This proposal seeks funding to create a Centre for Doctoral Training (CDT) in Connected Electronic and Photonic Systems (CEPS). Photonics has moved from a niche industry to being embedded in the majority of deployed systems, ranging from sensing, biophotonics and advanced manufacturing, through communications from the chip-to-chip to transcontinental scale, to display technologies, bringing higher resolution, lower power operation and enabling new ways of human-machine interaction. These advances have set the scene for a major change in commercialisation activity where electronics photonics and wireless converge in a wide range of information, sensing, communications, manufacturing and personal healthcare systems. Currently manufactured systems are realised by combining separately developed photonics, electronic and wireless components. This approach is labour intensive and requires many electrical interconnects as well as optical alignment on the micron scale. Devices are optimised separately and then brought together to meet systems specifications. Such an approach, although it has delivered remarkable results, not least the communications systems upon which the internet depends, limits the benefits that could come from systems-led design and the development of technologies for seamless integration of electronic photonics and wireless systems. To realise such connected systems requires researchers who have not only deep understanding of their specialist area, but also an excellent understanding across the fields of electronic photonics and wireless hardware and software. This proposal seeks to meet this important need, building upon the uniqueness and extent of the UCL and Cambridge research, where research activities are already focussing on higher levels of electronic, photonic and wireless integration; the convergence of wireless and optical communication systems; combined quantum and classical communication systems; the application of THz and optical low-latency connections in data centres; techniques for the low-cost roll-out of optical fibre to replace the copper network; the substitution of many conventional lighting products with photonic light sources and extensive application of photonics in medical diagnostics and personalised medicine. Many of these activities will increasingly rely on more advanced systems integration, and so the proposed CDT includes experts in electronic circuits, wireless systems and software. By drawing these complementary activities together, and building upon initial work towards this goal carried out within our previously funded CDT in Integrated Photonic and Electronic Systems, it is proposed to develop an advanced training programme to equip the next generation of very high calibre doctoral students with the required technical expertise, responsible innovation (RI), commercial and business skills to enable the £90 billion annual turnover UK electronics and photonics industry to create the closely integrated systems of the future. The CEPS CDT will provide a wide range of methods for learning for research students, well beyond that conventionally available, so that they can gain the required skills. In addition to conventional lectures and seminars, for example, there will be bespoke experimental coursework activities, reading clubs, roadmapping activities, responsible innovation (RI) studies, secondments to companies and other research laboratories and business planning courses. Connecting electronic and photonic systems is likely to expand the range of applications into which these technologies are deployed in other key sectors of the economy, such as industrial manufacturing, consumer electronics, data processing, defence, energy, engineering, security and medicine. As a result, a key feature of the CDT will be a developed awareness in its student cohorts of the breadth of opportunity available and the confidence that they can make strong impact thereon.

Large-Area Electronics is a branch of electronics in which functionality is distributed over large-areas, much bigger than the dimensions of a typical circuit board. Recently, it has become possible to manufacture electronic devices and circuits using a solution-based approach in which a "palette" of functional "inks" is printed on flexible webs to create the multi-layered patterns required to build up devices. This approach is very different from the fabrication and assembly of conventional silicon-based electronics and offers the benefits of lower-cost manufacturing plants that can operate with reduced waste and power consumption, producing electronic systems in high volume with new form factors and features. Examples of "printed devices" include new kinds of photovoltaics, lighting, displays, sensing systems and intelligent objects. We use the term "large-area electronics" (LAE) rather than "printable electronics" because many electronic systems require both conventional and printed electronics, benefitting from the high performance of the conventional and the ability of the printable to create functionality over large-areas cost-effectively. Great progress has been made over the last 20 years in producing new printable functional materials with suitable performance and stability in operation but despite this promise, the emerging industry has been slow to take-off, due in part to (i) manufacturing scale-up being significantly more challenging than expected and (ii) the current inability to produce complete multifunctional electronic systems as required in several early markets, such as brand enhancement and intelligent packaging. Our proposed Centre for Innovative Manufacturing in Large-Area Electronics will tackle these challenges to support the emergence of a vibrant UK manufacturing industry in the sector. Our vision has four key elements: - to address the technical challenges of low-cost manufacturing of multi-functional LAE systems - to develop a long-term research programme in advanced manufacturing processes aimed at ongoing reduction in manufacturing cost and improvement in system performance. - to support the scale-up of technologies and processes developed in and with the Centre by UK manufacturing industry - to promote the adoption of LAE technologies by the wider UK electronics manufacturing industry Our Centre for Innovative Manufacturing brings together 4 UK academic Centres of Excellence in LAE at the University of Cambridge (Cambridge Integrated Knowledge Centre, CIKC), Imperial College London (Centre for Plastic Electronics, CPE), Swansea University (Welsh Centre for Printing and Coating, WCPC) and the University of Manchester (Organic Materials Innovation Centre, OMIC) to create a truly representative national centre with world-class expertise in design, development, fabrication and characterisation of a wide range of devices, materials and processes.

We propose a Centre for Doctoral Training in New and Sustainable PV. It will support the transformation of PV in the UK will that will in turn aid the country to achieve its renewal energy obligations, and will generate jobs in the technology sectors as well as local manufacturing and installation. The CDT allows for the distributed nature of PV research in the UK with a multi-centre team of seven partners covering all aspects of PV research from novel materials through new device architectures to PV systems and performance. The PhD projects and training span engineering and physical science expertise in materials and device physics, electronic engineering, physical and synthetic chemistry, operations management and manufacturing. The CDT graduates will be capable of transforming state of the art R&D across the PV technologies and, in so doing, contribute to the production and implementation of improved PV products and systems. All partners are members of the SuperSolar Hub and hence already coordinate integrated PV research and training. Students in the CDT will join a thriving research community. The team has unrivalled access to shared facilities in the best state of the art laboratories in the UK. Our group approach brings together expertise with a breadth and depth for training and research that could not be assembled in any other way. Moreover, the collaboration allows us to cut across the traditional boundaries in PV and enables exciting research vectors to be followed in New and Sustainable PV CDT agenda. International collaborations and formal exchange agreements will emphasise the global aspects of advanced research that are important for the development of a leadership group. The CDT members will interact with related research themes such as photochemical conversion of fuels for energy and other applications, and heating and cooling by solar radiation and will be a proactive member of the UK wide Network of Energy CDTs. Our goal is to train the best researchers with a flexible mindset able to communicate across different disciplines and be leaders in the emerging PV industry for advanced technologies. We will provide the training required for graduates to join the sustainable energy and PV sectors. We will establish a real identity of purpose and commonality in each cohort through a training programme designed to give students an understanding of all aspects of PV, including implications for society and an experience of a commercial environment. Students will be provided with a bespoke curriculum and training programme that exposes them to: (i) underpinning fundamentals across all the relevant disciplines, (ii) current state-of-the-art in knowledge and challenges in scale-up and systems, and (iii) unparalleled opportunities to engage in leading-edge interdisciplinary research projects as part of a national team. We will create a doctoral training environment in which students benefit from leading academic expertise and world-class facilities to develop their knowledge as well as the tools to innovate and create within their selected research theme. The unique cross functional skill-sets that our graduates will have will make them highly valuable to the academic community seeking to address ambitious basic manufacturing research challenges, and to industry, who have an urgent need for appropriately trained scientists and engineers able to support PV technologies within their commercial operations. To allow the students the chance to develop a common sense of purpose, each cohort will attend training events together. Courses will cover fundamental aspects common to all PV technologies and also advanced courses based on the partners' research expertise. There will be industrial and international placements. Coherence across the CDT will be aided by a virtual collaboration medium containing webinars and video lectures and pages where students and staff can collaborate via groups, and online forums.

In November 2016 the UK Government mounted a technical trade mission to India. During this visit the delegation witnessed some of the worst aerial pollution in Delhi's history. At times the air quality was contaminated with 999 mg per cubic metre of particulates almost five times the emission consent of an iron making coke oven! India will be the World's largest economy potentially as early as 2030 requiring a total transformation in energy generation. At the Trade summit Prime Minister Modi detailed a vision for India to leapfrog other countries reliance on fossil fuels harnessing global science implemented locally. As such the timing of SUNRISE could not be better. SUNRISE is an ambitious programme to rapidly accelerate and prove low cost printed PV and tandem solar cells for use in off grid Indian communities within the lifetime of the project. SUNRISE will combine world leading UK research teams from Imperial (Durrant/Nelson), Cambridge (Friend), Oxford (Snaith) a key Indo UK research leader (Uppadaya at Brunel) with an internationally leading photovoltaic scaling activity (SPECIFIC IKC at Swansea University (Worsley/Watson)) and key Indian institutions notably IIT Delhi (Dutta/Pathak), NPL Delhi (Chand, Gupta), CSIR Hydrabad (Giribabu, Narayan), IISER Pune (Ogale), IIT Kanpur (Garg, Gupta). The research impact of scaleable and stable low cost metal mounted PV products will be supported by technology demonstration at five off grid village communities (each of up to 20000 people). The EPSRC JUICE consortium will support the systems integration and electrical storage elements to create real technology demonstrators using local manufacturing supply chains (Tata Cleantech Capital and Tata Trust). In addition to electrical infrastructure the SUNRISE partnership includes activity on gasification of farming/crop wastes (a major cause of the incredible pollution in Delhi in November 2016) and the SPECIFIC IKC will support the practical on site demonstration of photocatalytic water purification using a linked programme with the Gates' Foundation. A key driver for this project is not only demonstration of technology in real demonstration sites but the creation of a legacy of better Indian Industry/Institution collaboration through the creation of an Industrial Doctorate programme modelled on the success of the UK EngD programme started by EPSRC in 1992 and pioneered at Swansea.

Our research aims to develop plastic films or coatings that change the colour and other characteristics of the light that passes through them, not by absorbing certain wavelengths of light, as a simple colour filter would, but by converting light of one wavelength to another without losing any energy. Solar cells offer an example of why this would be useful: conventional silicon solar cells are more efficient at collecting the energy of red light than they are of blue light. So if we coated the solar cell with a film that would convert every blue photon into two red photons, without losing any energy in the process, in principle we could make the silicon solar cells 30% more efficient. Our previous research at Cambridge has shown in principle how this could be done. Certain organic semiconductors will absorb a blue photon to produce an electron-hole pair, which then splits into two. Normally these two electron-hole pairs would annihilate and the energy would be lost, but if we can arrange for the organic semiconductor to be in molecular contact with an inorganic semiconductor quantum dot, then the electron-hole pairs can migrate to the quantum dot, where they will recombine and emit two red photons. The problem we now want to solve is to work out how to turn this idea into a practical product that we can manufacture on a large scale. We need to be able to make semiconductor nanocrystals that won't clump together, and to coat them with a very thin layer of the organic semiconductor so the two materials are in molecular contact. Then we have to disperse these tiny particles in a clear plastic film, which we can use to coat a solar cell - and the whole process has to be designed so that it doesn't increase the cost or complexity of making the solar cell too much. This coating for solar cells is just one example of the potential there now is for taking the latest materials from the laboratory with novel and interesting optical properties and turning them into useful products. Another example is provided by thin sheets of semiconductors only a few atoms thick. These can be very efficient at absorbing light (for example from a light emitting diode) and reemitting it as a single, purer, colour. This will help us make better optical communication devices and display devices. But once again, we need to learn how to encapsulate and embed these tiny, ultrathin sheets into a plastic film without them sticking together in stacks. The key to solving these manufacturing problems is understanding the factors that make these tiny particles and sheets stick together and what treatments could keep them apart - often this will involve sticking special molecules to their surfaces. In the final products, these particles and sheets will be dispersed in a plastic sheet, and we need to understand how, as the plastic film dries or sets hard, the drying process affects the particles, and whether the processes that take place in the drying film makes the optical effects we're looking for less effective. We will be studying the films we make with techniques that allow us to see the individual molecular layers around the particles, as well as how well the particles are dispersed. In this way we'll understand the rules for manufacturing these sorts of films. By the end of the project, we aim to be able to work with solar cell manufacturers to test our idea in the real world and get to the point where a product can be commercialised. If we are successful, we'll have demonstrated that we can go from understanding the fundamental science of these optical and electronic effects in these new kinds of materials to make useful products that will benefit UK industry and help solve problems of climate change.