Confocal microscope photoluminescence and electrical characteristics of single poly(3-hexylthiophene) nanowire strand

Seok Ho Lee, Dong Hyuk Park, Kihyun Kim, Jinsoo Joo, Dae Chul Kim, Hyun Jun Kim, Jeongyong Kim

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The photoluminescence (PL) spectra and images of a single strand of poly(3-hexylthiophene) (P3HT) nanowires with different doping states were compared by means of a laser confocal microscope with a high spatial resolution. The P3HT nanowires were electrochemically synthesized by using an ionic liquid as a dopant. From the ultraviolet and visible absorption spectra, the doping and dedoping effects of the P3HT nanowires through the treatment of organic solvent were investigated. The electrical conductivity of the single strand of the lightly doped P3HT nanowires was estimated to be ∼3.5× 10-3 Scm, which was higher than that (∼5.4× 10-5 Scm) of the dedoped one. From the laser confocal microscope PL experiments, we quantitatively observed more homogeneous and three to eight times brighter light emission from the single strand of the dedoped P3HT nanowires.

Original languageEnglish
Article number263102
JournalApplied Physics Letters
Volume91
Issue number26
DOIs
Publication statusPublished - 2007 Dec 1

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strands
nanowires
microscopes
photoluminescence
ultraviolet absorption
visible spectrum
lasers
light emission
spatial resolution
absorption spectra
electrical resistivity
high resolution
liquids

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Confocal microscope photoluminescence and electrical characteristics of single poly(3-hexylthiophene) nanowire strand. / Lee, Seok Ho; Park, Dong Hyuk; Kim, Kihyun; Joo, Jinsoo; Kim, Dae Chul; Kim, Hyun Jun; Kim, Jeongyong.

In: Applied Physics Letters, Vol. 91, No. 26, 263102, 01.12.2007.

Research output: Contribution to journalArticle

Lee, Seok Ho ; Park, Dong Hyuk ; Kim, Kihyun ; Joo, Jinsoo ; Kim, Dae Chul ; Kim, Hyun Jun ; Kim, Jeongyong. / Confocal microscope photoluminescence and electrical characteristics of single poly(3-hexylthiophene) nanowire strand. In: Applied Physics Letters. 2007 ; Vol. 91, No. 26.
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