Plasmonic effects and the morphology changes on the active material P3HT:PCBM used in polymer solar cells using Raman spectroscopy

Yang, Yuzhao; Sun, Lu; Ou, Jiemei; He, Yiting; Lin, Xiaofeng; Yuan, Zhongke; Lin, Wensheng; Hong, Wei; Yu, Dingshan; Chen, Xudong; Qiu, Zhiren

doi:10.1002/jrs.4917

Cited by 9 publications

(6 citation statements)

References 41 publications

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“…42,43 Moreover, no new peak or any peak position shift is observed in the Raman spectra of samples embedding Au NSs or Au@SiO 2 NSs. In a similar way, Yang et al 44 investigated the plasmonic effects on the molecular order of P3HT:PCBM by using Raman spectroscopy at the excitation wavelength of 633 nm. This wavelength is known to be sensitive to ordered molecules but insensitive to disordered molecules for P3HT of the samples.…”

Section: Resultsmentioning

confidence: 99%

Effect of shell thickness of gold-silica core-shell nanospheres embedded in an organic buffer matrix for plasmonic solar cells

N’Konou

Many

Ruiz

et al. 2018

Journal of Applied Physics

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The integration of metal nanoparticles in an organic buffer matrix for plasmonic organic solar cells (OSCs) has been explored as a route for improving the photovoltaic performance, with localized electromagnetic field enhancement around nanoparticles. We investigate the optical behavior of gold-silica core-shell nanospheres (Au@SiO 2 NSs) with different shell thicknesses integrated into a 30 nm-thick poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) layer which is traditionally used as a buffer layer in OSCs. The morphology and size of the chemically synthesized Au@SiO 2 NSs are determined by TEM, indicating that the average diameter of the Au core is about 50 nm, while the thickness of the dielectric shell can be adjusted to around 5 or 10 nm. The effect of Au@SiO 2 NSs on the surrounding electromagnetic field in such a heterogeneous matrix and subsequent multilayers is examined using a numerical simulation based on a 3D-FDTD method. Furthermore, a broadband absorption enhancement in the films, which can be primarily attributed to far-field scattering and also to the localized surface plasmon resonance around the wavelength of 530 nm, is observed in the simulated and measured absorption spectra. The analysis of the electromagnetic field between NSs and the active layer using Raman spectroscopy is also presented. The Raman spectra confirm that a plasmon effect occurs and induces a strong field enhancement; this does not change the Raman peak position but increases its signal intensity depending on the silica shell's thickness. As a result, plasmonic devices including Au@SiO 2 NSs with a 5 nm-shell thickness present the best optical behavior compared to bare NSs or 10 nm-thick shell Au@SiO 2 NSs.

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Section: Resultsmentioning

confidence: 99%

Effect of shell thickness of gold-silica core-shell nanospheres embedded in an organic buffer matrix for plasmonic solar cells

N’Konou

Many

Ruiz

et al. 2018

Journal of Applied Physics

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“…The Raman mappings were obtained recording spectra from areas of 100 μm × 70 μm with 1 μm of step (three of them are shown in Fig. 7a, b, c, and d), where brighter spots indicate the higher relative intensity of the band at 1445 cm −1 , assigned to symmetric C=C stretching [23,41]. The others two bands around 1381 and 728 cm −1 are attributed to C-C intra-ring stretching and C-S-C ring skeleton deformation, respectively [23,41,42].…”

Section: Morphology Of P3ht and P3ot Ls Films Before And After Gas Exmentioning

confidence: 99%

“…To investigate how the THF gas atmosphere affects the morphology of the LS films, the molecular ordering of P3HT and P3OT was analyzed before and after gas exposure. For that, three important parameters were investigated to identify the molecular ordering of these polymers: i) peak position of C=C stretching mode (1445 cm −1 ) shifts to lower wavenumbers; ii) the relative intensity of C-C mode (1381 cm −1 ) to C=C mode (1445 cm −1 ) (I C-C /I C=C ) becomes larger; and iii) full width at half maximum (FWHM) of C=C stretching mode (1445 cm −1 ) becomes narrower [41,43]. These three parameters are presented in Table 2 for the LS films of P3HT and P3OT before and after THF gas exposure.…”

Section: Morphology Of P3ht and P3ot Ls Films Before And After Gas Exmentioning

confidence: 99%

Langmuir-Schaefer films of regioregular polythiophene derivatives as VOCs sensors

Oliveira

Citolino

Camacho

et al. 2018

Materials Chemistry and Physics

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The P3HT and P3OT polymers were scattered on a water-air surface of a Langmuir trough. • Through isotherms (π-A) one can identify the organization phases of the molecules. • The thin films presented linear growth through of Langmuir Schaefer technique. • The thin films on the interdigitated electrode quickly detected the organic vapor. • Raman mapping detected the physical interactions between organic polymers and vapors.

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“…Yang and co‐workers describe plasmonic effects and the morphological changes or the active material P3HT:PCBM in polymer solar cells using Raman spectroscopy. The direct comparison of the Raman spectra of non‐annealed and annealed samples indicates that the morphology of plasmonic samples has changed before annealing, and the morphology of plasmonic samples and a reference sample after annealing are not distinguishable . Yin et al reported enhanced Raman scattering based on Fabry‐Perot‐like resonance in a metal‐cladding waveguide.…”

Section: Nanomaterialsmentioning

confidence: 99%

Recent advances in linear and non‐linear Raman spectroscopy. Part XI

Nafie

2017

J Raman Spectroscopy

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This review, published annually, provides an overview of advances in the field of Raman spectroscopy as found in papers published in the preceding calendar year in the Journal of Raman Spectroscopy (JRS), as well as in trends over the past decade across journals that have published papers important to the field of Raman spectroscopy. This information is obtained from statistical data on article counts obtained from Clarivate Analytics' Web of Science Core Collection by year and by subfield of Raman spectroscopy. Additional information is gleaned from presentations at the IX International Conference on Advanced Vibrational Spectroscopy (ICAVS‐9) in Victoria, British Columbia, Canada, in June 2017 and those featuring Raman scattering at SCIX 2017 organized by the Federation of Analytical Chemistry and Spectroscopy Societies (FACSS) in Reno, Nevada, USA, in October 2017. Coverage is also provided for topics from the European Conference on Non‐linear Optical Spectroscopy (ECONOS 2017) held in April 2017 in Jena, Germany, and the Ninth Congress on the Application of Raman in Art and Archaeology (RAA 2017) in October 2017 in Evora, Portugal. Finally, papers published in JRS in 2016 are highlighted and arranged by topics at the frontier of Raman spectroscopy. Based on this survey information, it is clear that Raman spectroscopy maintains a rapidly expanding influence across a wide range of novel disciplines and applications that provide sensitive photonic information of matter at the molecular level.

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Plasmonic effects and the morphology changes on the active material P3HT:PCBM used in polymer solar cells using Raman spectroscopy

Cited by 9 publications

References 41 publications

Effect of shell thickness of gold-silica core-shell nanospheres embedded in an organic buffer matrix for plasmonic solar cells

Effect of shell thickness of gold-silica core-shell nanospheres embedded in an organic buffer matrix for plasmonic solar cells

Langmuir-Schaefer films of regioregular polythiophene derivatives as VOCs sensors

Recent advances in linear and non‐linear Raman spectroscopy. Part XI

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