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Electric field indu...
Electric field induced optical anisotropy of P3HT nanofibers in a liquid solution
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- Lobov, Gleb S. (author)
- KTH,Optik och Fotonik, OFO,KTH Royal Institute of Technology, Sweden
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- Zhao, Yichen (author)
- KTH,Funktionella material, FNM,KTH Royal Institute of Technology, Sweden
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- Marinins, Aleksandrs (author)
- KTH,Optik och Fotonik, OFO,KTH Royal Institute of Technology, Sweden
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- Yan, Min (author)
- KTH,Optik och Fotonik, OFO
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- Li, Jiantong (author)
- KTH Royal Institute of Technology, Sweden
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- Toprak, Muhammet S. (author)
- KTH,Funktionella material, FNM,KTH Royal Institute of Technology, Sweden
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- Sugunan, Abhilash (author)
- RISE,Material och ytteknik
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- Thylén, Lars (author)
- KTH,Skolan för bioteknologi (BIO),Hewlett-Packard Laboratories, United States,Hewlett-Packard Laboratories, US; KTH Royal Institute of Technology, Sweden
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- Wosinski, Lech (author)
- KTH,Skolan för informations- och kommunikationsteknik (ICT),FMI FOTONIK O MIKROVÅGSTEKNIK,KTH Royal Institute of Technology, Sweden
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- Östling, Mikael (author)
- KTH,Integrerade komponenter och kretsar,KTH Royal Institute of Technology, Sweden
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- Popov, Sergei (author)
- KTH,Optik och Fotonik, OFO
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- Yan, Max (author)
- KTH Royal Institute of Technology, Sweden
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(creator_code:org_t)
- Optical Society of America, 2015
- 2015
- English.
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In: Optical Materials Express. - : Optical Society of America. - 2159-3930 .- 2159-3930. ; 5:11, s. 2642-2647
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Abstract
Subject headings
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- 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.
Subject headings
- 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)
Keyword
- 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
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Lobov, Gleb S.
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Zhao, Yichen
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Marinins, Aleksa ...
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Yan, Min
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Li, Jiantong
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Toprak, Muhammet ...
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Sugunan, Abhilas ...
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Thylén, Lars
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Wosinski, Lech
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Östling, Mikael
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Popov, Sergei
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Yan, Max
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
- Articles in the publication
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Optical Material ...
- By the university
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Royal Institute of Technology
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RISE