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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

INORGANIC CHEMISTRY

ISSN

0020-1669

e-ISSN

—

Svazek periodika

57

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

9531-9537

Kód UT WoS článku

000441477100094

EID výsledku v databázi Scopus

2-s2.0-85051193522