Product Development for Organic Photovoltaics

Transcription

1 Product Development for Organic Photovoltaics Jens Hauch

2 Who is Konarka? Renewable Energy Printable low-cost Solar Cell Organic Chemistry Printed Electronics Innovators at the Intersections 2

3 Renewable Energy Supply Wind 14 TW Tide/Ocean Currents 0.7 TW Geothermal 1.9 TW Solar 1 x 10 5 TW at Earth surface 10,000 TW (technical value) Biomass 5-7 TW It s about TWs Hydroelectric 1.2 TW technically feasible 0.6 TW installed capacity Energy gap ~ 14 TW by 2050 ~ 33 TW by 2100 Source: Arthur Nozik 3

4 Manufacturing Paradigm Developing Low Cost, Scalable PV Manufacturing Process Low Cost: low temperature, ambient conditions, no clean room, no silicon, lower energy footprint Scalable: coating or printing technology, utilization of existing capacity Continuous: roll-to-roll high-volume production Consequence: Thin, lightweight, flexible PV Product. 4

5 Company Overview Founded in 2001 as spin-out of UMass and University of CA Leading IP position with nearly 350 patents and global filings Strong 100+ person team with technical and industrial expertise $150+ private funding raised to-date, $20M government grants Global presence with staff in US, Germany, Austria, & China Headquarters: Lowell, MA Production New Bedford, MA Nurnberg, Germany Linz, Austria 5

6 Lab Capacity Upscaling Pilot Production cm 1kWatt cm 1MWatt cm 1GWatt 6

7 Production Plant 250 to 1500 mm width No facing roll 100 feet / minute: 1GW per year potential 7

8 Bulk Heterojunction (OPV) ~ nm Active layer Main components of the active layer: Semiconducting polymer and Fullerene 8

9 OPV Cell Schematic Bulk Heterojunction Polymer/Fullerene 3 Key Functions 1 2 Light Absorber Hole Carrier 3 Electron Carrier 9

10 Shifting Solar: Rooftop to Anywhere 10

11 Minimum requirements for any PV technology Technical Requirements Lifetime (3-5 years) Key Parameters are efficiency, lifetime and cost The application decides which is the most important parameter. Efficiency (>3%) Costs (<1 /Wp) A successful product must fulfill all 3 requirements: Efficiency, Lifetime and Cost

12 Efficiency State of the Art Device performance Certified by NREL requirements for new materials ~0.8cm 2 LUMO Level Donor [ ev ] HOMO -5.8 ev HOMO -4.8 ev Band Gap [ ev ] Max. device efficiency 6.39% New materials drive efficiency 12

13 State of the art ALT Production Modules Norm. Eff. [a.u.] C/85%rh Packaging Film WVTR ~ g/m 2 /day Time Hours Extrapolated LT > 8000hrs 13

14 1.2 State of the art ALT Production Modules 1.0 Norm. Eff. [a.u.] C/1sun Packaging Film OTR < 0.01 cc/m 2 /day Time [hours] Expected Lifetime > 3yrs Oxygen permeation does not appear to be limiting packaged device lifetime 14

15 Rooftop Testing Location Lowell, MA. Facing solar south at kwh / m2 Two measurement modes a) Outdoor jv in 4th quadrant with modulated load and wireless data read out b) Periodic characterization under standard solar simulator 15

16 110% Outdoor Testing 100% 90% Normalized 1 Sun 80% 70% 60% 50% 40% 30% Not temperature corrected! 200 Days 20% 10% 0% Sep-08 Oct-08 Nov-08 Dec-08 Jan-09 Feb-09 Mar-09 Apr-09 Outdoor Degradation of Production Modules WVTR=.07g/m2/day - Estimated Lifetime > 3yrs 16

17 Outdoor Testing Still measuring device intalled two years ago with poor components 17

18 Power Plastic Standard Products 18

19 Power Plastic Standard Products Standard Product Technical Spec. Sheets Available ¼ watt ½ watt 1 watt 2 watt 5 watt 8 watt 12 watt 26 watt 19

20 End User Products Rollable power supply Shading elements Solar Bags: Standard 2W KT-3000 : 30 Watts Semi-Transparent Module 20

21 Acknowledgments A J Heeger and the Center for Polymers and Organic Solids, UCSB The Konarka Technologies R&D team 21

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