| 000 | 04339nlm1a2200457 4500 | ||
|---|---|---|---|
| 001 | 660155 | ||
| 005 | 20231030041655.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\29123 | ||
| 035 | _aRU\TPU\network\27182 | ||
| 090 | _a660155 | ||
| 100 | _a20190429a2018 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aLarge-scale self-organized gold nanostructures with bidirectional plasmon resonances for SERS _fB. Schreiber [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 330 | _aEfficient substrates for surface-enhanced Raman spectroscopy (SERS) are under constant development, since time-consuming and costly fabrication routines are often an issue for high-throughput spectroscopy applications. In this research, we use a two-step fabrication method to produce self-organized parallel-oriented plasmonic gold nanostructures. The fabrication routine is ready for wafer-scale production involving only low-energy ion beam irradiation and metal deposition. The optical spectroscopy features of the resulting structures show a successful bidirectional plasmonic response. The localized surface plasmon resonances (LSPRs) of each direction are independent from each other and can be tuned by the fabrication parameters. This ability to tune the LSPR characteristics allows the development of optimized plasmonic nanostructures to match different laser excitations and optical transitions for any arbitrary analyte. Moreover, in this study, we probe the polarization and wavelength dependence of such bidirectional plasmonic nanostructures by a complementary spectroscopic ellipsometry and Raman spectroscopy analysis. We observe a significant signal amplification by the SERS substrates and determine enhancement factors of over a thousand times. We also perform finite element method-based calculations of the electromagnetic enhancement for the SERS signal provided by the plasmonic nanostructures. The calculations are based on realistic models constructed using the same particle sizes and shapes experimentally determined by scanning electron microscopy. The spatial distribution of electric field enhancement shows some dispersion in the LSPR, which is a direct consequence of the semi-random distribution of hotspots. The signal enhancement is highly efficient, making our SERS substrates attractive candidates for high-throughput chemical sensing applications in which directionality, chemical stability, and large-scale fabrication are essential requirements. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tRSC Advances | ||
| 463 |
_tVol. 8, iss. 40 _v[P. 22569-22576] _d2018 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aнаноструктуры | |
| 610 | 1 | _aплазмонные возбуждения | |
| 701 | 1 |
_aSchreiber _bB. _gBenjamin |
|
| 701 | 1 |
_aGkogkou _bD. _gDimitra |
|
| 701 | 1 |
_aDedelaite _bL. _gLina |
|
| 701 | 1 |
_aKerbusch _bJ. _gJochen |
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| 701 | 1 |
_aHubner _bR. _gRene |
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| 701 | 1 |
_aSheremet _bE. S. _cphysicist _cProfessor of Tomsk Polytechnic University _f1988- _gEvgeniya Sergeevna _2stltpush _3(RuTPU)RU\TPU\pers\40027 |
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| 701 | 1 |
_aZahn _bD. R. T. _gDietrich |
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| 701 | 1 |
_aRamanavicius _bA. _gArunas |
|
| 701 | 1 |
_aFacsko _bS. _gStefan |
|
| 701 | 1 |
_aRodriguez (Rodriges) Contreras _bR. D. _cVenezuelan physicist, doctor of science _cProfessor of Tomsk Polytechnic University _f1982- _gRaul David _2stltpush _3(RuTPU)RU\TPU\pers\39942 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИсследовательская школа химических и биомедицинских технологий (ИШХБМТ) _c(2017- ) _h8120 _2stltpush _3(RuTPU)RU\TPU\col\23537 |
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИсследовательская школа физики высокоэнергетических процессов _c(2017- ) _h8118 _2stltpush _3(RuTPU)RU\TPU\col\23551 |
| 801 | 2 |
_aRU _b63413507 _c20190429 _gRCR |
|
| 856 | 4 | _uhttp://dx.doi.org/10.1039/C8RA04031A | |
| 942 | _cCF | ||