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Title: All-polymer methylammonium lead iodide perovskite microcavities
Authors: Lova, Paola
Giusto, Paolo
Di Stasio, Francesco
Manfredi, Giovanni
Paternò, Giuseppe M.
Cortecchia, Daniele
Soci, Cesare
Comoretto, Davide
Keywords: Science::Chemistry
Issue Date: 2019
Source: Lova, P., Giusto, P., Di Stasio, F., Manfredi, G., Paternò, G. M., Cortecchia, D., . . . Comoretto, D. (2019). All-polymer methylammonium lead iodide perovskite microcavities. Nanoscale, 11(18), 8978-8983. doi:10.1039/c9nr01422e
Journal: Nanoscale
Abstract: Thanks to a high photoluminescence quantum yield, large charge carrier diffusion, and ease of processing from solution, perovskite materials are becoming increasingly interesting for flexible optoelectronic devices. However, their deposition requires wide range solvents that are incompatible with many other flexible and solution-processable materials, including polymers. Here, we show that methylammonium lead iodide (MAPbI3) films can be directly synthesized on all-polymer microcavities via simple addition of a perfluorinated layer which protects the polymer photonic structure from the perovskite processing solvents. The new processing provides microcavities with a quality factor Q = 155, that is in agreement with calculations and the largest value reported so far for fully solution processed perovskite microcavities. Furthermore, the obtained microcavity shows strong spectral and angular redistribution of the the MAPbI3 photoluminescence spectrum, which shows a 3.5 fold enhanced intensity with respect to the detuned reference. The opportunity to control and modify the emission of a MAPbI3 film via a simple spun-cast polymer structure is of great interest in advanced optoelectronic applications requiring high colour purity or emission directionality.
ISSN: 2040-3364
DOI: 10.1039/c9nr01422e
Rights: © 2019 The Royal Society of Chemistry. All rights reserved. This paper was published in Nanoscale and is made available with permission of The Royal Society of Chemistry.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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