DataVXChemistry of MaterialsPaper
journal article·2023-08-22Open access

Chalcohalide Antiperovskite Thin Films with Visible Light Absorption and High Charge-Carrier Mobility Processed by Solvent-Free and Low-Temperature Methods

Paz Sebastiá-Luna, Nathan Rodkey, Adeem Saeed Mirza, Sigurd Mertens, Snigdha Lal, Axel Melchor Gaona Carranza, Joaquín Calbo, Marcello Righetto, Michele Sessolo, Laura M. Herz, Koen Vandewal, Enrique Ortí, Mónica Morales-Masis, Henk J. Bolink, Francisco Palazon

Chemistry of Materials· Volume 35· Issue 16
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Source abstract

Abstract

Silver chalcohalide antiperovskites represent a rather unexplored alternative to lead halide perovskites and other semiconductors based on toxic heavy metals. All synthetic approaches reported so far for Ag 3 SI and Ag 3 SBr require long synthesis times (typically days, weeks, or even months) and high temperatures. Herein, we report the synthesis of these materials using a fast and low-temperature method involving mechanochemistry. Structural and optical properties are examined experimentally and supported by first-principles calculations. Furthermore, we deposit Ag 3 SI as thin films by pulsed laser deposition and characterize its optoelectronic properties using optical-pump-terahertz-probe measurements, revealing a high charge-carrier mobility of 49 cm 2 V –1 s –1 . This work paves the way to the implementation of chalcohalide antiperovskites in various optoelectronic applications.
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Research context

Electronic materialsMaterials processing

OpenAlex topics: Perovskite Materials and Applications · Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain

MESA+ Institute for Nanotechnology, University of Twente, Enschede 7500 AE, The Netherlands

Institute for Materials Research (IMO-IMOMEC), Hasselt University, Diepenbeek BE-3590, Belgium

Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, U.K.

Institute for Advanced Study, Technical University of Munich, Lichtenbergstrasse 2a, D-85748 Garching, Germany

Departamento de Ingeniería Química y Ambiental, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain

Funding

Engineering and Physical Sciences Research Council · Generalitat Valenciana · Ministerio de Universidades · Ministerio de Ciencia e Innovaci?n · European Regional Development Fund · H2020 European Research Council · Nederlandse Organisatie voor Wetenschappelijk Onderzoek · Oxford India Centre for Sustainable Development · Agencia Estatal de Investigaci?n,Ministerio de Ciencia, Innovaci?n y Universidades

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