Synthesis, Crystal Structure, and Optical Gap of Two-Dimensional Halide Solid Solutions CsPb2 (Cl1-xBrx)(5)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F18%3A43954146" target="_blank" >RIV/49777513:23640/18:43954146 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1021/acs.inorgchem.8b01572" target="_blank" >http://dx.doi.org/10.1021/acs.inorgchem.8b01572</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.inorgchem.8b01572" target="_blank" >10.1021/acs.inorgchem.8b01572</a>

Result language

angličtina

Original language name

Synthesis, Crystal Structure, and Optical Gap of Two-Dimensional Halide Solid Solutions CsPb2 (Cl1-xBrx)(5)

Original language description

Exploring new perovskite-related solid-state materials and the investigating composition-dependent structural and physical properties are highly important for advanced functional material development. Herein, we present the successful hydrothermal synthesis of tetragonal CsPb&lt;INF&gt;2&lt;/INF&gt;Cl&lt;INF&gt;5&lt;/INF&gt; and the anion-exchange phase formation of CsPb&lt;INF&gt;2&lt;/INF&gt;(Cl&lt;INF&gt;1-x&lt;/INF&gt;Br&lt;INF&gt;x&lt;/INF&gt;)&lt;INF&gt;5&lt;/INF&gt; (x = 0-1) solid solutions. The CsPb&lt;INF&gt;2&lt;/INF&gt;(Cl&lt;INF&gt;&lt;/INF&gt;&lt;INF&gt;1-x&lt;/INF&gt;Br&lt;INF&gt;x&lt;/INF&gt;)&lt;INF&gt;5&lt;/INF&gt; crystal structures, which crystallize in the tetragonal system, space group 14/mcm, with parameters similar to those of CsPb&lt;INF&gt;2&lt;/INF&gt;Cl&lt;INF&gt;5&lt;/INF&gt;, have been determined by Rietveld analysis. The optical band gap was obtained by UV-vis spectroscopy, and the band structure was further calculated by the full-potential method within the generalized gradient approximation. It was revealed that the band gap in CsPb&lt;INF&gt;2&lt;/INF&gt;(Cl&lt;INF&gt;1- x&lt;/INF&gt;Br&lt;INF&gt;x&lt;/INF&gt;)&lt;INF&gt;5&lt;/INF&gt; solid solutions can be tuned over the range of 4.5-3.8 eV by anion substitution.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

INORGANIC CHEMISTRY

ISSN

0020-1669

e-ISSN

—

Volume of the periodical

57

Issue of the periodical within the volume

15

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

9531-9537

UT code for WoS article

000441477100094

EID of the result in the Scopus database

2-s2.0-85051193522