Evidence map›Paper›PMID 35208012›Full record

ArticleMaterials (Basel, Switzerland)2022

Towards N-N-Doped Carbon Dots: A Combined Computational and Experimental Investigation.

Chiara Olla, Stefania Porcu, Francesco Secci, Pier Carlo Ricci, Carlo Maria Carbonaro

Open access · goldAbstract read
In one paragraph

Article in Materials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-weighted citation impact, top 39% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Article
  3. β‑Cyclodextrin-CoatedACS applied nano materials · 2026
    Article
  4. Article
  5. Review
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Chiara OllaDepartment of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy.ORCID 0000-0002-0345-445X
Stefania PorcuDepartment of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy.ORCID 0000-0002-2258-0697
Francesco SecciDepartment of Chemistry and Geological Science, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy.
Pier Carlo RicciDepartment of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy.ORCID 0000-0001-6191-4613
Carlo Maria CarbonaroDepartment of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy.ORCID 0000-0001-6353-6409
University of Cagliari · IT

Funding

Fondazione di Sardegna F74I19000930007Italian Ministry of University and Research 2017W75RAE
6 · The paper itself

Abstract

The introduction of N doping atoms in the carbon network of Carbon Dots is known to increase their quantum yield and broaden the emission spectrum, depending on the kind of N bonding introduced. N doping is usually achieved by exploiting amine molecules in the synthesis. In this work, we studied the possibility of introducing a N-N bonding in the carbon network by means of hydrothermal synthesis of citric acid and hydrazine molecules, including hydrated hydrazine, di-methylhydrazine and phenylhydrazine. The experimental optical features show the typical fingerprints of Carbon Dots formation, such as nanometric size, excitation dependent emission, non-single exponential decay of photoluminescence and G and D vibrational bands in the Raman spectra. To explain the reported data, we performed a detailed computational investigation of the possible products of the synthesis, comparing the simulated absorbance spectra with the experimental optical excitation pattern. The computed Raman spectra corroborate the hypothesis of the formation of pyridinone derivatives, among which the formation of small polymeric chains allowed the broad excitation spectra to be experimentally observed.

Indexed as

carbon dotsDFThydrazinesnitrogen dopingphotoluminescenceRaman

Identifiers

PMID35208012
PMCPMC8880414
OpenAlexW4213054420

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.