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Title: Raman spectroscopy of bottom-up synthesized graphene quantum dots: size and structure dependence

Abstract

Graphene quantum dots (GQDs) have attracted significant interest as synthetically tunable optoelectronic and photonic materials that can also serve as model systems for understanding size-dependent behaviors of related graphene structures such as nanoribbons. Here, we present a Raman spectroscopy study of bottom-up synthesized GQDs with lateral dimensions between 0.97 to 1.62 nm, well-defined (armchair) edge type, and fully benzenoid structures. For a better understanding of observed size-dependent trends, the study is extended to larger graphene structures including nano-graphene platelets (>25 nm) and large-area graphene.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]
  1. Center for Integrated Nanotechnologies; Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1570627
Alternate Identifier(s):
OSTI ID: 1559055
Report Number(s):
LA-UR-19-24729
Journal ID: ISSN 2040-3364; NANOHL; TRN: US2001389
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Nanoscale
Additional Journal Information:
Journal Volume: 11; Journal Issue: 35; Journal ID: ISSN 2040-3364
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Material Science

Citation Formats

Dervishi, Enkeleda, Ji, Zhiqiang, Htoon, Han, Sykora, Milan, and Doorn, Stephen K. Raman spectroscopy of bottom-up synthesized graphene quantum dots: size and structure dependence. United States: N. p., 2019. Web. doi:10.1039/C9NR05345J.
Dervishi, Enkeleda, Ji, Zhiqiang, Htoon, Han, Sykora, Milan, & Doorn, Stephen K. Raman spectroscopy of bottom-up synthesized graphene quantum dots: size and structure dependence. United States. doi:10.1039/C9NR05345J.
Dervishi, Enkeleda, Ji, Zhiqiang, Htoon, Han, Sykora, Milan, and Doorn, Stephen K. Thu . "Raman spectroscopy of bottom-up synthesized graphene quantum dots: size and structure dependence". United States. doi:10.1039/C9NR05345J. https://www.osti.gov/servlets/purl/1570627.
@article{osti_1570627,
title = {Raman spectroscopy of bottom-up synthesized graphene quantum dots: size and structure dependence},
author = {Dervishi, Enkeleda and Ji, Zhiqiang and Htoon, Han and Sykora, Milan and Doorn, Stephen K.},
abstractNote = {Graphene quantum dots (GQDs) have attracted significant interest as synthetically tunable optoelectronic and photonic materials that can also serve as model systems for understanding size-dependent behaviors of related graphene structures such as nanoribbons. Here, we present a Raman spectroscopy study of bottom-up synthesized GQDs with lateral dimensions between 0.97 to 1.62 nm, well-defined (armchair) edge type, and fully benzenoid structures. For a better understanding of observed size-dependent trends, the study is extended to larger graphene structures including nano-graphene platelets (>25 nm) and large-area graphene.},
doi = {10.1039/C9NR05345J},
journal = {Nanoscale},
number = 35,
volume = 11,
place = {United States},
year = {2019},
month = {8}
}

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