Agency: GTR | Branch: EPSRC | Program: | Phase: Research Grant | Award Amount: 4.56M | Year: 2016
Today we use many objects not normally associated with computers or the internet. These include gas meters and lights in our homes, healthcare devices, water distribution systems and cars. Increasingly, such objects are digitally connected and some are transitioning from cellular network connections (M2M) to using the internet: e.g. smart meters and cars - ultimately self-driving cars may revolutionise transport. This trend is driven by numerous forces. The connection of objects and use of their data can cut costs (e.g. allowing remote control of processes) creates new business opportunities (e.g. tailored consumer offerings), and can lead to new services (e.g. keeping older people safe in their homes). This vision of interconnected physical objects is commonly referred to as the Internet of Things. The examples above not only illustrate the vast potential of such technology for economic and societal benefit, they also hint that such a vision comes with serious challenges and threats. For example, information from a smart meter can be used to infer when people are at home, and an autonomous car must make quick decisions of moral dimensions when faced with a child running across on a busy road. This means the Internet of Things needs to evolve in a trustworthy manner that individuals can understand and be comfortable with. It also suggests that the Internet of Things needs to be resilient against active attacks from organised crime, terror organisations or state-sponsored aggressors. Therefore, this project creates a Hub for research, development, and translation for the Internet of Things, focussing on privacy, ethics, trust, reliability, acceptability, and security/safety: PETRAS, (also suggesting rock-solid foundations) for the Internet of Things. The Hub will be designed and run as a social and technological platform. It will bring together UK academic institutions that are recognised international research leaders in this area, with users and partners from various industrial sectors, government agencies, and NGOs such as charities, to get a thorough understanding of these issues in terms of the potentially conflicting interests of private individuals, companies, and political institutions; and to become a world-leading centre for research, development, and innovation in this problem space. Central to the Hub approach is the flexibility during the research programme to create projects that explore issues through impactful co-design with technical and social science experts and stakeholders, and to engage more widely with centres of excellence in the UK and overseas. Research themes will cut across all projects: Privacy and Trust; Safety and Security; Adoption and Acceptability; Standards, Governance, and Policy; and Harnessing Economic Value. Properly understanding the interaction of these themes is vital, and a great social, moral, and economic responsibility of the Hub in influencing tomorrows Internet of Things. For example, a secure system that does not adequately respect privacy, or where there is the mere hint of such inadequacy, is unlikely to prove acceptable. Demonstrators, like wearable sensors in health care, will be used to explore and evaluate these research themes and their tension. New solutions are expected to come out of the majority of projects and demonstrators, many solutions will be generalisable to problems in other sectors, and all projects will produce valuable insights. A robust governance and management structure will ensure good management of the research portfolio, excellent user engagement and focussed coordination of impact from deliverables. The Hub will further draw on the expertise, networks, and on-going projects of its members to create a cross-disciplinary language for sharing problems and solutions across research domains, industrial sectors, and government departments. This common language will enhance the outreach, development, and training activities of the Hub.
News Article | February 23, 2017
DuPont Electronics & Communications (DuPont) and Holst Centre today announced the third extension of their successful long-term collaboration, which is focused on advanced materials for the printed electronics industry. As a full partner in the Printed Electronics program, DuPont will contribute new materials and research samples targeted toward Holst’s active projects in the areas of wearable electronics, in-mold electronics, consumer electronics and healthcare. “We’re pleased to extend our collaboration with Holst Centre, continuing to work together in advancing new developments in printed electronics,” said Kerry Adams, printed electronics market segment manager, DuPont. “In addition to advancing the technology, the collaboration provides us with valuable insights into the needs and requirements of other Holst partners, including end-users and equipment suppliers, enabling open innovation and accelerating product and application development.” In this next phase, the emphasis of the collaboration will be on developing and testing complete complementary material systems and successfully creating working demonstrators and prototypes, with the development of commercial products as the end goal. In particular, the collaboration will focus on screen printed and ink-jet electronic inks and pastes, flat bed and roll-to-roll processing, and conventional oven as well as photonic curing/sintering systems. Over the life of the DuPont/Holst Centre collaboration, results have included the development of new nano-Ag inks and pastes, leading to the commercialization of DuPont’s best in class conductive ink-jet silver ink, PE410, announced and featured at LOPEC in Munich, Germany, in April 2016. Most recently, Holst presented their wearable smart shirt design in the DuPont booth at the Wearables Expo in Tokyo, Japan, from Jan. 18-20, 2017. Other achievements have included the successful implementation of DuPont inks and pastes enabling production of smart garments, flexible sensors and smart blister medical packaging, as well as in-mold electronics, and Organic Photovoltaic (OPV) and Organic Light Emitting Diode (OLED) lighting demos and prototypes. “The collaboration between DuPont and Holst Centre continues to drive exciting advancements in printed electronics,” said Jeroen van den Brand, program director ‘printed electronics’, Holst Centre. “We are excited to continue to explore new technologies and opportunities alongside a recognized industry leader.” DuPont will showcase the latest developments in wearable electronics, in-mold electronics, consumer electronics and healthcare at stand B0 308 at LOPEC, the International Exhibition and Conference for Printed Electronics, March 28 – 30, 2017, in Munich, Germany. Holst Centre is an independent open-innovation R&D centre that develops generic technologies for wireless sensor technologies and flexible electronics, that contribute to answering global societal challenges in healthcare, lifestyle, sustainability and the Internet of Things. A key feature of Holst Centre is its partnership model with industry and academia around shared roadmaps and programs. It is this kind of cross-fertilization that enables Holst Centre to tune its scientific strategy to industrial needs. Holst Centre was set up in 2005 by imec (Flanders, Belgium) and TNO (The Netherlands) with support from the Dutch Ministry of Economic Affairs and the Government of Flanders. Holst Centre has over 200 employees from around 28 nationalities and a commitment from more than 50 industrial partners. For more information about Holst Centre, please visit http://www.holstcentre.com. DuPont Electronics & Communications is a leading innovator and high-volume supplier of electronic inks and pastes that offers a broad range of printed electronic materials commercially available today. The growing portfolio of DuPont electronic inks is used in many applications, including forming conductive traces, capacitor and resistor elements, and dielectric and encapsulating layers that are compatible with many substrate surfaces including polymer, glass and ceramic. For more information, visit http://www.advancedmaterials.dupont.com. DuPont (NYSE: DD) has been bringing world-class science and engineering to the global marketplace in the form of innovative products, materials, and services since 1802. The company believes that by collaborating with customers, governments, NGOs, and thought leaders we can help find solutions to such global challenges as providing enough healthy food for people everywhere, decreasing dependence on fossil fuels, and protecting life and the environment. For additional information about DuPont and its commitment to inclusive innovation, please visit http://www.dupont.com. Forward-Looking Statements: This document contains forward-looking statements which may be identified by their use of words like “plans,” “expects,” “will,” “believes,” “intends,” “estimates,” “anticipates” or other words of similar meaning. All statements that address expectations or projections about the future, including statements about the company’s strategy for growth, product development, regulatory approval, market position, anticipated benefits of recent acquisitions, timing of anticipated benefits from restructuring actions, outcome of contingencies, such as litigation and environmental matters, expenditures and financial results, are forward-looking statements. Forward-looking statements are not guarantees of future performance and are based on certain assumptions and expectations of future events which may not be realized. Forward-looking statements also involve risks and uncertainties, many of which are beyond the company’s control. Some of the important factors that could cause the company’s actual results to differ materially from those projected in any such forward-looking statements are: fluctuations in energy and raw material prices; failure to develop and market new products and optimally manage product life cycles; ability to respond to market acceptance, rules, regulations and policies affecting products based on biotechnology and, in general, for products for the agriculture industry; outcome of significant litigation and environmental matters, including realization of associated indemnification assets, if any; failure to appropriately manage process safety and product stewardship issues; changes in laws and regulations or political conditions; global economic and capital markets conditions, such as inflation, interest and currency exchange rates; business or supply disruptions; security threats, such as acts of sabotage, terrorism or war, natural disasters and weather events and patterns which could affect demand as well as availability of products for the agriculture industry; ability to protect and enforce the company’s intellectual property rights; successful integration of acquired businesses and separation of underperforming or non-strategic assets or businesses; and risks related to the agreement entered on December 11, 2015, with The Dow Chemical Company pursuant to which the companies have agreed to effect an all-stock merger of equals, including the completion of the proposed transaction on anticipated terms and timing, the ability to fully and timely realize the expected benefits of the proposed transaction and risks related to the intended business separations contemplated to occur after the completion of the proposed transaction. The company undertakes no duty to update any forward-looking statements as a result of future developments or new information.
Gelinck G.,Holst Center |
Heremans P.,IMEC |
Heremans P.,Catholic University of Leuven |
Nomoto K.,Sony Corporation |
Anthopoulos T.D.,Imperial College London
Advanced Materials | Year: 2010
Organic thin-film transistors (OTFTs) offer unprecedented opportunities for implementation in a broad range of technological applications spanning from large-volume microelectronics and optical displays to chemical and biological sensors. In this Progress Report, we review the application of organic transistors in the fields of flexible optical displays and microelectronics. The advantages associated with the use of OTFT technology are discussed with primary emphasis on the latest developments in the area of active-matrix electrophoretic and organic light-emitting diode displays based on OTFT backplanes and on the application of organic transistors in microelectronics including digital and analog circuits. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Zhang Y.,Zernike Institute for Advanced Materials |
Blom P.W.M.,Zernike Institute for Advanced Materials |
Blom P.W.M.,Holst Center
Applied Physics Letters | Year: 2011
We investigate the electron and hole transport in poly[(9,9-di-n- octylfluorenyl-2,7-diyl)-alt-(benzo[2,1,3]thiadiazol-4,8-diyl)] (F8BT). An Ohmic hole contact on F8BT is achieved by using the high work function anode MoO 3 as hole injection contact, enabling the occurrence of space-charge limited currents. The electron transport in F8BT is trap-limited and the traps can be deactivated using n -type doping by decamethylcobaltocene (DMC). Due to the alignment of the energy levels of DMC and F8BT the electrons from the DMC donor not only fill the traps but also fill up the lowest unoccupied molecular orbital of F8BT such that the electron transport can be enhanced beyond the hole transport. © 2011 American Institute of Physics.
Nicolai H.T.,Zernike Institute for Advanced Materials |
Hof A.,Zernike Institute for Advanced Materials |
Blom P.W.M.,Zernike Institute for Advanced Materials |
Blom P.W.M.,Holst Center
Advanced Functional Materials | Year: 2012
The charge transport and recombination in white-emitting polymer light- emitting diodes (PLEDs) are studied. The PLED investigated has a single emissive layer consisting of a copolymer in which a green and red dye are incorporated in a blue backbone. From single-carrier devices the effect of the green- and red-emitting dyes on the hole and electron transport is determined. The red dye acts as a deep electron trap thereby strongly reducing the electron transport. By incorporating trap-assisted recombination for the red emission and bimolecular Langevin recombination for the blue emission, the current and light output of the white PLED can be consistently described. The color shift of single-layer white-emitting PLEDs can be explained by the different voltage dependencies of trap-assisted and bimolecular recombination. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
De Boeck J.,IMEC |
De Boeck J.,Holst Center
Digest of Technical Papers - IEEE International Solid-State Circuits Conference | Year: 2011
In recent years, Personalized, Predictive, Preventive, and Participatory healthcare have become more than just buzzwords. Silicon is playing an important enabling role in this gradual, but certain revolution of our healthcare system: Silicon will become more essential, in view of the many challenges in realizing ubiquitous monitoring, real-time diagnostics, and patient-centric therapies. By reviewing world-wide technology breakthroughs, as well as healthcare-related trials with wireless sensors in Body-Area-Network (BAN) configurations, we will demonstrate that application validation for personal diagnostics and theranostic products is driving game-changing circuit and system innovation. Visionary applications such as brain-computer interfaces sound like magic! However, with every new generation of technology and application algorithms, wearable wireless systems become less obtrusive, higher performing, and more autonomous. The envisaged large-scale deployment of wearable healthcare and lifestyle add-ons that can monitor systemic factors such as stress and emotions, will revolutionize how we live, play, and work. But, none of these developments is heralding a "Brave New World" instead, they will foster and strengthen the role and impact of each individual along the path to a longer, healthier and happier life. © 2011 IEEE.
Michels J.J.,Holst Center |
Moons E.,Karlstad University
Macromolecules | Year: 2013
The formation of the surface-induced stratified lamellar composition profile experimentally evidenced in spincoated layers of the photovoltaic donor-acceptor blend consisting of poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-5,5- (4′,7′-di-2-thienyl-2′,1′,3′-benzothiadiazole]/ phenyl-C61-butyric acid methyl ester (APFO-3/PCBM), as processed from chloroform, is simulated using square gradient theory extended with terms describing the interaction of the blend components with the air and substrate interfaces. The surface energy contributions have been formulated based on an enthalpic nearest-neighbor model which allows integration of common surface tension theory and experimentally accessible surface energies of the fluid phase constituents with a mean field description of a multicomponent blend confined by substrate and air interfaces. Using estimates for the quench depth and transport properties of the blend components as a function of polymer concentration, the time-resolved numerical simulations yield results that compare favorably with experimental observations, both in terms of the number of lamellae as a function of the blend layer thickness and their compositional order. The effect of blend ratio is reproduced as well, the lamellar pattern becoming more pronounced if the amount of PCBM increases relative to APFO-3. © 2013 American Chemical Society.
Moonen P.F.,MESA Institute for Nanotechnology |
Yakimets I.,Holst Center |
Huskens J.,MESA Institute for Nanotechnology
Advanced Materials | Year: 2012
In this report, the development of conventional, mass-printing strategies into high-resolution, alternative patterning techniques is reviewed with the focus on large-area patterning of flexible thin-film transistors (TFTs) for display applications. In the first part, conventional and digital printing techniques are introduced and categorized as far as their development is relevant for this application area. The limitations of conventional printing guides the reader to the second part of the progress report: alternative-lithographic patterning on low-cost flexible foils for the fabrication of flexible TFTs. Soft and nanoimprint lithography-based patterning techniques and their limitations are surveyed with respect to patterning on low-cost flexible foils. These show a shift from fabricating simple microlense structures to more complicated, high-resolution electronic devices. The development of alternative, low-temperature processable materials and the introduction of high-resolution patterning strategies will lead to the low-cost, self-aligned fabrication of flexible displays and solar cells from cheaper but better performing organic materials. In this Progress Report, the development of conventional, mass-printing strategies into high-resolution, alternative-lithographic patterning techniques is reviewed with the focus on large-area patterning of thin-film transistors on low-cost flexible substrates. Conventional and alternative, high-resolution soft and nanoimprint lithography-based techniques are covered, their benefits, requirements and limitations are discussed, and recent developments and electronic device applications, mainly in the direction of displays, on flexible foils are give. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Offermans P.,Holst Center |
Crego-Calama M.,Holst Center |
Brongersma S.H.,Holst Center
Nano Letters | Year: 2010
Nanowire-based devices show great promise for next generation (bio)chemical sensors as evidenced by the large volume of high-quality publications. Here, a nanoscale gas sensing device is presented, based on gold-free grown vertical InAs nanowire arrays. The nanowires are contacted Ohmically in their as-grown locations using an air bridge construction, leaving the nanowire surface free for gas adsorption. Noise measurements were performed to determine the measurement resolution for gas detection. These devices are sensitive to NO 2 concentrations well below 100 ppb at room temperature. NO 2 exposure leads to both a reduction in carrier density and electron mobility. © 2010 American Chemical Society.
Visser H.J.,Holst Center |
Vullers R.J.M.,Holst Center
Proceedings of the IEEE | Year: 2013
This paper presents an overview of principles and requirements for powering wireless sensors by radio-frequency (RF) energy harvesting or transport. The feasibility of harvesting is discussed, leading to the conclusion that RF energy transport is preferred for powering small sized sensors. These sensors are foreseen in future Smart Buildings. Transmitting in the ISM frequency bands, respecting the transmit power limits ensures that the International Commission on Non-Ionizing Radiation Protection (ICNIRP) exposure limits are not exceeded. With the transmit side limitations being explored, the propagation channel is next discussed, leading to the observation that a better than free-space attenuation may be achieved in indoors line-of-sight environments. Then, the components of the rectifying antenna (rectenna) are being discussed: rectifier, dc-dc boost converter, and antenna. The power efficiencies of all these rectenna subcomponents are being analyzed and finally some examples are shown. To make RF energy transport a feasible powering technology for low-power sensors, a number of precautions need to be taken. The propagation channel characteristics need to be taken into account by creating an appropriate transmit antenna radiation pattern. All subcomponents of the rectenna need to be impedance matched, and the power transfer efficiencies of the rectifier and the boost converter need to be optimized. © 1963-2012 IEEE.