Enhanced performance of polymer solar cells with a monolayer of assembled gold nanoparticle films fabricated by Langmuir–Blodgett technique

Chen, Xiaoqiang; Yang, Xi; Fu, Weifei; Xu, Mingsheng; Chen, Hongzheng

doi:10.1016/j.mseb.2012.10.024

Cited by 32 publications

(17 citation statements)

References 37 publications

(60 reference statements)

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“…Our group has developed a novel method to prepare an Au NP monolayer using a Langmuir-Blodgett (LB) assembly technique [37]. LB technique has been widely utilized for NP assembly to prepare NP monolayer films with precisely controlled particle densities and interparticle distances.…”

Section: Front Side Integrationmentioning

confidence: 99%

Recent advances in plasmonic organic photovoltaics

2015

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Light trapping based on the localized surface-plasmon resonance (LSPR) effect of metallic nanostructures is a promising strategy to improve the device performance of organic solar cells (OSCs). We review recent advances in plasmonic-enhanced OPVs with solution-processed metallic nanoparticles (NPs). The different types of metallic NPs (sizes, shapes, and hybrids), incorporation positions, and NPs with tunable resonance wavelengths toward broadband enhancement are systematically summarized to give a guideline for the realization of highly efficient plasmonic photovoltaics. plasmonic effect, organic solar cell, enhanced light absorption

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Section: Front Side Integrationmentioning

confidence: 99%

Recent advances in plasmonic organic photovoltaics

2015

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“…Additionally, the use of plasmonic nanoparticles (Ag or Au) combined with conjugated polymers has attracted great attention aiming at enhancing their luminescence, resulting in more efficient devices [9][10][11][12]. The performance of solar cells based on conjugated polymers can be also improved by the enhancement of solar harvesting in devices containing Au or Ag nanoparticles [13,14].…”

Section: Introductionmentioning

confidence: 99%

Surface-Enhanced Raman Scattering of MEH-PPV on Gold and Silver Nanoparticles

Moraes

Campos

Barra

et al. 2018

Journal of Spectroscopy

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The interaction of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) with Au or Ag nanospheres, Au nanostars, and Ag nanoprisms was investigated using surface-enhanced Raman scattering (SERS). The SERS investigation showed that adsorption of MEH-PPV strongly depends on the nature of the nanoparticle surface. On gold nanostars that present a thick layer of capping polymer, SERS spectrum is only observed in relatively concentrated MEH-PPV solution (1 mmol L −1 ). On the other hand, Au and Ag nanospheres present SERS spectra down to 10 −6 mol L −1 and no chemical interaction of MEH-PPV and metal surface is observed. The spectra of MEH-PPV on Ag nanoprisms with PVP as stabilizing agent suggest that the capping polymer induces a planar conformation of MEH-PPV and consequently an increase of conjugation length. These results give support for the application of MEH-PPV on optoelectronics in which interfacial effects are critical in the device efficiency and stability.

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“…20 One method of deposition for such an application is via the Langmuir−Blodgett technique. 21 Chen et al show that the packing structure of gold particle arrays on a substrate by this method can be altered through the manipulation of the surface pressure within a thin layer of particles in organic solvent that is spread over a water subphase. 21 Upon evaporation of the solvent, the particles are transferred onto the substrate to yield an organized array for use in an organic solar cell.…”

Section: ■ Introductionmentioning

confidence: 99%

“…21 Chen et al show that the packing structure of gold particle arrays on a substrate by this method can be altered through the manipulation of the surface pressure within a thin layer of particles in organic solvent that is spread over a water subphase. 21 Upon evaporation of the solvent, the particles are transferred onto the substrate to yield an organized array for use in an organic solar cell. It is likely that this and other processes could be simplified by using surface-active particles, such as those presented in this work, to adsorb at the interface.…”

Section: ■ Introductionmentioning

confidence: 99%

Clusters and Inverse Emulsions from Nanoparticle Surfactants in Organic Solvents

Lombardo

Pozzo

2015

Langmuir

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A method is presented for the synthesis of self-assembling nanoparticle surfactants in nonpolar organic solvents. The method relies on the control of long-range steric repulsion imparted by grafted polystyrene and short-range attraction from short-chain thiol molecules with an alcohol or carboxylic functionality. Similar to water-based nanoparticle surfactants, these oil-dispersed materials are found to cluster in dispersion and also to stabilize oil-water interfaces to form water-in-oil emulsions. The clustering process is characterized with dynamic light scattering (DLS), small-angle X-ray scattering (SAXS), UV-vis spectroscopy, and transmission electron microscopy (TEM). Thermogravimetric analysis (TGA) is used to quantify the surface concentration of grafted polymer, which is found to be a parameter of critical importance for the formation of stable clusters. The clustering kinetics and dispersion stability are both affected by the polymer molecular weight, surface concentration, and chemical structure of the thiol molecules that induce particle attraction. Nanometer-sized water-in-oil emulsions are formed by sonication in the presence of nanoparticle surfactants. A large broadening of the optical absorption spectrum in the NIR region is observed because of changes in the collective surface plasmon resonance of the gold particle shell.

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Enhanced performance of polymer solar cells with a monolayer of assembled gold nanoparticle films fabricated by Langmuir–Blodgett technique

Cited by 32 publications

References 37 publications

Recent advances in plasmonic organic photovoltaics

Recent advances in plasmonic organic photovoltaics

Surface-Enhanced Raman Scattering of MEH-PPV on Gold and Silver Nanoparticles

Clusters and Inverse Emulsions from Nanoparticle Surfactants in Organic Solvents

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