Band engineering in iron and silver co-doped double perovskite nanocrystals for selective photocatalytic CO2 reduction

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F24%3A10255464" target="_blank" >RIV/61989100:27640/24:10255464 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15640/24:73625980 RIV/61989592:15310/24:73625980 RIV/61989100:27740/24:10255464

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2024/ta/d4ta00676c" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2024/ta/d4ta00676c</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d4ta00676c" target="_blank" >10.1039/d4ta00676c</a>

Result language

angličtina

Original language name

Band engineering in iron and silver co-doped double perovskite nanocrystals for selective photocatalytic CO2 reduction

Original language description

Double metal cation halide perovskites are promising alternatives to lead halide perovskites due to their exceptional compositional flexibility and stability. However, their utilization in solar-light harvesting applications has been hindered by their large band gap and the complexity of producing doped or alloyed materials with desirable optoelectronic properties. In this study, we report the colloidal synthesis of iron-doped Cs2NaInCl6 double perovskite nanocrystals (NCs), leading to a significant extension of the absorption edge from 330 nm to 505 nm. We also demonstrate that simultaneous doping with Fe3+ and Ag+ ions allows significant reduction of the optical band gap and precise tuning of electronic band structures of the resulting NCs. The enhanced absorption in the visible region is attributed to the substitution of In-5s by the Fe-3d state, while the introduction of the Ag 4d state upshifts the valence band maximum, inducing a transformative change in the band structure, as confirmed by density functional theory (DFT) calculations. Remarkably, by precisely controlling the band positions of the Fe3+-doped Cs2Ag0.5Na0.5InCl6 NCs, we accomplished the selective photocatalytic reduction of CO2 into CH4, making them readily available for solar-energy conversion technologies. (C) 2024 The Royal Society of Chemistry.

Czech name

—

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

10400 - Chemical sciences

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

2024

Confidentiality

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

Name of the periodical

Journal of Materials Chemistry A

ISSN

2050-7488

e-ISSN

2050-7496

Volume of the periodical

12

Issue of the periodical within the volume

34

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

23035-23048

UT code for WoS article

001284838500001

EID of the result in the Scopus database

2-s2.0-85200904355