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- Smith, Anderson David, 1985, et al.
(författare)
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Toward CMOS compatible wafer-scale fabrication of carbon-based microsupercapacitors for IoT
- 2018
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Ingår i: Journal of Physics: Conference Series. - : IOP Publishing. - 1742-6588 .- 1742-6596. ; 1052:1
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Konferensbidrag (refereegranskat)abstract
- This work presents a wafer-scale method of microsupercapacitor (MSC) fabrication. Deposition of the electrode precursor, i.e. graphene oxide, is accomplished through spin-coating which allows for potential application in CMOS compatible processes for future integrated on-chip energy storage systems. Our MSCs have an areal capacitance of 0.4 mF/cm2at 10 μA, which is a very promising result. Further, the MSC has good rate capability as its capacitance decreases by only 0.03 mF/cm2when the current increases to 50 μA. The MSCs have a maximum energy density of 0.04 μWh/cm2and a maximum power density as high as 96 μW/cm2. Additionally, the wafer-scale process demonstrates industrial viability.
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| 3. |
- Staaf, Henrik, 1976, et al.
(författare)
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Verification of Self-Tuning 4DOF Piezoelectric Energy Harvester with Enhanced Bandwidth
- 2018
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Ingår i: Journal of Physics: Conference Series. - : IOP Publishing. - 1742-6588 .- 1742-6596. ; 1052:To be published in Journal of Physics Conference S
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Konferensbidrag (refereegranskat)abstract
- In this paper, we present an analytical model to predict enhanced bandwidth for a piezoelectric energy harvester with self-tuning, accomplished by a sliding mass. The model predicts that by implementing asymmetry of different piezoelectric cantilever lengths , the bandwidth can theoretically approach 60 Hz. Validation measurements demonstrate an increased 3dB bandwidth up to 21 Hz with 150 mW, by configuration 23/17 mm in open length – providing sufficient power for a ZigBee to continually transmit.
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| 4. |
- Vyas, Agin, 1992, et al.
(författare)
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Surface Roughening with Iron Nanoparticles for Promoted Adhesion of Spin Coated Microsupercapacitor Electrodes
- 2019
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Ingår i: MRS Advances. - : Springer Science and Business Media LLC. - 2059-8521. ; 4:23, s. 1335-1340
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Konferensbidrag (refereegranskat)abstract
- Microsupercapacitors (MSCs) are miniaturized energy storage devices that can be integrated in an on-chip platform as a component of a power supply for Internet of things' sensors. Integration of these on-chip MSCs require them to be fabricated through CMOS compatible fabrication techniques such as spin coating. One of the biggest challenges in spin coated MSCs is the poor surface adhesion. In this work, we present a CMOS compatible electrode deposition process with enhanced adhesion and retention for reduced graphene oxide (rGO) using spin coating. In order to improve the adhesion and surface uniformity of the deposited electrode material, the surface of Si/SiO 2 wafers was subjected to roughening through Fe nanoparticle formation. A 4 nm thick Fe layer deposition substantially magnified the average mean surface roughness of the substrates. In comparison with substrates without the Fe deposition, the treated ones have more than 300% improvement in surface coverage and rGO mass retention after sonication testing. These results suggest that the surface roughening has a positive influence on electrode deposition via a spin-coating method.
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| 6. |
- Anderson, Helén, 1954-, et al.
(författare)
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A meta analysis of Swedish doctoral dissertations on mergers and acquisitions
- 2009
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Ingår i: IMP Asia 2009. - Kuala Lumpur : IMP.
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Konferensbidrag (refereegranskat)abstract
- Mergers and acquisitions (M&As) are complex and frequent business phenomena. Over the years, quite some research has been made on many different aspects of mergers and acquisitions, but the phenomenon is still far from understood. In this paper we analyze in total 57 doctoral dissertations that focus on mergers and acquisitions that have been presented and defended at Swedish Universities and Business Schools between the years 1971-2008. Our aim is to contribute to a more comprehensive picture of the state-of-the-art of the existing body of knowledge on mergers and acquisitions. In this first analysis we give a general overview of the dissertations.
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| 10. |
- Anderson, Helén, 1954-, et al.
(författare)
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The stake of customers and suppliers in mergers and acquisition
- 2016
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Konferensbidrag (refereegranskat)abstract
- No business day ends without news on a merger or an acquisition and most managers have experience of acquisitions and/or mergers. Mergers and acquisitions (M&A), that is, the acquisition of (the majority of) the shares in a target company or the legal unification of two organizations into one, are recurrent phenomena in business life (Cartwright and Schoenberg, 2006; Meglio and Risberg, 2010) appearing in waves (Martynova and Renneboog 2008; Shleifer and Vishny 1991). M&A not only result in changed shareholder value, but also in changed industry structures, reconsidered competitive landscapes, and form new key players in markets (Chandler, 1962; Cox, 2006; Finkelstein, 1997).Stakeholder research (e.g., Parmar, Freeman, Harrison, Wicks, Prnell and de Colle, 2010; Rowley, 1997) emphasizes the multi-actor, multi-interest perspective to strategic decisions. A value chain perspective on firms suggests customers and suppliers as important stakeholders of firms (e. g., Normann and Ramirez, 1993) and indicates that customers and suppliers may actually act vis-à-vis an M&A. But the picture of customers and suppliers as tradable assets or potential beneficiaries from the acquirer’s point of view seems to dominate. In this paper we particularly address the stake at stake for customers and suppliers in M&A. The following questions are asked: To what extent are customers and suppliers acknowledged in the M&A literature? How are customer and supplier stakes in M&A described?
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