Quantifying anisotropic thermal transport in two-dimensional perovskite (PEA2PbI4) through cross-sectional scanning thermal microscopy

Maiti, Abhishek and Agarwal, Khushboo and Gonzalez-Munoz, Sergio and Kolosov, Oleg V. (2023) Quantifying anisotropic thermal transport in two-dimensional perovskite (PEA2PbI4) through cross-sectional scanning thermal microscopy. Physical Review Materials, 7 (2): 023801. ISSN 2475-9953

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Abstract

The thermal properties of amorphous and crystalline phases in chalcogenide phase change materials (PCM) play a key role in device performance for non-volatile random-access memory. Here, we report the nanothermal morphology of amorphous and crystalline phases in laser pulsed GeTe and Ge2Sb2Te5 thin films by scanning thermal microscopy (SThM). By SThM measurements and quantitative finite element analysis simulations of two film thicknesses, the PCM thermal conductivities and thermal boundary conductances between the PCM and SThM probe are independently estimated for the amorphous and crystalline phase of each stoichiometry.

Item Type:

Journal Article

Journal or Publication Title:

Physical Review Materials

Additional Information:

Uncontrolled Keywords:

Research Output Funding/yes_externally_funded

Subjects:

?? sthmscanning thermal microscopyanisotropy2d materialssolar cellsbexpyes - externally fundedphysics and astronomy(all)electronic, optical and magnetic materialscondensed matter physicsfst keywords: ??

Departments:

Faculty of Science and Technology > Physics

ID Code:

186251

Deposited By:

ep_importer_pure

Deposited On:

09 Feb 2023 11:15

Refereed?:

Yes

Published?:

Published

Last Modified:

09 Feb 2024 00:59

URI:

https://eprints.lancs.ac.uk/id/eprint/186251