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Andersson Ersman, PeterORCID iD iconorcid.org/0000-0002-4575-0193
Publications (10 of 23) Show all publications
Keshmiri, V., Westerberg, D., Andersson Ersman, P., Sandberg, M., Forchheimer, R. & Tu, D. (2017). A Silicon-Organic Hybrid Voltage Equalizer for Supercapacitor Balancing. IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 7(1), 114-122, Article ID 7817802.
Open this publication in new window or tab >>A Silicon-Organic Hybrid Voltage Equalizer for Supercapacitor Balancing
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2017 (English)In: IEEE Journal on Emerging and Selected Topics in Circuits and Systems, ISSN 2156-3357, Vol. 7, no 1, p. 114-122, article id 7817802Article in journal (Refereed) Published
Abstract [en]

Cell voltage equalizers are an important part in electric energy storage systems comprising series-connected cells, for example, supercapacitors. Hybrid electronics with silicon chips and printed devices enables electronic systems with moderate performance and low cost. This paper presents a silicon-organic hybrid voltage equalizer to balance and protect series-connected supercapacitor cells during charging. Printed organic electrochemical transistors with conducting polymer poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) are utilized to bypass excess current when the supercapacitor cells are fully charged to desired voltages. In this study, low-cost silicon microcontrollers (ATtiny85) are programmed to sense voltages across the supercapacitor cells and control the organic electrochemical transistors to bypass charging current when the voltages exceed 1 V. Experimental results show that the hybrid equalizer with the organic electrochemical transistors works in dual-mode, switched-transistor mode or constant-resistor mode, depending on the charging current applied (0.3-100 mA). With the voltage equalizer, capacitors are charged equally regardless of their capacitances. This work demonstrates a low-cost hybrid solution for supercapacitor balancing modules at large-scale packs.

Keywords
Hybrid electronics, organic electrochemical transistors, printed electronics, supercapacitor balancing, voltage equalizer, Conducting polymers, Conductive plastics, Equalizers, Silicon, Styrene, Transistors, Charging current, Electric energies, Electronic systems, Hybrid solution, Poly(styrene sulfonate), Poly-3, 4-ethylenedioxythiophene, Series-connected, Capacitance
National Category
Computer and Information Sciences
Identifiers
urn:nbn:se:ri:diva-31012 (URN)10.1109/JETCAS.2016.2612724 (DOI)2-s2.0-85009877621 (Scopus ID)
Available from: 2017-09-04 Created: 2017-09-04 Last updated: 2018-07-19Bibliographically approved
Andersson Ersman, P., Westerberg, D., Tu, D., Nilsson, M., Åhlin, J., Eveborn, A., . . . Gustafsson, G. (2017). Screen printed digital circuits based on vertical organicelectrochemical transistors. Flex. Print. Electron., 2, Article ID 045008.
Open this publication in new window or tab >>Screen printed digital circuits based on vertical organicelectrochemical transistors
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2017 (English)In: Flex. Print. Electron., Vol. 2, article id 045008Article in journal (Refereed) Published
Abstract [en]

Vertical organic electrochemical transistors (OECTs) have been manufactured solely using screenprinting. The OECTs are based on PEDOT:PSS (poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonic acid)), which defines the active material for both the transistor channel and the gateelectrode. The resulting vertical OECT devices and circuits exhibit low-voltage operation, relativelyfast switching, small footprint and high manufacturing yield; the last three parameters are explainedby the reliance of the transistor configuration on a robust structure in which the electrolyte verticallybridges the bottom channel and the top gate electrode. Two different architectures of the verticalOECT have been manufactured, characterized and evaluated in parallel throughout this report. Inaddition to the experimental work, SPICE models enabling simulations of standalone OECTs andOECT-based circuits have been developed. Our findings may pave the way for fully integrated, lowvoltageoperating and printed signal processing systems integrated with e.g. printed batteries, solarcells, sensors and communication interfaces. Such technology can then serve a low-cost basetechnology for the internet of things, smart packaging and home diagnostics applications.

Keywords
electrochemical transistor, printed electronic circuit, PEDOT:PSS, electrolyte, SPICE model, hybrid electronics
National Category
Computer and Information Sciences
Identifiers
urn:nbn:se:ri:diva-33096 (URN)10.1088/2058-8585/aa903a (DOI)
Available from: 2018-01-16 Created: 2018-01-16 Last updated: 2018-07-04Bibliographically approved
Berggren, M., Simon, D. T., Nilsson, D., Dyreklev, P., Norberg, P., Nordlinder, S., . . . Hentzell, H. (2016). Browsing the Real World using Organic Electronics, Si-Chips, and a Human Touch. Advanced Materials, 28(10), 1911-1916
Open this publication in new window or tab >>Browsing the Real World using Organic Electronics, Si-Chips, and a Human Touch
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2016 (English)In: Advanced Materials, ISSN 0935-9648, E-ISSN 1521-4095, Vol. 28, no 10, p. 1911-1916Article in journal (Refereed) Published
Abstract [en]

Two different e-labels were developed to explore the feasibility and to identify scientifi c and engineering challenges of the Real-World-Web platform. First was a printed biosensor e-label, comprising Si-chips with an array of different printegrated devices, and second, an e-label to explore the feasibility of transferring data, through the human body, between a mobile device and different distributed e-labels, adhered onto the body or onto dedicated devices and surfaces of one's ambience. The silicon chips utilized in e-labels, include analogue and digital circuitry to receive and handle sensory input, to perform signal processing, and to transmit information to antennas and displays. When used, the e-label is turned on, and a sample is then added onto the sensor area. The display provides simple instructions and updated information to the user. All data handling, electrical probing, and analysis of the sensor is performed by the Si-chips, and the sensing data is finally shown in the printed display. The second e-label exemplifies an ID-tag for body area networks (BAN) communication applications, which, in part, is manufactured and integrated in the same way as the first e-label, but with another choice of Si-chips and capacitive antennas.

Keywords
Complex networks, Mobile devices, Signal processing, Communication infrastructure, Health status, Human touches, Local networks, Organic electronics, Physical world, Signal processing capability, Ubiquitous Mobile Network, Body sensor networks
National Category
Computer and Information Sciences
Identifiers
urn:nbn:se:ri:diva-32597 (URN)10.1002/adma.201504301 (DOI)2-s2.0-84953455468 (Scopus ID)
Note

Funding details: Knut och Alice Wallenbergs Stiftelse; Funding details: VINNOVA

Available from: 2017-11-07 Created: 2017-11-07 Last updated: 2018-07-04Bibliographically approved
Sani, N., Wang, X., Granberg, H., Andersson Ersman, P., Crispin, X., Dyreklev, P., . . . Berggren, M. (2016). Flexible lamination-fabricated ultra-high frequency diodes based on self-supporting semiconducting composite film of silicon micro-particles and nano-fibrillated cellulose. Scientific Reports, 6, Article ID 28921.
Open this publication in new window or tab >>Flexible lamination-fabricated ultra-high frequency diodes based on self-supporting semiconducting composite film of silicon micro-particles and nano-fibrillated cellulose
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2016 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, article id 28921Article in journal (Refereed) Published
Abstract [en]

Low cost and flexible devices such as wearable electronics, e-labels and distributed sensors will make the future "internet of things" viable. To power and communicate with such systems, high frequency rectifiers are crucial components. We present a simple method to manufacture flexible diodes, operating at GHz frequencies, based on self-adhesive composite films of silicon micro-particles (Si-ÎŒPs) and glycerol dispersed in nanofibrillated cellulose (NFC). NFC, Si-ÎŒPs and glycerol are mixed in a water suspension, forming a self-supporting nanocellulose-silicon composite film after drying. This film is cut and laminated between a flexible pre-patterned Al bottom electrode and a conductive Ni-coated carbon tape top contact. A Schottky junction is established between the Al electrode and the Si-ÎŒPs. The resulting flexible diodes show current levels on the order of mA for an area of 2 mm2, a current rectification ratio up to 4 × 103 between 1 and 2 V bias and a cut-off frequency of 1.8 GHz. Energy harvesting experiments have been demonstrated using resistors as the load at 900 MHz and 1.8 GHz. The diode stack can be delaminated away from the Al electrode and then later on be transferred and reconfigured to another substrate. This provides us with reconfigurable GHz-operating diode circuits.

National Category
Electrical Engineering, Electronic Engineering, Information Engineering Nano Technology
Identifiers
urn:nbn:se:ri:diva-16289 (URN)10.1038/srep28921 (DOI)2-s2.0-84977156842 (Scopus ID)
Note

cited By 0

Available from: 2016-10-24 Created: 2016-10-24 Last updated: 2018-10-02Bibliographically approved
Malti, A., Brooke, R., Liu, X., Zhao, D., Andersson Ersman, P., Fahlman, M., . . . Crispin, X. (2016). Freestanding electrochromic paper. Journal of Materials Chemistry C, 4(41), 9680-9686
Open this publication in new window or tab >>Freestanding electrochromic paper
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2016 (English)In: Journal of Materials Chemistry C, ISSN 2050-7526, E-ISSN 2050-7534, Vol. 4, no 41, p. 9680-9686Article in journal (Refereed) Published
Abstract [en]

Electrochromic displays based on conducting polymers exhibit higher contrasts and are cheaper, faster, more durable, and easier to synthesize as well as to process than their non-polymeric counterparts. However, current devices are typically based on thin electrochromic layers on top of a reflecting surface, which limits the thickness of the polymer layer to a few hundred nanometers. Here, we embed a light-scattering material within the electrochromic material to achieve a freestanding electrochromic paper-like electrode (50 to 500 μm). The device is based on a cellulose composite combining PEDOT:PSS as the electrochromic material and TiO2 nanoparticles as the reflecting material. Owing to the excellent refractive properties of TiO2, this nanocomposite is white in the neutral state and, when reduced, turns blue resulting in a color contrast around 30. The composite has a granular morphology and, as shown by AFM, an intermingling of TiO2 and PEDOT:PSS at the surface. Variation of the amount of TiO2 within the composite material is shown to result in a trade-off in optical and electrical properties. A proof-of-concept freestanding electrochromic device was fabricated by casting all layers successively to maximize the interlayer conformation. This freestanding device was found to be stable for over 100 cycles when ramped between 3 and -3 V.

Keywords
Conducting polymers, Economic and social effects, Electrochromic devices, Light scattering, Titanium dioxide, Electrochromic displays, Electrochromic layers, Electrochromic materials, Granular morphology, Light-scattering materials, Optical and electrical properties, Reflecting surface, Refractive properties, Electrochromism
National Category
Computer and Information Sciences
Identifiers
urn:nbn:se:ri:diva-32594 (URN)10.1039/c6tc03542f (DOI)2-s2.0-84992371722 (Scopus ID)
Available from: 2017-11-07 Created: 2017-11-07 Last updated: 2018-07-04Bibliographically approved
Ludvigsson, M., Leisner, P., Andersson Ersman, P., Dyreklev, P., Nilsson, D., Norberg, B., . . . Clausén, U. (2016). Laminated display based on printed elelctronics. In: : . Paper presented at Engineering Transparancy, Düsseldorf 20-21/9 2016.
Open this publication in new window or tab >>Laminated display based on printed elelctronics
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2016 (English)Conference paper, Oral presentation with published abstract (Refereed)
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:ri:diva-32928 (URN)
Conference
Engineering Transparancy, Düsseldorf 20-21/9 2016
Available from: 2017-12-29 Created: 2017-12-29 Last updated: 2018-10-02Bibliographically approved
Mitraka, E., Kergoat, L., Khan, Z. U., Fabiano, S., Douheret, O., Leclere, P., . . . Crispin, X. (2015). Solution processed liquid metal-conducting polymer hybrid thin films as electrochemical pH-threshold indicators (ed.). Journal of Materials Chemistry C, 3
Open this publication in new window or tab >>Solution processed liquid metal-conducting polymer hybrid thin films as electrochemical pH-threshold indicators
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2015 (English)In: Journal of Materials Chemistry C, ISSN 2050-7526, E-ISSN 2050-7534, Vol. 3Article in journal (Refereed) Published
National Category
Computer and Information Sciences
Identifiers
urn:nbn:se:ri:diva-31903 (URN)
Available from: 2017-10-24 Created: 2017-10-24 Last updated: 2018-07-04Bibliographically approved
Sani, N., Robertsson, M., Cooper, P., Wang, X., Svensson, M., Andersson Ersman, P., . . . Gustafsson, G. (2014). All-printed diode operating at 1.6 GHz (ed.). Proceedings of the National Academy of Sciences of the United States of America, 111, 11343-9
Open this publication in new window or tab >>All-printed diode operating at 1.6 GHz
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2014 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 111, p. 11343-9Article in journal (Refereed) Published
Abstract [en]

Printed electronics are considered for wireless electronic tags sensors within the future Internet-of-things (IoT) concept. As a consequence of the low charge carrier mobility of present printable organic inorganic semiconductors, the operational frequency of printed rectifiers is not high enough to enable direct communication powering between mobile phones printed e-tags. Here, we report an all-printed diode operating up to 1.6 GHz. The device, based on two stacked layers of Si NbSi2 particles, is manufactured on a flexible substrate at low temperature in ambient atmosphere. The high charge carrier mobility of the Si microparticles allows device operation to occur in the charge injection-limited regime. The asymmetry of the oxide layers in the resulting device stack leads to rectification of tunneling current. Printed diodes were combined with antennas electrochromic displays to form an all-printed e-tag. The harvested signal from a Global System for Mobile Communications mobile phone was used to update the display. Our findings demonstrate a new communication pathway for printed electronics within IoT applications._x000D_

National Category
Computer and Information Sciences
Identifiers
urn:nbn:se:ri:diva-31952 (URN)
Available from: 2017-10-24 Created: 2017-10-24 Last updated: 2018-07-04Bibliographically approved
Andersson Ersman, P. (2014). Integration of printed electronic components into versatile systems on flexible substrates. In: : . Paper presented at Swedish System-on-Chip Conference 2014, invited speaker, Vadstena, Sweden. Vadstena, Sweden, Monday, May 12, 2014.
Open this publication in new window or tab >>Integration of printed electronic components into versatile systems on flexible substrates
2014 (English)Conference paper, Oral presentation only (Refereed)
National Category
Chemical Engineering
Identifiers
urn:nbn:se:ri:diva-25276 (URN)
Conference
Swedish System-on-Chip Conference 2014, invited speaker, Vadstena, Sweden. Vadstena, Sweden, Monday, May 12, 2014
Available from: 2018-03-28 Created: 2016-10-31 Last updated: 2018-03-28Bibliographically approved
Andersson Ersman, P., Nilsson, D., Kawahara, J., Gustafsson, G. & Berggren, M. (2013). Fast-switching all-printed organic electrochemical transistors (ed.). Organic electronics, 14(5), 1276-80
Open this publication in new window or tab >>Fast-switching all-printed organic electrochemical transistors
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2013 (English)In: Organic electronics, ISSN 1566-1199, E-ISSN 1878-5530, Vol. 14, no 5, p. 1276-80Article in journal (Refereed) Published
Abstract [en]

Symmetric fast (ˆ¼5 ms) on-to-off off-to-on drain current switching characteristics have been obtained in screen printed organic electrochemical transistors (OECTs) including PEDOT:PSS (poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonic acid)) as the active transistor channel material. Improvement of the drain current switching characteristics is made possible by including a carbon conductor layer on top of PEDOT:PSS at the drain electrode that is in direct contact with both the channel the electrolyte of the OECT. This carbon conductor layer suppresses the effects from a reduction front that is generated in these PEDOT:PSS-based OECTs. In the off-state of these devices this reduction front slowly migrate laterally into the PEDOT:PSS drain electrode, which make off-to-on switching slow. The OECT including carbon electrodes was manufactured using only standard printing process steps may pave the way for fully integrated organic electronic systems that operate at low voltages for applications such as logic circuits, sensors active matrix addressed displays._x000D_

National Category
Computer and Information Sciences
Identifiers
urn:nbn:se:ri:diva-31998 (URN)10.1016/j.orgel.2013.02.027 (DOI)
Available from: 2017-10-24 Created: 2017-10-24 Last updated: 2018-07-04Bibliographically approved
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-4575-0193

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