Chemically Enhanced Raman Scattering Enabled by Organic Semiconductor Molecules with Deep Lowest Unoccupied Molecular Orbitals DOI
Huanhuan Zhang, Hao Wang,

Yinsen Huang

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 2097 - 2103

Published: Feb. 20, 2025

Organic semiconductor materials (OSMs) have emerged as innovative platforms for surface-enhanced Raman scattering (SERS). For now, SERS activity has been established in only a few like thiophene-based derivatives, and the potential of broader OSM library is largely untapped. Systematic exploration energy level alignment between analytes substrates highly desirable further material screening optimization. We introduce strategy utilizing OSMs with deep lowest unoccupied molecular orbital (LUMO) levels, exemplified by TCNQ HATCN, novel active realizing efficient detection multiple organic dyes otherwise undetectable under low-energy incident laser irradiation at 785 nm. Our study showcases selective enhancement diverse highest occupied highlighting pivotal role LUMO levels both sensitivity. This work elucidates structure-SERS correlation, facilitating development via tuning.

Language: Английский

Chemically Enhanced Raman Scattering Enabled by Organic Semiconductor Molecules with Deep Lowest Unoccupied Molecular Orbitals DOI
Huanhuan Zhang, Hao Wang,

Yinsen Huang

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 2097 - 2103

Published: Feb. 20, 2025

Organic semiconductor materials (OSMs) have emerged as innovative platforms for surface-enhanced Raman scattering (SERS). For now, SERS activity has been established in only a few like thiophene-based derivatives, and the potential of broader OSM library is largely untapped. Systematic exploration energy level alignment between analytes substrates highly desirable further material screening optimization. We introduce strategy utilizing OSMs with deep lowest unoccupied molecular orbital (LUMO) levels, exemplified by TCNQ HATCN, novel active realizing efficient detection multiple organic dyes otherwise undetectable under low-energy incident laser irradiation at 785 nm. Our study showcases selective enhancement diverse highest occupied highlighting pivotal role LUMO levels both sensitivity. This work elucidates structure-SERS correlation, facilitating development via tuning.

Language: Английский

Citations

0