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Svensson, Per-Olof
Publications (10 of 13) Show all publications
Svensson, P.-O., Nilsson, D., Forchheimer, R. & Berggren , M. (2008). A sensor circuit using reference-based conductance switching in organic electrochemical transistors. Applied Physics Letters, 93(20), 203301-
Open this publication in new window or tab >>A sensor circuit using reference-based conductance switching in organic electrochemical transistors
2008 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 93, no 20, p. 203301-Article in journal (Refereed) Published
Abstract [en]

Using organic electrochemical transistors as sensors, the sample-receptor reaction often induces moderate changes only in the drain current dynamics as the gate voltage level is switched. Here, we report an electrochemical sensor circuit including electrochemical transistors based on poly(3,4-ethylenedioxythiophene) doped with polystyrenesulfonate that puts out a static sensor response signal. The circuit includes a sample and a reference transistor that are both driven in the resistive mode at 0.1 V. Measurements were performed on aqueous salt electrolytes ranging from 100 to 500 mM concentrations. The signal-ON sensor circuit provides a tenfold increase in the sensitivity as compared to single transistor sensors.

Keyword
electrochemical sensors, electrolytes, organic semiconductors, transistors
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-16168 (URN)10.1063/1.2975377 (DOI)
Available from: 2009-01-08 Created: 2009-01-07 Last updated: 2017-12-14
Berggren, M., Forchheimer, R., Bobacka, J., Svensson, P.-O., Nilsson, D., Larsson, O. & Ivaska, A. (2008). PEDOT: PSS-Based Electrochemical Transistors for Ion-to-Electron Transduction and Sensor Signal Amplification (1ed.). In: D.A. Bernards, R. Owens, G. Malliaras (Ed.), Organic Semiconductors in Sensor Applications: (pp. 263-280). Springer
Open this publication in new window or tab >>PEDOT: PSS-Based Electrochemical Transistors for Ion-to-Electron Transduction and Sensor Signal Amplification
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2008 (English)In: Organic Semiconductors in Sensor Applications / [ed] D.A. Bernards, R. Owens, G. Malliaras, Springer, 2008, 1, p. 263-280Chapter in book (Other academic)
Abstract [en]

The chapter reports the use of organic electrochemical transistors in sensor applications. These transistors are excellent ion-to-electron transducers and can serve as very sensitive transducers in amperometric sensor applications. To further improve their sensitivity, we outline various amplification circuits all realized in organic electrochemical transistors.

Place, publisher, year, edition, pages
Springer, 2008 Edition: 1
Series
Springer Series in Materials Science, ISSN 0933-033X ; 107
National Category
Natural Sciences
Identifiers
urn:nbn:se:liu:diva-73405 (URN)10.1007/978-3-540-76314-7_9 (DOI)978-3-540-76314-7 (ISBN)978-3-540-76313-0 (ISBN)978-3-642-09517-7 (ISBN)
Available from: 2012-01-03 Created: 2012-01-03 Last updated: 2017-02-03Bibliographically approved
Robinson, N. D., Svensson, P.-O., Nilsson, D. & Berggren, M. (2006). On the Current Saturation Observed in Electrochemical Polymer Transistors. Journal of the Electrochemical Society, 153, 39-44
Open this publication in new window or tab >>On the Current Saturation Observed in Electrochemical Polymer Transistors
2006 (English)In: Journal of the Electrochemical Society, ISSN 0013-4651, E-ISSN 1945-7111, Vol. 153, p. 39-44Article in journal (Refereed) Published
Abstract [en]

Electrochemical transistors based on conjugated polymers are proposed as a path to printed electronics on paper. The electrochemical doping/dedoping of conjugated polymers clearly plays a role in the current vs potential (I-V) characteristics of these devices, however, the mechanism of current saturation (often referred to as pinch-off) is not clearly understood, and the relationship between electrochemical devices and field-effect transistors is unclear. This paper offers a semiempirical model of the steady-state behavior of electrochemical transistors and compares this model with experimental observations of potential and electrochromic measurements within a device to illustrate the science behind the functionality observed. ©2006 The Electrochemical Society

Keyword
electrochemical devices; transistors; conducting polymers; organic semiconductors; semiconductor doping
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-32350 (URN)10.1149/1.2172534 (DOI)18245 (Local ID)18245 (Archive number)18245 (OAI)
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2017-12-13
Robinson, N. D., Svensson, P.-O., Nilsson, D. & Berggren, M. (2005). Electrochromism as a tool for understanding the electrochemical polymer transistor. In: MRS Fall Meeting,2005.
Open this publication in new window or tab >>Electrochromism as a tool for understanding the electrochemical polymer transistor
2005 (English)In: MRS Fall Meeting,2005, 2005Conference paper, Published paper (Refereed)
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-32388 (URN)18288 (Local ID)18288 (Archive number)18288 (OAI)
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2017-02-03
Said, E., Robinson, N. D., Nilsson, D., Svensson, P.-O. & Berggren, M. (2005). Visualizing the Electric Field in Electrolytes Using Electrochromism from a Conjugated Polymer. Electrochemical and solid-state letters, 8(2), H12-H16
Open this publication in new window or tab >>Visualizing the Electric Field in Electrolytes Using Electrochromism from a Conjugated Polymer
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2005 (English)In: Electrochemical and solid-state letters, ISSN 1099-0062, E-ISSN 1944-8775, Vol. 8, no 2, p. H12-H16Article in journal (Refereed) Published
Abstract [en]

Electrochromic polymer films, employed as display elements, smart windows, and the base material for electrochemical electronic devices, can be addressed solely through ionic transport via an electrolyte, without direct electronic connection as typically employed in the above examples. We present a demonstration of induced electrochromism to quantify the direction and magnitude of the electric field in an electrolyte using poly(3,4-ethylenedioxythiophene) doped with polystyrene-sulfonate. After further development, this simple yet effective technique will be potentially applicable for optimizing batteries and fuel cells, as the active detection element in electrochemical sensors and as a detector in ionic separation in electrolytes (electrophoresis).

Place, publisher, year, edition, pages
The Electrochemical Society, 2005
Keyword
conducting polymers, electrolytes, electric fields, electrochromism, polymer films
National Category
Inorganic Chemistry
Identifiers
urn:nbn:se:liu:diva-14681 (URN)10.1149/1.1843751 (DOI)
Available from: 2008-12-04 Created: 2008-11-12 Last updated: 2017-12-13Bibliographically approved
Nilsson, D., Chen, M., Svensson, P.-O., Robinson, N. D., Kugler, T. & Berggren, M. (2003). All-organic electrochemical device with bi-stable and dynamic functionality. In: SPIE,2003 (pp. 468). Bellingham: SPIE Publication Service
Open this publication in new window or tab >>All-organic electrochemical device with bi-stable and dynamic functionality
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2003 (English)In: SPIE,2003, Bellingham: SPIE Publication Service , 2003, p. 468-Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Bellingham: SPIE Publication Service, 2003
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-32686 (URN)18606 (Local ID)18606 (Archive number)18606 (OAI)
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2017-02-03
Nilsson, D., Chen, M., Svensson, P.-O., Robinson, N. D., Kugler, T. & Berggren, M. (2003). All-organic electrochemical device with bi-stable and dynamic functionality. , 5051
Open this publication in new window or tab >>All-organic electrochemical device with bi-stable and dynamic functionality
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2003 (English)Conference paper, Published paper (Other academic)
Abstract [en]

We will present organic electrochemical transistors that show both bi-stable and dynamic current modulation. In electrochemical devices, both ions and electrons are used as charge carriers. The device is all-organic and has been realized using common printing techniques, such as screen-printing. As the substrate, both cellulose-based paper and polyester foil have been used. PEDOT:PSS (poly(3,4-ethylenedioxythiophene):Poly(styrene sulphonic acid)) is used as the conducting and electrochemical active material. PEDOT:PSS is switched between different redox states, corresponding to semi-conducting and conducting states. Operating voltages is below 2V and on/off ratios up to 105 have been reached (typical value is 5000). The operation of these devices does not depend on any critical dimensions, typical dimensions used are around 200 microns. With a certain geometrical design the dynamic transistor can be employed for frequency doubling. For the bi-stable transistor the modulation of the current is done by direct electronic contact, compared to the dynamic transistor that is modulated by induction of electrochemistry. The electrolyte in these devices can either be solidified or a liquid. The bi-stable device in combination with a layer of Nafion® as electrolyte demonstrates humidity sensor functionality. Since substrates based on paper and common printing techniques can be used for fabrication, this give rise to an environmental friendly and non-expensive device setup.

Keyword
Electrochemistry, Organic transistor sensor, Poly(3, 4-ethylenedioxythiophene) (PEDOT), Poly(styrene sulphonic acid) (PSS), Printing
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-46424 (URN)10.1117/12.484380 (DOI)
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-02-03
Svensson, P.-O., Nilsson, D., Robinson, N. D., Berggren, M. & Häll, J. (2003). Electrical characterisation of an organic electrochemical transistor. In: Polytronic,2003.
Open this publication in new window or tab >>Electrical characterisation of an organic electrochemical transistor
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2003 (English)In: Polytronic,2003, 2003Conference paper, Published paper (Refereed)
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-32693 (URN)18613 (Local ID)18613 (Archive number)18613 (OAI)
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2017-02-03
Andersson, P., Nilsson, D., Svensson, P.-O., Chen, M., Malmström, A., Remonen, T., . . . Berggren, M. (2003). Organic Electrochemical Smart Pixels. In: Materials Research Society Symposium Proceedings: (pp. D6.6-). , 736
Open this publication in new window or tab >>Organic Electrochemical Smart Pixels
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2003 (English)In: Materials Research Society Symposium Proceedings, 2003, Vol. 736, p. D6.6-Conference paper, Published paper (Refereed)
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-12764 (URN)
Available from: 2008-11-12 Created: 2008-11-12 Last updated: 2017-02-03
Andersson, P., Nilsson, D., Svensson, P.-O., Chen, M., Malmström, A., Remonen, T., . . . Berggren, M. (2003). Paper Electronics and Electronic Paper. In: SID Mid-Europe Chapter Meeting,2003.
Open this publication in new window or tab >>Paper Electronics and Electronic Paper
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2003 (English)In: SID Mid-Europe Chapter Meeting,2003, 2003Conference paper, Published paper (Refereed)
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-32695 (URN)18615 (Local ID)18615 (Archive number)18615 (OAI)
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2017-02-03
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