Narrow Bandgap 1D Lead Iodide Perovskite with Aminophenyl Viologen

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

One-dimensional (1D) perovskites (perovskitoids) occupy an important place among modern semiconducting materials, offering design flexibility together with a wide range of properties. However, most such materials have a large bandgap, which limits their application in photovoltaics. Here, we present a new 1D hybrid perovskite containing the functional cation aminophenyl viologen (APhV). Similar to other materials from the viologen perovskite family, aminophenyl viologen iodidoplumbate(II) (APhV[Pb2I6]·2NMP) exhibits a broad absorption with a narrow and direct bandgap of 1.66 eV, which was calculated from the experimental data and is supported also by our first-principles simulations. Close contact between electron-rich inorganic chains and electron-accepting viologen molecules suggests charge transfer within the hybrid, which is also visible in the density of states. Considering its reasonable thermal stability, aminophenyl viologen iodidoplumbate can find a wide application in photovoltaics.

Details

Original languageEnglish
Pages (from-to)14981-14988
Number of pages8
JournalInorganic chemistry
Volume63
Issue number32
Publication statusPublished - 12 Aug 2024
Peer-reviewedYes

External IDs

PubMed 39058891
ORCID /0000-0002-2391-6025/work/166325890
ORCID /0000-0002-4531-691X/work/166326558