Enhancing the electronic dimensionality of hybrid organic-inorganic frameworks by hydrogen bonded molecular cations

Fadwa El-Mellouhi, Mohamed Madjet, Golibjon Berdiyorov, El Tayeb Bentria, Sergey Rashkeev, Sabre Kais, Akinlolu Akande, Carlo Motta, Stefano Sanvito, Fahhad Alharbi

Research output: Contribution to journalArticle

Abstract

Transition-metal oxides with pyroxene structure, such as alkali-metal metavanadates, are known for their good chemical stability and have been used accordingly in many applications. In this work, we explore the possibility of enhancing the carrier transport and optoelectronic properties of hybrid inorganic-organic metavanadates MVO3 by introducing molecular cations. The hydrogen bonded molecular cations are found to enhance the electronic effective dimensionality of the system. This is related to the connectivity of the atomic orbitals to form new electron and hole transport channels. For the materials considered here, these channels are formed by hydrogen bonding that, besides enhancing the stability, results in enhanced macroscopic electronic transport and enhanced photo-generated carriers relaxation time. Our study indicates that the electronic dimensionality of the hybrid metavanadates could exceed their subnanometer structural dimensionality which is a desirable feature for improving their optoelectronic properties. This concept can be generalized to a wider class of hybrid organic-inorganic frameworks.

Original languageEnglish
Pages (from-to)1187-1196
Number of pages10
JournalMaterials Horizons
Volume6
Issue number6
DOIs
Publication statusPublished - 1 Jul 2019

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Vanadates
Optoelectronic devices
Cations
Hydrogen
Positive ions
Carrier transport
Chemical stability
Alkali metals
Relaxation time
Alkali Metals
Transition metals
Hydrogen bonds
Oxides
Electrons

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Process Chemistry and Technology
  • Electrical and Electronic Engineering

Cite this

Enhancing the electronic dimensionality of hybrid organic-inorganic frameworks by hydrogen bonded molecular cations. / El-Mellouhi, Fadwa; Madjet, Mohamed; Berdiyorov, Golibjon; Bentria, El Tayeb; Rashkeev, Sergey; Kais, Sabre; Akande, Akinlolu; Motta, Carlo; Sanvito, Stefano; Alharbi, Fahhad.

In: Materials Horizons, Vol. 6, No. 6, 01.07.2019, p. 1187-1196.

Research output: Contribution to journalArticle

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AU - Berdiyorov, Golibjon

AU - Bentria, El Tayeb

AU - Rashkeev, Sergey

AU - Kais, Sabre

AU - Akande, Akinlolu

AU - Motta, Carlo

AU - Sanvito, Stefano

AU - Alharbi, Fahhad

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