Plasmonic Nanoparticles Driven Enhanced Light Amplification in a Local 2D and 3D Self-Assembly

Abstract

We present fluorescence and a random lasing enhancement effect due to the interaction between gold nanoparticles (AuNPs) and Rhodamine 6G (Rh6G) dye. Non-covalently bounded dyes in the proximity of nanoparticles are studied in three systems of varying dimensionality: from (i) three-dimensional freely distributed suspensions, through (ii) quasi-two-dimensional multilamellar liposomes, to (iii) solid two-dimensional thin layers. Liposomes facilitate the formation of stable AuNPs/Rh6G composition showing enhanced fluorescence, while solid thin films exhibit plasmon-assisted random lasing.

The Past and the Future of Langmuir and Langmuir–Blodgett Films

“…331 MOF nanoparticles were also deposited in highly ordered LB films functioning as capacitive sensors for methanol and relative humidity. 332 The scheme of the LB deposition on an interdigitated electrode (IDE) and scanning electron microscopy (SEM) images of the films are shown in Figure 21. The monolayer LB films were ca.…”

“…Metal–organic monolayers may incorporate AuNPs for plasmonic enhancement and efficient detection of NO 2 gas using optical methods . MOF nanoparticles were also deposited in highly ordered LB films functioning as capacitive sensors for methanol and relative humidity . The scheme of the LB deposition on an interdigitated electrode (IDE) and scanning electron microscopy (SEM) images of the films are shown in Figure .…”

Silver Nanoparticles Functionalized by Fluorescein Isothiocyanate or Rhodamine B Isothiocyanate: Fluorescent and Plasmonic Materials

“…The interaction of organic molecules with metal nanoparticles (NPs) is of central importance for a large number of applications in several fields, such as chemical and biological sensing [1][2][3][4], optics [5][6][7], energy [8][9][10][11], catalysis [12][13][14][15], and nanomedicine [16][17][18][19]. Many of these applications are based on the effect of the localized surface plasmon resonance (LSPR) on the absorption, emission, and scattering of molecules attached to or in close vicinity to the NP surface [20][21][22][23].…”

Non-Linear Optical Effects in Nanomaterials

“…One of the main topics in modern materials science and in the field of photonics is the search for materials that exhibit multiple useful properties, including large nonlinear optical (NLO) effects, making them suitable for applications in numerous multidisciplinary areas such as frequency conversion, lasing, multiphoton fluorescence microscopy, saturable absorption, or light switching. This Special Issue of Nanomaterials, including 11 original research works [1][2][3][4][5][6][7][8][9][10][11], presents a balanced view of the current state-of-the-art and recent advances in the field of second and third order NLO properties of materials on a nano-and microscale, including experimental as well as theoretical contributions.…”

“…In this Special Issue, we have also included a manuscript devoted to the relatively new area of nanoscience: nonlinear plasmonics and utilization of metal nanoparticles in the enhancement of fluorescence emission [11]. Finally, the last published article gives some insight into mechanisms responsible for photoinduced mass transport in functionalized azo-polymers [7].…”