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Electrical Field In...
Electrical Field Induced Alignment of P3HT Nanofibers
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- Zhao, Yichen (author)
- KTH,Funktionella material, FNM,Functional Materials Division
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- Lobov, Gleb (author)
- KTH,Optik och Fotonik, OFO
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- Sugunan, Abhilash (author)
- Chemistry, Materials and Surfaces Unit, SP Technical Research Institute of Sweden
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- Karlsson, Mikael (author)
- Department of Sensor system, Acreo Swedish ICT AB
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- Marinins, Aleksandrs (author)
- KTH,Optik och Fotonik, OFO
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- Delekta, Szymon Sollami (author)
- KTH,Optik och Fotonik, OFO
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- Yan, Min (author)
- KTH,Optik och Fotonik, OFO
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- Östling, Mikael (author)
- KTH,Integrerade komponenter och kretsar
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- Wang, Qin (author)
- Department of Sensor system, Acreo Swedish ICT AB
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- Popov, Sergei (author)
- KTH,Optik och Fotonik, OFO
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- Toprak, Muhammet S. (author)
- KTH,Funktionella material, FNM
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(creator_code:org_t)
- English.
- Related links:
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https://urn.kb.se/re...
Abstract
Subject headings
Close
- Abstract: Poly 3-hexylthiophene (P3HT) is one of the most studied conjugated polymers for organic solar cell applications due to its light weight, flexible processing methods and low cost fabrication. However, the hole mobility in P3HT is still relatively low compared to that of the inorganic semiconductors, which is one of the main challenges to achieve better performance of organic solar cells. The P3HT nanofibers with aligned by inducing an external electric field have been studied to improve the hole mobility in P3HT nanofibers. Here we present an AC electric field (1.3 V/µm, 50 Hz) induced alignment of P3HT nanofibers with two different lengths. The optical absorption spectra of aligned nanofibers were measured under different polarizations of incident light. The longer nanofibers showed higher dichroic raitos than that of shorter nanofibers, revealing a better alignment pattern. The photoconductivity of non-aligned and aligned P3HT nanofibers were measured and compared, where the aligned P3HT nanofibers showed a ~270% higher dark current than that of non-aligned sample. Moreover, the current measured under the illumination showed ~110% enhancement in the aligned P3HT nanofibers while only ~70% enhancement was obseved in non-aligned nanofibers, revealing that the alignment process have the potential to improve the mobility for optoelectronic applications.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Keyword
- P3HT nanofibers
- electric field induced alignment
- J-V measurement
Publication and Content Type
- vet (subject category)
- ovr (subject category)
To the university's database
- By the author/editor
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Zhao, Yichen
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Lobov, Gleb
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Sugunan, Abhilas ...
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Karlsson, Mikael
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Marinins, Aleksa ...
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Delekta, Szymon ...
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show more...
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Yan, Min
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Östling, Mikael
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Wang, Qin
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Popov, Sergei
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Toprak, Muhammet ...
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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 Nano technology
- By the university
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Royal Institute of Technology