Perovskites | Organics | CIGS | Tandem | R2R | Inkjet | Printed | Thin Film Deposition | Scale-Up | Stability | Thin Film Barriers | Material Innovations | Substrates
Product Development Specialist
Ultra Barrier Films for Protecting Electronics and Fexible Photovoltaics
3M Barrier Films are designed to provide a barrier to water and oxygen transmission while maintaining the optical transmittance characteristics of the base films. These films are used in both display and flexible electronic applications where water and oxygen sensitivities are present. In the area of flexible photovoltaics most of the emerging technologies like CIGS, OPV and perovskites require ultra barrier films to protect them from degradation in the field.
3M has the unique capability to make roll to roll barrier films in wide format allowing for large scale barrier film volume. We will provide an introduction to ultra moisture barrier film construction and performance as well as highlight the features and characteristics of the barrier film products that are currently commercialized.
Research, Development & Innovation Manager
ASCA Activate your Design
Unlike conventional crystalline solar cells, the organic solar films are not only flexible and transparent, but can also be bent and shaped as desired. The ASCA® solar film can be produced in blue, green, grey and red. There are also no limits in terms of length, size and design. We can produce any kind of solar cell, which thus becomes part of the architecture, thanks to our unique industrial free-form, integration and project approach.
With its customer orientation, ASCA offers solutions for all market segments with ASCA® Mobility, ASCA® Sensor and ASCA® Structures.
Our projects are oriented through three main types of integration:
1. media facades
2. glass facades
3. building envelope elements like guardrails
The solar power is produced by carbon-based organic solar cells, which ASCA applies in very thin layers to thin films using an internally designed printing process.
These unicities will be illustrated through project realized by the ASCA team.
Piezoelectric drop-on-demand inkjet-printing as a high-throughput technique for the fabrication of large-sized perovskite solar modules.
The interest in perovskite photovoltaics (PVs) has drastically increased in the last few years, both in the scientific community and solar industry, since these devices can offer a high light-to-electricity conversion efficiency at a low manufacturing cost, providing also many unique characteristics. According to the latest research reports, the market of perovskite solar cells (PSCs) is estimated to grow at a 34% compound annual growth rate (CARG) for 2020-2027. Although, to ensure the economic feasibility and competitive levelized cost of electricity (LCOE), critical challenges regarding their long-term stability, scaling up and manufacturing costs should be further considered and overcome.
For enabling the successful fabrication of very low-cost, stable and scalable PSCs, ambient air processed carbon-based hole transport material-free (C-based HTM-free) PV devices employing perovskites as light absorbers are considered the front runner to the market. This type of solar cell seems to be the most promising for achieving very low manufacturing costs due to the inexpensive carbon materials, very simple structure and full compatibility with printing fabrication techniques. Simultaneously, under this architecture, many instability issues that characterize the conventional noble metal-based PSCs are addressed. When the fabrication of these devices is combined with fully ambient air-processing, where sophisticated air/humidity-controlling systems are avoided, their mass production and commercialization are considered one significant step closer.
Up until now, the vast majority of PSCs have relied on the spin-coating of solar cell materials under inert fully controlled conditions, with the performance of devices that are developed by alternative techniques and under ambient atmosphere to lag far behind. This impedes the technology transfer from the laboratory to industrial large-scale production. Thus, the investigation of new scalable techniques should be thoroughly considered. Some of the alternatives that have been already applied are blade-coating, slot-die coating, spray-coating and inkjet-printing. Amongst them, inkjet-printing stands out as a digital deposition approach for solution-based materials that is characterized for its scalability, fast material deposition with high accuracy and low waste, which also allows for the formation of fine patterns of printed inks at a high resolution. To date, even though the studies on inkjet-printed PSCs are only few, substantial achievements have been made, with the record efficiencies for small-sized C-based PV devices to be on the order of 12%.
One of the aims of Brite Solar is to increase the technology readiness level (TRL) of PSCs for many pioneer and niche applications. More specifically, the company aims to deliver fully printed large-sized (>400 cm2) perovskite solar modules (PSMs) (Fig.1) utilizing drop-on-demand inkjet-printing, as well as novel nanostructures and perovskite materials, that will increase the competitiveness of this technology for its entering the PV market, all developed by Brite Solar Engineers and Scientists. Very recently, a breakthrough in the upscaling of fully-printed ambient air processed C-based HTM-free PSMs has been achieved: efficiencies on the order of 10% (in the active area of PV) under 1 sun illumination on an unprecedented 200 cm2 active area, is the main topic of our presentation, also demonstrating noteworthy stability under different accelerated ageing conditions (according to the ISOS protocols).
COATEMA Coating Machinery GmbH
Improvement of yield and performance of OPV by using inline quality control systems and process monitoring
Coatema delivered a pilot line in 2012 to the University of Thessaloniki in Greece. (Auth). Since then, there has been a continuous scale up of the system with the integration of different quality control systems like inline spectroscopy and others. In a new European project called Real Nano additional quality control systems are being installed.
The talk describes the used systems, the influence of the different parameters like coating, drying, tension control and others.
CTO & Co-Founder
Towards a Perovskite Tandem Future
Our latest approach to 4T perovskite/Direct Wafer silicon tandem PV modules will be presented. As energy demand continues to increase globally, solar photovoltaic (PV) technology needs to respond with ever-increasing module efficiency – and better energy yield. Archetypical single-junction silicon technology has an upper module efficiency limit of ~24%, though by applying a metal halide perovskite top cell and a bifacial module design, module efficiency can increase to over 30% and leverage up to 30% albedo light (i.e., reflected light available to the backside of the module). Concurrently, as noted by Swanson’s Law, this increase in PV deployment is expected to also come at an ever declining price, typically registered in $/W(name plate). As such, CubicPV looks to pair its very low-cost printed perovskite technology as our top cells with our kerfless silicon Direct Wafer technology as the basis for our bottom cells. Most importantly, by combining printed perovskite materials with kerfless silicon, CubicPV aims to produce an area-efficient PV module with very low embedded energy and carbon, as compared to standard silicon PV derived from the Czochralski single crystal process.
Sadok Ben Dkhil
Inkjet printed Flexible and Free Design OPV Modules for Indoor Application
Over the last decade, organic solar cells (OSCs) have become a promising technology for next generation solar cells combining novel properties such as light weight, flexibility, or color design with large-scale manufacturing with low environmental impact. However, the main challenge for OSC will be the transfer from lab-scale processes to large-area industrial solar cell fabrication. High efficiencies in the field of OSCs are mainly achieved for devices fabricated under inert atmosphere using small active areas, typically below 0.2 cm2. So far, a small lab scale devices have now reached performances above 18%.
Apart from traditional large scale outdoor application, organic photovoltaic cells and modules are also of interest for powering small, off-grid electronic devices indoors. In this context, the main challenge for organic photovoltaic technology will be the transfer from lab-scale processes to large-area industrial modules fabrication under inert atmosphere using green solvent. In this light, inkjet printed highly efficient organic photovoltaic modules under indoor illumination were demonstrated by Dracula Technologies even for low lighting condition (<50 lux) by using new specific indoor materials and device structure. To prove the great advantage of inkjet printing as a digital technology allowing freedom of forms and designs, particular organic modules with different artistic shapes were demonstrated keeping high performance under indoor conditions. Reported results confirm that inkjet printing has high potential for the processing of OPV, allowing quick changes in design as well as the materials.
Reported results confirm that inkjet printing has high potential for the processing of OPV, allowing quick changes in design as well as the materials.
DuPont Teijin Films
PV Marketing Manager
Sustainability without compromise - Advances in Polyester Film Substrates for Photovoltaics
In this talk, Steven Davies from DuPont Teijin Films will provide an overview of their Mylar® UVHPET™ product range and how these products are being used in thin film solar applications. Applications for DuPont Teijin Films’ polyester films include front sheet, backsheet and electrode layers, and the talk will specifically focus on the impact of these products from a sustainability perspective. Covering topics such as the use of recycled content, feasibility studies into future closed loop recycling processes and the durability and reliability of the products, the key theme will be that halogen free films can be used in these emerging technologies without a negative impact on product performance – Sustainability without compromise.
Founder & MD
OPV for IOT applications – Smart Power to Data
Powering a large number of IoT devices from primary batteries is often a showstopper for many use cases. OPV with its excellent performance under challenging illumination conditions can be
a significant part of the solution. Since there is no standard IoT specification, the integration of the power source is mostly highly customized. By combining inhouse OPV production, systems development and cloud based data collection and power management, we develop optimized IoT solutions for Industry and smart buildings.
Printed Organic PV For Low Light Applications
Organic photovoltaics (OPV) is a technology that can benefit from both Roll-to-roll and a fully wet-processed production; using liquid inks to create a photovoltaic device. While OPV is not quite ready for solar applications yet, there is another market where this technology can already be utilized, namely the indoor PV market (IPV). A key driver for this market is the ongoing sensor boom, an ever-increasing demand for more data and hence devices that collect this data. A major limiting factor in deploying an abundance of these sensor devices is the cost for keeping track of and replacing batteries; the “battery hell”.
A credit card sized organic IPV module can completely replace batteries or extend the battery lifetime. This concept is called “Light energy Harvesting” abbreviated LEH, a tool that will become key in circumventing the “battery hell”.
In this talk co-founder and RnD director Thomas Österberg will explain the key concepts in realizing a printed technology fit for the IPV market and give an update of the present status of Epishine, a manufacturer of organic IPV modules.
CTO & Co Founder
Evolar’s PV Power Booster line – a turnkey fab solution based on perovskite technology
Evolar is offering turnkey fab solutions based on a perovskite technology, PV Power Booster, to be used for tandem solar cell applications. Evolar was founded in 2019, but the team has a long history in the thin film solar cell business. Some of the team members founded also Solibro, previously the leading company in Cu(In,Ga)Se2 thin film solar cell technology and a provider of panels and turn-key fabs. The long experience of development, production, and equipment design provides conditions for a fast commercialization of Evolar’s solution.
The deposition of the perovskite layer is made in an evaporation process, a well-established method for large area and high-volume production of high-quality thin films. Evolar has achieved uniform high quality perovskite films on m2 substrate sizes, using in-house designed equipment. Evolar’s main concept is based on a so called four terminal tandem technology, where we deposit the semi-transparent perovskite module directly on the inside of the cover glass on a conventionally Si-module.
By offering high up-time and high throughput equipment in combination with a significant improvement in module efficiency and low operating costs, the pay-back time for an investment in Evolar’s technology is short.
Organic Photovoltaics & Beyond - from single solar cells to integrated systems - ways for additional energy harvesting
Green & Clean Electricity from Organic Solar Films
Heliatek is technology leader in organic photovoltaics. In his presentation, Heliatek’s CTO Jan Birnstock
will give insights in the innovative technology, the proprietary roll-to-roll evaporation production
process, the product advantages and will draw the future technology and market potential.
Heliatek’s organic solar film HeliaSol® is an innovative solar film, that is ultra-light, flexible and ultra-thin.
With a carbon footprint of less than 10 g CO 2 e/kWh it is the greenest of all solar technology. Thanks to
the integrated backside adhesive, the solar films can be easily glued to a variety of building surfaces and
transforms them into clean energy generators.
Solution Coated Gas Barrier for Environmental Sensitive Device
Solution coated gas barrier (SGB) for flexible device was developed to cover defects of substrate and to lower the cost of gas barrier by PECVD. With suitable plasma treatment of SGB, the WVTR of gas barrier substrate can achieve 4.72x10-6 g/m2day after rolling at 15mm radius for 10,000 times. this technology is suitable of flexible device, such as flexible OLED, organic photovoltaic, and quantum dot material.