Roll-to-roll Vacuum Deposition of Small Molecules The Right Choice. Thibaud Le Séguillon, CEO Heliatek

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1 Roll-to-roll Vacuum Deposition of mall Molecules The Right Choice Thibaud Le éguillon, CEO Heliatek

2 Agenda 1. About Us 2. Oligomers vs. Polymers 3. Heliatek Oligomers 4. Manufacturing 5. Markets & Applications PE 2012 Conference - Plenary Opening 2

3 About Us Technology leader in Organic PV PE 2012 Conference - Plenary Opening 3

4 Heliatek at a Glance Development of organic materials and manufacture of solar films Background Achievements (04/2012) Objectives pecialized in the production of organic solar films based on proprietary IP Founded in 2006 out of two leading universities HQ in Dresden (Germany), the leading organic electronic cluster in Europe - Development Centers in Dresden (Physics) and Ulm (Chemistry) World leading OPV efficiency of 10.7 % uccessful proof of concept with its first R2R production tool in Dresden Backed by leading industry (Bosch, BAF, RWE) and venture capital (Wellington Partners) - Raised 28 M to date, plus > 10 M in public funding Commercial ramp-up by Q Raise 60 M in round C by Q to expand capacity Invest in R2R line with 1 m width and 75 MW p capacity - Fab-2 invest starting in Jan 2013 PE 2012 Conference - Plenary Opening 4

available for expansion Heliatek is an impressive example for the large development

5 Heliatek at a Glance Development of organic materials and manufacture of solar films First-revenue startup company Roll-2-roll manufacturing of solar films 81 employees, including16 Ph.D. s and 25 engineers 20 patent families Manufacturing: 1,200 m² Labs: 800 m² 3,000 m² available for expansion Heliatek is an impressive example for the large development potential that the photovoltaic technology still has to offer. Peter Altmaier, Federal Environment Minister PE 2012 Conference - Plenary Opening 5

Our 4 Core Competencies Unique in-house feedback loop for continuous improvement Materials development Chemistry lab in Ulm with 11 chemists specialized in organic materials tack architecture Physics

6 Our 4 Core Competencies Unique in-house feedback loop for continuous improvement Materials development Chemistry lab in Ulm with 11 chemists specialized in organic materials tack architecture Physics lab in Dresden with 14 physicists specialized in organic electronics OPV business development Experienced management and solar specialists for market entry I IV II III R2R production First production site in Dresden with 23 engineers and operators PE 2012 Conference - Plenary Opening 6

7 Oligomers vs. Polymers Making the right choice PE 2012 Conference - Plenary Opening 7

N N N N OLED mall molecules completely dominating the market due to: Higher

8 Two Approaches to Organic olar Cells (OPV) mall molecules: The right choice Polymers (plastics): Printing Process mall molecules: Vacuum Deposition N N N N Zn N N N N OLED mall molecules completely dominating the market due to: Higher efficiencies Better lifetime More reliable production process PE 2012 Conference - Plenary Opening 8

9 Oligomers mall molecules with a big impact hort synthesis: below five-steps starting from commercially available materials Defined molecular weight: scalable; simple purification by recrystallization and/or sublimation N N Typical oligomer for OPV (P. Bäuerle et al.) N N No need of extended solubilizing side-groups closely packed layers Note: extended side-groups reduce morphological stability of layers F O O O O F O O O O F O O O O Z. He et al., Adv. Mat PE 2012 Conference - Plenary Opening 9

10 Why vacuum deposition of small molecules? Oligomers vs. Polymers: The right choice We do not need solvents (potentially toxic, e.g. chlorinated) It enables the preparation of optimized multilayer devices - Ideally suited for preparing tandem cells - Avoid interface degradation by adding dedicated (doped) interlayers It is an established, reliable method for large scale manufacturing - Linear sources with up to 2,2m width (Gen 8) for fast homogeneous in-line or R2R-deposition are available - Production speed > 1 m/min PE 2012 Conference - Plenary Opening 10

11 Heliatek Oligomers molecules with a big impact PE 2012 Conference - Plenary Opening 11

Organic absorber Versatile molecular construction set Extremely strong absorption

12 Heliatek s Materials Development Powerful absobers with superior properties Heliatek develops and synthesizes molecules at its own chemistry lab: Oligomers Fullerene C60 Organic absorber Versatile molecular construction set Extremely strong absorption Good hole transport High photovoltages up to 1.04 V PE 2012 Conference - Plenary Opening 12

Heliatek s p-i-n Tandem Devices Patented, highly efficient tandem cells Heliatek designs and optically engineers tandem cells: Plastic substrate TCO front electrode + + + + + + + + p + + + + + + +

13 Heliatek s p-i-n Tandem Devices Patented, highly efficient tandem cells Heliatek designs and optically engineers tandem cells: Plastic substrate TCO front electrode p Organic vacuum deposited layers: Total thickness 250 nm Only 1 gram organic material per m² Organic absorber 1 n p d + Organic absorber Optical Engineering: Absorber layers are placed in the respective interference maxima n Metal back electrode PE 2012 Conference - Plenary Opening 13

14 Efficiency [%] Efficiency Development Continuous progress meeting business plan milestones W.R. 10.7% W.R. 6.1% W.R. 8.3% W.R. 9.8% W.R. World Record Business Plan Roadmap Actual PE 2012 Conference - Plenary Opening 14

15 hift Bottom Cell (close to Al) / nm Driving Efficiency towards 13% Tandem cells for broader absorption Absorber used in 10,7%-cell: 200 Efficiency / % ,940 4,020 5,100 6,180 7,260 8,340 9,420 9,960 10,50 10,77 11,31 11,40 11, hift Top-Cell (close to ITO) / nm tatus 2009: We needed to assume both shifted spectra and further progress in carrier mobility to achieve 10 % Today: Only moderate shifts in spectra ( nm) are required for >13 % (i.e. carrier mobility, absorption strength, and energy level alignment are already sufficiently good) PE 2012 Conference - Plenary Opening 15

16 hift Bottom Cell (close to Al) / nm Driving Efficiency towards 13% Tandem cells for broader absorption Two absorbers needed for >13 %: Two modified versions of currently best absorber 200 Efficiency / % ,940 4,020 5,100 6,180 7,260 8,340 9,420 9,960 10,50 10,77 11,31 11,40 11, hift Top-Cell (close to ITO) / nm tatus 2009: We needed to assume both shifted spectra and further progress in carrier mobility to achieve 10 % Today: Only moderate shifts in spectra ( nm) are required for >13 % (i.e. carrier mobility, absorption strength, and energy level alignment are already sufficiently good) PE 2012 Conference - Plenary Opening 16

Efficiency [%] Transparent olar Cells A key differentiator of Heliatek s solar films 14 12 10 target 2012 target 2015 certified 05/2012 8 6

17 Efficiency [%] Transparent olar Cells A key differentiator of Heliatek s solar films target 2012 target 2015 certified 05/ Heliatek aims at 50% light transmission by Light Transmission [%] PE 2012 Conference - Plenary Opening 17

for 2012 7% Efficiency at 30% light transmission Bluish color of transmitted light

18 Transparent olar Cells Update August 2012 Latest results: 6.5 % Efficiency with 32 % average light transmission approaches Heliatek s target for % Efficiency at 30% light transmission Bluish color of transmitted light Attractive for automotive and modern office building architecture PE 2012 Conference - Plenary Opening 18

19 Normalized efficiency [%] Lifetime: table Oligomer Cells Glass-glass encapsulation 1,000 h required for IEC Aging tests performed on 8.3% record cell till > 95 % efficiency after 1,800 hrs both in light soaking test and at 85 C Extrapolated light soaking lifetime T80: 13,600 h (equals approx. 24 yrs.) Extrapolated heat lifetime T80: 12,200 h Even the 9.8 %-cell can stand 1,000 h at 85 C with less than 5 % degradation Time [hrs] PE 2012 Conference - Plenary Opening 19

20 Durability of Foil-Encapsulated olar Film Lifetime test according to IEC standard for PV industry Heliatek s foil-encapsulated solar films withstand lifetime tests well above industry standard PV limits Graph shows degradation of power generation after dampheat stress (85 C, 85% RH) below 3% uccess is based on commercially available barrier foils and junction boxes with a Heliatek propriety encapsulation and sealing process Heliatek reliability lab measurement of BDR-based stack, 80 cm² active area PE 2012 Conference - Plenary Opening 20

21 Manufacturing Unique R2R production PE 2012 Conference - Plenary Opening 21

scribing of P1, P2 and P3 structuring tart of production trials Jul-12 One vacuum rollcoater integrates

22 Towards Large cale Roll-to-Roll Production Low temperature deposition in vacuum on film Proof-of-concept production line: 30 cm wide PET-substrate Linear sources with low temperature vacuum deposition Laser scribing of P1, P2 and P3 structuring tart of production trials Jul-12 One vacuum rollcoater integrates organic multilayer deposition, metal deposition, P2, P3 and first encapsulation PE 2012 Conference - Plenary Opening 22

Unique R2R vapor production Precise and homogenous production

deposition Multi-layer stack Low temperature (120 C) Laser

23 Unique R2R vapor production Precise and homogenous production process for little upscaling losses Roll-to-roll process Continuous process 500 m long rolls 0.30 m wide web Vapor deposition Linear sources Homogenous deposition Multi-layer stack Low temperature (120 C) Laser structuring Precise process Ultra narrow scribes Minimum area losses PE 2012 Conference - Plenary Opening 23

30 m Our Factory: Line 1 calable and modular manufacturing 40 m Only 1,200 m² foot print Only 6 operators/shift Only 1 g/m² organic material Only grey room Only

24 30 m Our Factory: Line 1 calable and modular manufacturing 40 m Only 1,200 m² foot print Only 6 operators/shift Only 1 g/m² organic material Only grey room Only 120 C process temperature No indirect material No gas, no solvent, no acid No obsolesence of capex with efficiency improvement PE 2012 Conference - Plenary Opening 24

25 Markets and Applications Integrating functionality into your products PE 2012 Conference - Plenary Opening 25

Key Benefits at a Glance Unique technology features for limitless application possibilities Key benefit # 1: Ease of integration Robust, ultra-thin and ultra-light solar films allow for easy

26 Key Benefits at a Glance Unique technology features for limitless application possibilities Key benefit # 1: Ease of integration Robust, ultra-thin and ultra-light solar films allow for easy integration Key Benefit #2: New olar Aesthetics Our solar films can be tailored to multiple design requirements Key Benefit #3: uperior Harvesting Factor Up to 25 % higher energy yield compared to traditional PV Key Benefit #4: The TRULY green solar technology Consistently green solar energy PE 2012 Conference - Plenary Opening 26

27 olar Film: Energy Harvesting Component olar films can be integrated in a variety of materials Concrete Foils Polycarbonate Text. membrane Metal PVC membrane Glass Electronics. PE 2012 Conference - Plenary Opening 27

28 Volume Development cenario On our way to ay hello to solar. Wherever you are hort Term Medium Term Long Term ff Energy-2-go, small off-grid systems BIVP, Larger off-grid, automotive & transport On-roof standard PV, large PV power plants Efficiency: % Lifetime: 20 yrs Capacity: 2 to 3 MW p Costs > industry average Efficiency: % Lifetime: yrs Capacity: 50 to 300 MW p Costs = industry average Efficiency > 12 % Lifetime > 25 yrs Capacity: > 500 MW p Costs < industry average Time PE 2012 Conference - Plenary Opening 28

Acknowledgement Employees and people involved in Heliatek s network Heliatek GmbH: C. Uhrich, R. Meerheim,. Grundmann,. onntag, J. Levichkov, M. Levichkova, T. Müller, K. Walzer, B. Männig, D.

29 Acknowledgement Employees and people involved in Heliatek s network Heliatek GmbH: C. Uhrich, R. Meerheim,. Grundmann,. onntag, J. Levichkov, M. Levichkova, T. Müller, K. Walzer, B. Männig, D. Hildebrandt, O. Tsaryova,. Vetter, G. Mattersteig, A. Weiss, M. Pfeiffer Universität Ulm, Abteilung organische Chemie II: P. Bäuerle, E. Reinold, A. Mishra et al. Institut für Angewandte Photophysik (TU Dresden): M. Riede, L. Müller-Messkamp, J. Meiss, D. Wynands, K. Leo et al. BAF E: P. Erk et al. Bosch GmbH: W. Volz et al. Novaled AG, Dresden: A. Werner, M. Hofmann, J. Blochwitz-Niemoth et al. Fraunhofer IPM, Dresden: O. Hild, M. Törker, C. May et al. Creaphys GmbH: J. Drechsel, H+C Fröb, M. Koch et al. PE 2012 Conference - Plenary Opening 29

30 Acknowledgement Funding and subsidies Research and development work, as well as the installation of production technology, has been funded by: The ächsische Aufbaubank (AB) The BMBF (German ecretary for Education and cience) The BMWi (Federal Ministry of Economics and Technology) The European Fund for Regional Development (EFRE) BMBF: Contract Nr. 13N9716, 13N9869; AB: Contract Nr (UFO)/Bewilligung Nr (GA) PE 2012 Conference - Plenary Opening 30

31 Thank you for your attention. PE 2012 Conference - Plenary Opening 31

Solar Film Introduction. Company Presentation 1

Solar Film Introduction. Company Presentation 1 olar Film Introduction Company Presentation 1 Executive ummary Background pecialized in the production of organic solar films based on proprietary IP Founded in 2006 out of two leading universities HQ