Thermal transport through molecular monolayers in plasmonic nanogaps
Fiona Bell, Erfan Norouzi Farahani, Yeeun Roh, Sara Sangtarash, Zhenyao Jiang, Hatef Sadeghi, Jeremy J Baumberg · 2026
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Description
Fiona Bell's team measured heat flow through single-molecule layers in plasmonic gaps, in a 2026 study. Heat flow through tiny molecules was very hard to measure well, despite predictions of thermal diodes and gated conduction. The team used extreme gap enhancement inside tiny gaps for time-resolved photothermal measurement.
Free-standing sheets of close-packed beads were heated with mid-infrared pulses, and cooling was tracked by lateral transport on fast scales. Cooling rates depended on gap makeup across sulfur-linked rings, with trends in heat flow versus molecular length and contact strength broadly matching non-equilibrium math models. Molecular contacts and dynamic disorder proved crucial for full insight.
Catalog record
| CREATOR | Fiona Bell, Erfan Norouzi Farahani, Yeeun Roh, Sara Sangtarash, Zhenyao Jiang, Hatef Sadeghi, Jeremy J Baumberg |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 35 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |