Electric field induced optical anisotropy of P3HT nanofibers in a liquid solution

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Lobov, Gleb S.KTH,Optik och Fotonik, OFO,KTH Royal Institute of Technology, Sweden (författare)

QC 20160210
Publication no: A3598
The nanofiber morphology of regioregular Poly-3- hexylthiophene (P3HT) is a 1D crystalline structure organized by π - π stacking of the backbone chains. In this study, we report the impact of electric field on the orientation and optical properties of P3HT nanofibers dispersed in liquid solution. We demonstrate that alternating electric field aligns nanofibers, whereas static electric field forces them to migrate towards the cathode. The alignment of nanofibers introduces anisotropic optical properties, which can be dynamically manipulated until the solvent has evaporated. Time resolved spectroscopic measurements revealed that the electro-optical response time decreases significantly with the magnitude of applied electric field. Thus, for electric field 1.3 V ·μm-1 the response time was measured as low as 20 ms, while for 0.65 V ·μm-1 it was 110-150 ms. Observed phenomenon is the first mention of P3HT supramolecules associated with electrooptical effect. Proposed method provides real time control over the orientation of nanofibers, which is a starting point for a novel practical implementation. With further development P3HT nanofibers can be used individually as an anisotropic solution or as an active component in a guest-host system.

TEKNIK OCH TEKNOLOGIER Materialteknik hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering hsv//eng
NATURVETENSKAP Fysik Atom- och molekylfysik och optik hsv//swe
NATURAL SCIENCES Physical Sciences Atom and Molecular Physics and Optics hsv//eng
NATURVETENSKAP Kemi Materialkemi hsv//swe
NATURAL SCIENCES Chemical Sciences Materials Chemistry hsv//eng
Anisotropy
Electric fields
Nanofibers
Real time control
Alternating electric field
Anisotropic optical properties
Crystalline structure
Electric field induced
Electrooptical response
Poly-3-hexylthiophene
Spectroscopic measurements
Static electric fields
Optical properties

Zhao, YichenKTH,Funktionella material, FNM,KTH Royal Institute of Technology, Sweden(Swepub:kth)u17os1v7 (författare)
Marinins, AleksandrsKTH,Optik och Fotonik, OFO,KTH Royal Institute of Technology, Sweden(Swepub:kth)u1a8qhh2 (författare)
Yan, MinKTH,Optik och Fotonik, OFO(Swepub:kth)u1jenxfs (författare)
Li, JiantongKTH Royal Institute of Technology, Sweden(Swepub:kth)u1nlco2z (författare)
Toprak, Muhammet S.KTH,Funktionella material, FNM,KTH Royal Institute of Technology, Sweden(Swepub:kth)u1u3m5a2 (författare)
Sugunan, AbhilashRISE,Material och ytteknik(Swepub:ri)AbhilashSu@ri.se (författare)
Thylén, LarsKTH,Skolan för bioteknologi (BIO),Hewlett-Packard Laboratories, United States,Hewlett-Packard Laboratories, US; KTH Royal Institute of Technology, Sweden(Swepub:kth)u1odcwum (författare)
Wosinski, LechKTH,Skolan för informations- och kommunikationsteknik (ICT),FMI FOTONIK O MIKROVÅGSTEKNIK,KTH Royal Institute of Technology, Sweden(Swepub:kth)u1ywmbo9 (författare)
Östling, MikaelKTH,Integrerade komponenter och kretsar,KTH Royal Institute of Technology, Sweden(Swepub:kth)u1u0kle4 (författare)
Popov, SergeiKTH,Optik och Fotonik, OFO(Swepub:kth)u1fs8je2 (författare)
Yan, MaxKTH Royal Institute of Technology, Sweden (författare)
KTHOptik och Fotonik, OFO (creator_code:org_t)

Ingår i:Optical Materials Express: Optical Society of America5:11, s. 2642-26472159-39302159-3930

Av författaren/redakt...: Lobov, Gleb S.; Zhao, Yichen; Marinins, Aleksa ...; Yan, Min; Li, Jiantong; Toprak, Muhammet ...; visa fler...; Sugunan, Abhilas ...; Thylén, Lars; Wosinski, Lech; Östling, Mikael; Popov, Sergei; Yan, Max; visa färre...

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