Nathan D. Cottam
Magnetic and Electric Field Dependent Charge Transfer in Perovskite/Graphene Field Effect Transistors
Cottam, Nathan D.; Austin, Jonathan S.; Zhang, Chengxi; Patanè, Amalia; Escoffier, Walter; Goiran, Michel; Pierre, Mathieu; Coletti, Camilla; Mišeikis, Vaidotas; Turyanska, Lyudmila; Makarovsky, Oleg
Authors
Jonathan S. Austin
Chengxi Zhang
Professor AMALIA PATANE AMALIA.PATANE@NOTTINGHAM.AC.UK
Professor of Physics
Walter Escoffier
Michel Goiran
Mathieu Pierre
Camilla Coletti
Vaidotas Mišeikis
Dr LYUDMILA TURYANSKA LYUDMILA.TURYANSKA@NOTTINGHAM.AC.UK
Associate Professor
OLEG MAKAROVSKIY Oleg.Makarovsky@nottingham.ac.uk
Associate Professor
Abstract
Stable all-inorganic CsPbX3 perovskite nanocrystals (PNCs) with high optical yield can be used in combination with graphene as photon sensors with high responsivity (up to 106 A W−1) in the VIS-UV range. The performance of these perovskite/graphene field effect transistors (FET) is mediated by charge transfer processes at the perovskite – graphene interface. Here, the effects of high electric (up to 3000kV cm−1) and magnetic (up to 60 T) fields applied perpendicular to the graphene plane on the charge transfer are reported. The authors demonstrate electric- and magnetic-field dependent charge transfer and a slow (>100 s) charge dynamics. Magneto-transport experiments in constant (≈0.005 T s−1) and pulsed (≈1000 T s−1) magnetic fields reveal pronounced hysteresis effects in the transfer characteristics of the FET. A magnetic time is used to explain and model differences in device behavior under fast (pulsed) and slowly (continuous) changing magnetic fields. The understanding of the dynamics of the charge transfer in perovskite/graphene heterostructures developed here is relevant for exploitation of these hybrid systems in electronics and optoelectronics, including ultrasensitive photon detectors and FETs for metrology.
Citation
Cottam, N. D., Austin, J. S., Zhang, C., Patanè, A., Escoffier, W., Goiran, M., …Makarovsky, O. (2023). Magnetic and Electric Field Dependent Charge Transfer in Perovskite/Graphene Field Effect Transistors. Advanced Electronic Materials, 9(2), Article 2200995. https://doi.org/10.1002/aelm.202200995
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 11, 2022 |
Online Publication Date | Dec 7, 2022 |
Publication Date | 2023-02 |
Deposit Date | Dec 9, 2022 |
Publicly Available Date | Mar 28, 2024 |
Journal | Advanced Electronic Materials |
Electronic ISSN | 2199-160X |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 9 |
Issue | 2 |
Article Number | 2200995 |
DOI | https://doi.org/10.1002/aelm.202200995 |
Keywords | Research Article, Research Articles, charge dynamics, graphene, magnetic fields, perovskites, UV photon detector |
Public URL | https://nottingham-repository.worktribe.com/output/14600967 |
Publisher URL | https://onlinelibrary.wiley.com/doi/10.1002/aelm.202200995 |
Files
2022 Adv Elect Materials Blue NCs B And E Field Dependent
(2.7 Mb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
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