Cited by 56Nonlinear Optical Materials StudiesLuminescence and Fluorescent MaterialsOrganic Light-Emitting Diodes Research

Aggregation induced enhanced emission of conjugated dendrimers with a large intrinsic two-photon absorption cross-section

Xu, Bin, Zhang, Jibo, Fang, Honghua, Ma, Suqian, Chen, Qidai, Sun, Hongbo, Im, Chan, Tian, Wenjing·2014·Polym. Chem.

Abstract

Organic nonlinear optical materials combining high luminescence quantum yields and large two-photon absorption cross-sections are attractive for both fundamental research and practical applications, such as up-converted lasers and two-photon fluorescence microscopy. Herein, we reported a series of conjugated dendrimers (AnG0, AnG1, and AnG2) which showed weak emissions in dilute solution due to the twisted intramolecular charge transfer (TICT) and free intramolecular rotational motion. On the contrary, high luminescence quantum yields (up to 0.85) have been observed in the nanoaggregated and solid-state because of the restriction of intramolecular rotation (RIR) and the more planar conformation, which has been demonstrated by experimental and theoretical investigations. These dendrimers possess an obviously large intrinsic two-photon absorption cross-section (up to 5180 GM), which is enhanced with the increase of the generation number. Due to the high solid-state luminescence quantum yields, an intense two-photon excited fluorescence with a larger Stokes shift can be obtained from these dendrimers as nanoaggregates and thin films. Thus, these dendrimers successfully provide large two-photon action cross-sections in the nanoaggregated or solid-state and have the potential for nonlinear optical applications.

Integrity signals

Registry

Crossref · 10.1039/c3py00974b

Cites

71 of 71 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Cites

Flagged first, then by citations

1 of the 72 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Xu, B., Zhang, J., Fang, H., Ma, S., Chen, Q., Sun, H., Im, C., & Tian, W.
Affiliations
  • Jilin University (CN)
  • Konkuk University (KR)
Corresponding author
Tian, Wenjing
Venue
Polym. Chem.
Published
2014
Volume
5
Issue
2
Pages
479-488
ISSN
  • 1759-9954 (ISSN-L)
  • 1759-9962
OpenAlex
W2135937310
Cited by
56
References
72
Citations by year
2025: 3 · 2024: 2 · 2023: 3 · 2022: 4 · 2021: 8 · 2020: 1 · 2019: 5 · 2018: 2 · 2017: 4 · 2016: 5 · 2015: 13 · 2014: 6
FWCI
4.41
Type
journal article
Language
en
Open access
closed
Locations
  • Polymer Chemistry (publishedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Nonlinear Optical Materials Studies
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Light-Emitting Diodes Research
Keywords
aggregation-induced emission, conjugated dendrimers, two-photon absorption cross section, intramolecular rotation restriction, twisted intramolecular charge transfer, luminescence quantum yield, two-photon fluorescence, nanoparticle aggregates, nonlinear optical materials, two-photon fluorescence microscopy

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review