Control of plasmonic fluorescence enhancement on self-assembled 2-D colloidal crystals

A systematic study of the excitation wavelength–LSPR-based fluorescence enhancement of conjugated polymers on Ag-capped two-dimensional colloidal crystals.

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Two-Dimensional Nematic Colloidal Crystals Self-Assembled by Topological Defects

Science ◽

10.1126/science.1129660 ◽

2006 ◽

Vol 313 (5789) ◽

pp. 954-958 ◽

Cited By ~ 561

Author(s):

I. Musevic

Keyword(s):

Colloidal Crystals ◽

Topological Defects ◽

Two Dimensional ◽

Self Assembled

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Faculty Opinions recommendation of Fluorescence enhancement at docking sites of DNA-directed self-assembled nanoantennas.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.717982902.793472097 ◽

2013 ◽

Author(s):

Ben Schuler ◽

Hagen Hofmann

Keyword(s):

Fluorescence Enhancement ◽

Docking Sites ◽

Self Assembled

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Wavelength-Dependent Nonlinear Absorption in Palladium Nanoparticles

Applied Sciences ◽

10.3390/app11041640 ◽

2021 ◽

Vol 11 (4) ◽

pp. 1640

Author(s):

Chunyu Chen ◽

Jun Wang ◽

Yachen Gao

Keyword(s):

Surface Plasmon Resonance ◽

Excitation Energy ◽

Systematic Study ◽

Nonlinear Absorption ◽

Palladium Nanoparticles ◽

Excitation Wavelength ◽

Saturated Absorption ◽

Multi Wavelength ◽

Resonant Region ◽

Absorption Characteristics

This paper aims to study the nonlinear absorption characteristics of palladium nanoparticles (PdNPs) at off-resonant wavelengths. For this purpose, multi-wavelength (500–650 nm) nanosecond Z-scan technique was used. The experimental results indicate that saturated absorption (SA) and the transition from SA to reverse saturated absorption (RSA) can occur, and depends on the excitation wavelength and energy. When the excitation wavelength is constant, with the increase of excitation energy, PdNPs change from SA to RSA. When the excitation energy is constant, with the excitation wavelength approaching surface plasmon resonance (SPR), PdNPs change from SA to RSA. This phenomenon of SA and RSA under multi-wavelength excitation in the off-resonant region provides a supplement for the systematic study of the nonlinear absorption of PdNPs.

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Toward High Mobility Green Solvent‐Processable Conjugated Polymers: A Systematic Study on Chalcogen Effect in Poly(Diketopyrrolopyrrole‐ alt ‐Terchalcogenophene)s

Advanced Functional Materials ◽

10.1002/adfm.202104881 ◽

2021 ◽

pp. 2104881

Author(s):

Zhongli Wang ◽

Yibo Shi ◽

Yunfeng Deng ◽

Yang Han ◽

Yanhou Geng

Keyword(s):

Conjugated Polymers ◽

Systematic Study ◽

High Mobility ◽

Green Solvent

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Template-Free Self-Assembly of Two-Dimensional Polymers into Nano/Microstructured Materials

Molecules ◽

10.3390/molecules26113310 ◽

2021 ◽

Vol 26 (11) ◽

pp. 3310

Author(s):

Shengda Liu ◽

Jiayun Xu ◽

Xiumei Li ◽

Tengfei Yan ◽

Shuangjiang Yu ◽

...

Keyword(s):

Self Assembly ◽

Recent Progress ◽

Two Dimensional ◽

Subsequent Removal ◽

The Past ◽

2D Polymers ◽

Template Free ◽

Self Assembled ◽

The Relationship ◽

Polymer Tubes

In the past few decades, enormous efforts have been made to synthesize covalent polymer nano/microstructured materials with specific morphologies, due to the relationship between their structures and functions. Up to now, the formation of most of these structures often requires either templates or preorganization in order to construct a specific structure before, and then the subsequent removal of previous templates to form a desired structure, on account of the lack of “self-error-correcting” properties of reversible interactions in polymers. The above processes are time-consuming and tedious. A template-free, self-assembled strategy as a “bottom-up” route to fabricate well-defined nano/microstructures remains a challenge. Herein, we introduce the recent progress in template-free, self-assembled nano/microstructures formed by covalent two-dimensional (2D) polymers, such as polymer capsules, polymer films, polymer tubes and polymer rings.

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