Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2016 May 24;7:11683. doi: 10.1038/ncomms11683

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2016, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

(a) A series of time-resolved photoluminescence decays from a CH₃NH₃PbI₃ film measured over time under illumination before time-of-flight secondary-ion-mass spectrometry (ToF-SIMS) measurements. The sample was photoexcited with pulsed excitation (470 nm, 1.2 kJ cm⁻²). (b) ToF-SIMS image of the iodide (I^-) distribution summed through the film depth (the image has been adjusted to show maximum contrast), scale bar, 10 μm. (c) Line scan of the blue arrow in b to show the iodide distribution (right axis). The measured spatial profile of the illumination laser (blue) is shown on the left axis.