A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Measuring optical anisotropy in poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) films with added graphene (2015)


Isoniemi, Tommi; Tuukkanen, Sampo; Cameron, David C.; Simonen, Janne; Toppari, Jussi (2015). Measuring optical anisotropy in poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) films with added graphene. Organic electronics, 25 (October), 317-323. DOI: 10.1016/j.orgel.2015.06.037


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Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Isoniemi, Tommi; Tuukkanen, Sampo; Cameron, David C.; Simonen, Janne; Toppari, Jussi

Lehti tai sarja: Organic electronics

ISSN: 1566-1199

eISSN: 1878-5530

Julkaisuvuosi: 2015

Volyymi: 25

Lehden numero: October

Artikkelin sivunumerot: 317-323

Kustantaja: Elsevier BV * North-Holland

Julkaisumaa: Alankomaat

Julkaisun kieli: englanti

DOI: https://doi.org/10.1016/j.orgel.2015.06.037

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Julkaisukanavan avoin saatavuus:

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/50128


Tiivistelmä

Graphene is a 2D nanomaterial having a great potential for applications in electronics and optoelectronics. Composites of graphene with conducting polymers have shown high performance in practical devices and their solution-processability enables low-cost and high-throughput mass manufacturing using printing techniques. Here we measure the effect of incorporation of graphene into poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) to the optical anisotropy, absorbance and conductivity of the film. Uniaxial anisotropy in PEDOT:PSS films has been thought to be caused by the spin-coating process used in fabrication. We have characterized spray- and spin-coated films using ellipsometry and total internal reflection spectroscopy, the latter especially for films too thick and uneven for ellipsometry, and show that spray-coating, similar to inkjet printing, also produces consistently anisotropic properties even in very thick and uneven films. Possible plasmonic excitations related to graphene are not seen in the films. The optical and electrical anisotropy of graphene/PEDOT:PSS enables routes to high performance devices for electronics, photonics and optoelectronics.


YSO-asiasanat: optoelektroniikka; nanomateriaalit; kalvot (tekniikka); grafeeni; spektroskopia

Vapaat asiasanat: anisotropy; conducting polymer; PEDOT:PSS


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OKM-raportointi: Kyllä

Raportointivuosi: 2015

JUFO-taso: 1


Viimeisin päivitys 2021-30-04 klo 15:09