ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTWhat Defines a Halide Perovskite?Quinten A. Akkerman*Quinten A. AkkermanNanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy*Email: [email protected]More by Quinten A. Akkerman and Liberato Manna*Liberato MannaNanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy*Email: [email protected]More by Liberato Mannahttp://orcid.org/0000-0003-4386-7985Cite this: ACS Energy Lett. 2020, 5, 2, 604–610Publication Date (Web):January 28, 2020Publication History Received7 January 2020Accepted17 January 2020Published online28 January 2020Published inissue 14 February 2020https://pubs.acs.org/doi/10.1021/acsenergylett.0c00039https://doi.org/10.1021/acsenergylett.0c00039article-commentaryACS PublicationsCopyright © 2020 American Chemical Society. This publication is licensed under CC-BY. This publication is Open Access under the license indicated. Learn MoreArticle Views35965Altmetric-Citations254LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail PDF (6 MB) Get e-AlertscloseSUBJECTS:Cations,Halogens,Inorganic compounds,Metals,Perovskites Get e-Alerts