# New Insight into Fluorescent Polymeric Carbon Dots for Solid-State Laser Device

https://mdr.nims.go.jp/datasets/a4c2be40-0ac0-41e7-9a39-c895ad9d30d1

## File

- [ACS_main text_rev.pdf](https://mdr.nims.go.jp/filesets/1661207c-6f9a-49a9-8e4d-579a5835bfcf/download) ([Detail](https://mdr.nims.go.jp/filesets/1661207c-6f9a-49a9-8e4d-579a5835bfcf.md))
- [SI_ACS_PCDs.pdf](https://mdr.nims.go.jp/filesets/9f2a1731-79fd-44e5-97e2-1ae2478c8733/download) ([Detail](https://mdr.nims.go.jp/filesets/9f2a1731-79fd-44e5-97e2-1ae2478c8733.md))

## Id

a4c2be40-0ac0-41e7-9a39-c895ad9d30d1

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-11-29T08:10:39.603477Z

## Updated at

2024-08-03T23:30:11.058674Z

## Published at

2024-08-03T23:30:11.390532Z

## Doi

https://doi.org/10.48505/nims.4416

## First published url

https://doi.org/10.1021/acssuschemeng.3c01775

## Date published

2023-08-21

## Recorded date published

2023-8-21

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: New Insight into Fluorescent Polymeric Carbon Dots for Solid-State Laser
    Device
  title_type: alternative
  lang: ja
- title: New Insight into Fluorescent Polymeric Carbon Dots for Solid-State Laser
    Device
  title_type: original
  lang: en

## Description

- description: "Polymeric carbon dots (PCDs) are an astonishing class of fluorescent
    materials with distinctive structures, properties, and applications. However,
    the internal structures of PCDs are still unclear and are the subject of considerable
    debate due to their complexity. Herein, a new type of pure blue light-emitting
    PCDs was synthesized hydrothermally from ε-poly-l-lysine and citric acid. PCDs
    were observed by using scanning transmission electron microscopy coupled with
    electron energy loss spectroscopy (STEM-EELS) on an atomically thin graphene surface
    to determine the internal structure and compositional gradients combined \r\nwith
    other spectroscopic analyses. These methods revealed that PCDs have a spongy,
    porous structure with uniform element distribution, reflecting organic polymeric
    frameworks that embrace fluorescent aromatic moieties devoid of graphitic, inorganic
    carbon. The polymeric framework acts as a transparent matrix and effectively resists
    self-quenching of photoluminescence (PL) in the solid state. Exploiting their
    excellent fluorescence properties, PCDs were embedded in a planar microcavity
    composed of two distributed Bragg reflectors (DBR), which was demonstrated as
    a single longitudinal solid-state blue laser. The results will facilitate a detailed
    understanding of internal structures of PCDs and their efficient, solid-state
    emission toward the development of rare-earth-free lighting devices."
  description_type: abstract
  lang: eng

## Creator

- name: Barun Kumar Barman
  role: author
  orcid: https://orcid.org/0000-0002-9894-1890
  organization: National Institute for Materials Science
- name: David Hernández-Pinilla
  role: author
  orcid: https://orcid.org/0000-0002-9242-7495
  organization: National Institute for Materials Science
- name: Ovidiu Cretu
  role: author
  orcid: https://orcid.org/0000-0002-1822-8172
  organization: National Institute for Materials Science
- name: Riichiro Ohta
  role: author
  orcid: https://orcid.org/0000-0003-2386-9721
- name: Keiko Okano
  role: author
  organization: National Institute for Materials Science
- name: Toshifumi Shiroya
  role: author
- name: Jun Sasai
  role: author
  orcid: https://orcid.org/0000-0002-9455-9205
- name: Koji Kimoto
  role: author
  orcid: https://orcid.org/0000-0002-3927-0492
  organization: National Institute for Materials Science
- name: Tadaaki Nagao
  role: author
  orcid: https://orcid.org/0000-0002-6746-2686
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: Polymeric Carbon Dots
  schema: not_defined
- subject: solid state laser
  schema: not_defined

## Rights

- description: This document is the Accepted Manuscript version of a Published Work
    that appeared in final form in ACS Sustainable Chemistry & Engineering, copyright
    © 2023 American Chemical Society after peer review and technical editing by the
    publisher. To access the final edited and published work see https://doi.org/10.1021/acssuschemeng.3c01775
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2023-08-04
end_date: 2024-08-04

## Journal

- title: ACS Sustainable Chemistry & Engineering
  issn: '21680485'
  volume: '11'
  issue: '33'
  start_page: 12291
  end_page: 12303

## Conference



## Related item



## Funding

- identifier: 外国人特別研究員制度
  funder_name: JSPS
  description: 若手外国人研究者との日本における共同研究促進

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 1661207c-6f9a-49a9-8e4d-579a5835bfcf
  filename: ACS_main text_rev.pdf
  content_type: application/pdf
  size: 3436444
  md5: cbda1af106e59f9e14da41375693d939
- id: 9f2a1731-79fd-44e5-97e2-1ae2478c8733
  filename: SI_ACS_PCDs.pdf
  content_type: application/pdf
  size: 1590958
  md5: e099baeecaf2391c73443b61127784a4

## Thumbnail

fileset_id: 1661207c-6f9a-49a9-8e4d-579a5835bfcf
filename: ACS_main text_rev.pdf