Evolution of light absorption and emission characteristics of organic perylene nanoparticles through hydrothermal process: Application to solar cells

Eun Hei Cho; Mi Suk Kim; Dong Hyuk Park; Hyunjung Jung; Joona Bang; Jeongyong Kim; Jinsoo Joo

doi:10.1002/adfm.201100588

Evolution of light absorption and emission characteristics of organic perylene nanoparticles through hydrothermal process: Application to solar cells

Eun Hei Cho, Mi Suk Kim, Dong Hyuk Park, Hyunjung Jung, Joona Bang, Jeongyong Kim, Jinsoo Joo

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The evolution of the structural and optical characteristics of polymorphic organic perylene nanoparticles (NPs) is demonstrated by controlling the π-π interactions using a hydrothermal process. The light-emission colors of the perylene NPs vary gradually from yellow to green to light blue with increasing hydrothermal temperature from 110 to 160 °C. An enhanced crystallinity of the NPs from 110 °C to a critical temperature T_c of 140 °C and a transition to the amorphous phase above T_c are observed. The evolution of the photo-luminescence (PL) and optical-absorption characteristics in terms of variations in the crystallinity and physical dimensions (size and shape) of the perylene NPs resulting from the hydrothermal process are analyzed. These results are confirmed by nanoscale PL measurements for single NPs using laser confocal microscopy. The photovoltaic characteristics of organic solar cells (OSCs) are improved through the use of the perylene NPs. It is found that the performance of the OSCs is strongly correlated with the optical-absorption properties of the perylene NPs.

Original language	English
Pages (from-to)	3056-3063
Number of pages	8
Journal	Advanced Functional Materials
Volume	21
Issue number	16
DOIs	https://doi.org/10.1002/adfm.201100588
Publication status	Published - 2011 Aug 23

Keywords

hydrothermal processes
nanoparticles
optical properties
organic solar cells
perylene

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/adfm.201100588

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title = "Evolution of light absorption and emission characteristics of organic perylene nanoparticles through hydrothermal process: Application to solar cells",

abstract = "The evolution of the structural and optical characteristics of polymorphic organic perylene nanoparticles (NPs) is demonstrated by controlling the π-π interactions using a hydrothermal process. The light-emission colors of the perylene NPs vary gradually from yellow to green to light blue with increasing hydrothermal temperature from 110 to 160 °C. An enhanced crystallinity of the NPs from 110 °C to a critical temperature Tc of 140 °C and a transition to the amorphous phase above Tc are observed. The evolution of the photo-luminescence (PL) and optical-absorption characteristics in terms of variations in the crystallinity and physical dimensions (size and shape) of the perylene NPs resulting from the hydrothermal process are analyzed. These results are confirmed by nanoscale PL measurements for single NPs using laser confocal microscopy. The photovoltaic characteristics of organic solar cells (OSCs) are improved through the use of the perylene NPs. It is found that the performance of the OSCs is strongly correlated with the optical-absorption properties of the perylene NPs.",

keywords = "hydrothermal processes, nanoparticles, optical properties, organic solar cells, perylene",

author = "Cho, {Eun Hei} and Kim, {Mi Suk} and Park, {Dong Hyuk} and Hyunjung Jung and Joona Bang and Jeongyong Kim and Jinsoo Joo",

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doi = "10.1002/adfm.201100588",

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T2 - Application to solar cells

AU - Cho, Eun Hei

AU - Kim, Mi Suk

AU - Park, Dong Hyuk

AU - Jung, Hyunjung

AU - Bang, Joona

AU - Kim, Jeongyong

AU - Joo, Jinsoo

PY - 2011/8/23

Y1 - 2011/8/23

N2 - The evolution of the structural and optical characteristics of polymorphic organic perylene nanoparticles (NPs) is demonstrated by controlling the π-π interactions using a hydrothermal process. The light-emission colors of the perylene NPs vary gradually from yellow to green to light blue with increasing hydrothermal temperature from 110 to 160 °C. An enhanced crystallinity of the NPs from 110 °C to a critical temperature Tc of 140 °C and a transition to the amorphous phase above Tc are observed. The evolution of the photo-luminescence (PL) and optical-absorption characteristics in terms of variations in the crystallinity and physical dimensions (size and shape) of the perylene NPs resulting from the hydrothermal process are analyzed. These results are confirmed by nanoscale PL measurements for single NPs using laser confocal microscopy. The photovoltaic characteristics of organic solar cells (OSCs) are improved through the use of the perylene NPs. It is found that the performance of the OSCs is strongly correlated with the optical-absorption properties of the perylene NPs.

AB - The evolution of the structural and optical characteristics of polymorphic organic perylene nanoparticles (NPs) is demonstrated by controlling the π-π interactions using a hydrothermal process. The light-emission colors of the perylene NPs vary gradually from yellow to green to light blue with increasing hydrothermal temperature from 110 to 160 °C. An enhanced crystallinity of the NPs from 110 °C to a critical temperature Tc of 140 °C and a transition to the amorphous phase above Tc are observed. The evolution of the photo-luminescence (PL) and optical-absorption characteristics in terms of variations in the crystallinity and physical dimensions (size and shape) of the perylene NPs resulting from the hydrothermal process are analyzed. These results are confirmed by nanoscale PL measurements for single NPs using laser confocal microscopy. The photovoltaic characteristics of organic solar cells (OSCs) are improved through the use of the perylene NPs. It is found that the performance of the OSCs is strongly correlated with the optical-absorption properties of the perylene NPs.

KW - hydrothermal processes

KW - nanoparticles

KW - optical properties

KW - organic solar cells

KW - perylene

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Evolution of light absorption and emission characteristics of organic perylene nanoparticles through hydrothermal process: Application to solar cells

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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