Water dispersion of reduced graphene oxide stabilized via fullerenolsemiconductor for organic solar cells

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/486964.do
DOI
10.1364/OME.7.002487
Title
Water dispersion of reduced graphene oxide stabilized via fullerenolsemiconductor for organic solar cells
Description
National Research Foundation of Korea (NRF) grant funded by the Koreagovernment (NRF2015R1A2A1A10054466); the Korea Institute of EnergyTechnology Evaluation and Planning (KETEP); the Ministry of Trade,Industry and Energy (MOTIE) of the South Korea (No. 20163030013900); andthe GIST Research Institute (GRI) grant funded by the GIST in 2017.
abstract
To obtain solution-processable graphene in bulk-quantities, the chemical route was widely used to prepare graphene oxide (GO); however, the reduction process was inevitably needed to transform insulating GO into semi-metallic reduced graphene oxide (rGO). Therefore, to obtain stable rGO dispersions, many researchers introduced insulating surfactants that prevent irreversible aggregation. Although insulating surfactants were introduced to produce the stable dispersion of rGO, some properties of rGO, such as its dispersibility, processability, and electricity, are still problematic. In order to solve these problems, we synthesized novel rGO (F-OH-rGO) using the reduction process after blending GO and fullerenol (F-OH). By replacing insulating polymers with semiconducting and highly water-soluble F-OH, F-OH-rGO with not only higher conductivity but also a high dispersion concentration as well as film-forming properties could be achieved. We introduced various GO derivatives as hole-transporting layers (HTLs) to organic solar cells (OSCs) with discrepancies in important properties, so the fabricated solar cells manifested significant differences in their performances as we expected. (C) 2017 Optical Society of America
provenance
Made available in Cube on 2018-09-28T16:21:38Z (GMT). No. of bitstreams: 0
language
English
author
Lee, Sehyun
Yeo, Jun-Suk
Yun, Jin-Mun
Kim, Dong-Yu
accessioned
2018-09-28T16:21:38Z
available
2018-09-28T16:21:38Z
issued
2017
citation
OPTICAL MATERIALS EXPRESS(7): 7
issn
2159-3930
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/486964.do
Funder
과학기술정보통신부
Funding Program
광주과학기술원연구운영비지원(0.5)
Project ID
1711061868
Jurisdiction
Rep.of Korea
Project Name
Development of high-efficiency compound semiconductor solar cells and energy storage
rights
openAccess
type
article


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