:
U.S. Army Research Laboratory, Aberdeen, MD
Jack L. Skinner
Affiliation:
Montana Tech Nanotechnology Lab, Montana Tech, Butte, MT Department of General Engineering, Montana Tech, Butte, MT
*
*(Email: jmurphy@mtech.edu)
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Abstract

A new organometallic halide perovskite (OHP) synthesis method, whereby a polymer melt is used to thermodynamically drive the reaction that forms OHP crystallites, is demonstrated. The synthesis method allows for the facile encapsulation of moisture-sensitive OHP without the loss of simplicity during fabrication, which makes OHP materials so attractive for the photovoltaic industry. Degradation of OHP crystallites embedded in a polystyrene matrix was studied using UV-Vis absorbance over a period of several days. The OHP crystallites degrade as a result of the reversible nature of the reaction that forms the crystallites. After the reversion to precursors (PbI2 and CH3NH3I) the CH3NH3I irreversibly degrades [2] allowing the degradation to be tracked via optical interrogation. Additionally, surface morphology and elemental analysis of fabricated samples was carried out using SEM/EDS techniques.

Keywords

chemical synthesisorganometallicphotovoltaic
Type
Articles
Information
MRS Advances , Volume 1 , Issue 47: Electronics and Photonics , 2016 , pp. 3207 - 3213
Copyright
Copyright © Materials Research Society 2016 

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References

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