Tuning optical properties of poly(3-hexylthiophene) nanoparticles through hydrothermal processing

Seok Ho Lee; Yong Baek Lee; Dong Hyuk Park; Mi Suk Kim; Eun Hei Cho; Jinsoo Joo

doi:10.1088/1468-6996/12/2/025002

Tuning optical properties of poly(3-hexylthiophene) nanoparticles through hydrothermal processing

Seok Ho Lee, Yong Baek Lee, Dong Hyuk Park, Mi Suk Kim, Eun Hei Cho, Jinsoo Joo

Korea University

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

15 Scopus citations

Abstract

Poly(3-hexylthiophene) (P3HT) nanoparticles (NPs) were prepared by a reprecipitation method. Hydrothermal processing applied external pressure to the pristine P3HT NPs at temperatures ranging from 60 to 150 °C. Optical absorption and photoluminescence (PL) spectra for the hydrothermally treated P3HT NPs varied markedly with the processing temperature. With increasing treatment temperature, the absorption peak broadened and the peak position shifted from 510 to 623 nm; moreover, the intensity ratio of the 0-1 to 0-0 emission varied. These changes were caused by interactions between the P3HT main chains and alkyl side groups and conformational modifications induced by the high pressure during the hydrothermal process. The evolution of the optical absorption spectra of the P3HT NPs during the hydrothermal processing was strongly correlated with the variation of PL excitation spectra and with the PL emission spectra of a single NP.

Original language	English
Article number	025002
Journal	Science and Technology of Advanced Materials
Volume	12
Issue number	2
DOIs	https://doi.org/10.1088/1468-6996/12/2/025002
State	Published - Mar 2011
Externally published	Yes

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title = "Tuning optical properties of poly(3-hexylthiophene) nanoparticles through hydrothermal processing",

abstract = "Poly(3-hexylthiophene) (P3HT) nanoparticles (NPs) were prepared by a reprecipitation method. Hydrothermal processing applied external pressure to the pristine P3HT NPs at temperatures ranging from 60 to 150 °C. Optical absorption and photoluminescence (PL) spectra for the hydrothermally treated P3HT NPs varied markedly with the processing temperature. With increasing treatment temperature, the absorption peak broadened and the peak position shifted from 510 to 623 nm; moreover, the intensity ratio of the 0-1 to 0-0 emission varied. These changes were caused by interactions between the P3HT main chains and alkyl side groups and conformational modifications induced by the high pressure during the hydrothermal process. The evolution of the optical absorption spectra of the P3HT NPs during the hydrothermal processing was strongly correlated with the variation of PL excitation spectra and with the PL emission spectra of a single NP.",

author = "Lee, {Seok Ho} and Lee, {Yong Baek} and Park, {Dong Hyuk} and Kim, {Mi Suk} and Cho, {Eun Hei} and Jinsoo Joo",

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T1 - Tuning optical properties of poly(3-hexylthiophene) nanoparticles through hydrothermal processing

AU - Lee, Seok Ho

AU - Lee, Yong Baek

AU - Park, Dong Hyuk

AU - Kim, Mi Suk

AU - Cho, Eun Hei

AU - Joo, Jinsoo

PY - 2011/3

Y1 - 2011/3

N2 - Poly(3-hexylthiophene) (P3HT) nanoparticles (NPs) were prepared by a reprecipitation method. Hydrothermal processing applied external pressure to the pristine P3HT NPs at temperatures ranging from 60 to 150 °C. Optical absorption and photoluminescence (PL) spectra for the hydrothermally treated P3HT NPs varied markedly with the processing temperature. With increasing treatment temperature, the absorption peak broadened and the peak position shifted from 510 to 623 nm; moreover, the intensity ratio of the 0-1 to 0-0 emission varied. These changes were caused by interactions between the P3HT main chains and alkyl side groups and conformational modifications induced by the high pressure during the hydrothermal process. The evolution of the optical absorption spectra of the P3HT NPs during the hydrothermal processing was strongly correlated with the variation of PL excitation spectra and with the PL emission spectra of a single NP.

AB - Poly(3-hexylthiophene) (P3HT) nanoparticles (NPs) were prepared by a reprecipitation method. Hydrothermal processing applied external pressure to the pristine P3HT NPs at temperatures ranging from 60 to 150 °C. Optical absorption and photoluminescence (PL) spectra for the hydrothermally treated P3HT NPs varied markedly with the processing temperature. With increasing treatment temperature, the absorption peak broadened and the peak position shifted from 510 to 623 nm; moreover, the intensity ratio of the 0-1 to 0-0 emission varied. These changes were caused by interactions between the P3HT main chains and alkyl side groups and conformational modifications induced by the high pressure during the hydrothermal process. The evolution of the optical absorption spectra of the P3HT NPs during the hydrothermal processing was strongly correlated with the variation of PL excitation spectra and with the PL emission spectra of a single NP.

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JO - Science and Technology of Advanced Materials

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Tuning optical properties of poly(3-hexylthiophene) nanoparticles through hydrothermal processing

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