The two-dimensional electron system (2DES) located at the surface of strontium titanate (STO) and at several other STO-based interfaces has been an established platform for the study of novel physical phenomena since its discovery. Here we report how the interfacing of STO and tetracyanoquinodimethane (TCNQ) results in a charge transfer that depletes the number of free carriers at the STO surface, with a strong impact on its electronic structure. Our study paves the way for efficient tuning of the electronic properties, which promises novel applications in the framework of oxide/organic-based electronics.

Charge Transfer and Orbital Reconstruction at an Organic-Oxide Interface

Schio L.;Verdini A.;Floreano L.;
2023

Abstract

The two-dimensional electron system (2DES) located at the surface of strontium titanate (STO) and at several other STO-based interfaces has been an established platform for the study of novel physical phenomena since its discovery. Here we report how the interfacing of STO and tetracyanoquinodimethane (TCNQ) results in a charge transfer that depletes the number of free carriers at the STO surface, with a strong impact on its electronic structure. Our study paves the way for efficient tuning of the electronic properties, which promises novel applications in the framework of oxide/organic-based electronics.
2023
Istituto Officina dei Materiali - IOM -
charge transfer
conductivity
orbital reorganization
STO
TCNQ
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Descrizione: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, Copyright ©2023 American Chemical Society, after peer review and technical editing by the publisher.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/471927
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