towards mass production - tgz bitterfeld-wolfen gmbh · 2018. 3. 7. · towards mass production:...
TRANSCRIPT
Towards Mass Production:
Flexible Organic Photovoltaics
Based on Vacuum-Deposited
Small Molecules
Benedikt Gburek, 7th November 2013
7th November 2013 © Heliatek GmbH www.heliatek.com
Overview
Towards Mass Production of Organic Solar Films 2
1. About Us
2. Technology
3. Efficiency and Lifetime
4. Manufacturing
5. Key Benefits
6. Markets and Applications
Towards Mass Production of Organic Solar Films 3
About Us
Technology leader in Organic PV
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 4
About Heliatek
Started in 2006 as joint spin-off from TU Dresden and University Ulm with seed funding by HTGF
Investors: BASF, Bosch, Wellington, RWE, e-Capital, TGFS, HTGF (S 28M€)
Focus 2006-2009: Technology Platform (Efficiency, Lifetime, Modules on Glass)
Focus since 2010: Transfer to PET, vacuum R2R deposition
Current headcount: 75
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 5
Our 4 Core Competencies Unique in-house feedback loop for continuous improvement
II
III IV
I
Stack architecture
Physics lab in Dresden with 14 physicists specialized in organic electronics
R2R production
First production site in Dresden with 23 engineers and operators
Materials development
Chemistry lab in Ulm with 11 chemists specialized in
organic materials
OPV business development
Experienced management and solar specialists for
market entry
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 6
Awards
Dr. Pfeiffer (CTO), together with Prof. Leo and Dr. Blochwitz-Nimoth, won the 2011 Deutscher Zukunftspreis, the German President's Award for Technology and Innovation, for their achievements in organic electronics.
Heliatek wins 2012 Materials Award for its breakthrough solar cell technology at IDTechEx Printed Electronics.
Heliatek takes Silver at Ecosummit Award 2012 for being one of the most promising startups in the cleantech sector.
Heliatek is for the third time in a row Global Cleantech 100 company selected by Cleantech Group in collaboration with the UK’s Guardian News and Media
Excerpt of 2011 and 2012 Awards
Technology
Towards Mass Production of Organic Solar Films 7
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 8
Vacuum deposition of small molecules
Oligomers enable the use of well defined, high purity materials
- They have defined lengths
- No need of extended solvating side-groups
- Purification by gradient sublimation
No need for solvents (chlorinated, potentially toxic)
Oligomers enable the preparation of optimized multilayer devices
- Ideally suited for preparing tandem cells
- Avoid interface degradation by adding dedicated (doped) interlayers
Established, reliable method for large scale manufacturing (e.g. OLED)
Linear sources up to 2 m wide are available for homogeneous deposition
Oligomers vs. Polymers: The right choice
S
S
S
S
O
O
F
O O
S
S
S
S
O
O
F
O O
S
S
S
S
O
O
F
O O
S
S
S
S
S
N
N N
N
Oligomers Polymers
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 9
TCO front electrode
-
+
p
n
p
n
Organic vacuum deposited layers:
Total thickness 250 nm
Only 1 gram organic material
per m²
Plastic substrate
+ + + + + + + + + + + + + + +
Organic absorber 1
- - - - - - - - - - - - - - -
+ + + + + + + + + + + + + + +
Organic absorber 2
- - - - - - - - - - - - - - -
Metal back electrode
Physics: Tandem Devices Patented, highly efficient tandem cells
d
Optical
Engineering:
Absorber layers
are placed in
the respective
interference
maxima.
Heliatek designs and optically engineers tandem cells:
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 10
TCO front electrode
-
+
p
n
p
n
Organic vacuum deposited layers:
Total thickness 250 nm
Only 1 gram organic material
per m²
Plastic substrate
+ + + + + + + + + + + + + + +
Organic absorber 1
- - - - - - - - - - - - - - -
+ + + + + + + + + + + + + + +
Organic absorber 2
- - - - - - - - - - - - - - -
Metal back electrode
Physics: Tandem Devices Patented, highly efficient tandem cells
d Tandem Cell Technology:
• Optimum harvesting of
complete sun spectrum
• Doubled photovoltage
Heliatek designs and optically engineers tandem cells:
Towards Mass Production of Organic Solar Films 11
Efficiency and Lifetime
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 12
12 % Efficiency – new world Record for OPV
12% PCE December 2012
Measured by SGS at standard test conditions (December 2012)
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 13
12 % Efficiency – new world Record for OPV Measured by SGS at standard test conditions (December 2012)
Heliatek’s patented p-i-n tandem cell
• Proprietary absorbers developed and synthesized by Heliatek and
University Ulm
• 5th OPV record efficiency in sequence
Po
we
r c
on
ve
rsio
n e
ffic
ien
cy
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 14
142 cm²-Module on Glass
Efficiency on active area: 9,8 %
Record efficiencies thanks to minimum upscaling losses
7 Cells in Series Active Area
122 cm² Total Area 142 cm²
VOC 18.7 V 18.7 V
VOC per cell 2.67 V 2.67 V
JSC mA/cm² 0.77 0.66
FF 68 % 68 %
Efficiency 9.8 % 8.4 %
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 15
Efficiency Development for Cells >1 cm² on PET Closing the gap between cells on glass and PET substrate
Rapid progress in transferring our technology from glass to PET film
FF for samples on glass has been reproduced
Mainly optical losses due to increased surface reflection and lower optical quality of ITO
Eff
icie
nc
y [
%]
7th November 2013 © Heliatek GmbH www.heliatek.com
Lifetime: Stable Oligomer Cells
Towards Mass Production of Organic Solar Films 16
Still > 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
Glass-glass encapsulation
No
rma
lize
d e
ffic
ien
cy [
%]
Time [hrs]
Aging tests performed on 8.3% record cell
1,000 h required for IEC
Towards Mass Production of Organic Solar Films 17
Manufacturing
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 18
Unique R2R vacuum production Precise and homogeneous production process for little upscaling losses
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 19
Unique R2R vacuum production Precise and homogeneous 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
• Homogeneous deposition
• Multi-layer stack
• Low temperature (120 °C)
Laser structuring
• Precise process
• Ultra narrow scribes
• Minimum area losses
Towards Mass Production of Organic Solar Films 20
Key Benefits
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 21
Key Benefit #1: Ease of integration
Robust, ultra-thin and ultra-light solar films allow for easy integration
The future is light
500 g/m²
12 kg/m²
17 kg/m²
Crystalline modules Thin film modules Heliatek modules
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 22
Our solar films can be tailored to your design requirements:
Key Benefit #2: New Solar Aesthetics The freedom of possibilities
Custom-designed dimensions
Homogeneous surface
Numerous colors
Flexible
Less than 1 mm thick solar films
Adjustable transparency levels
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 23
Key Benefit #3: Superior Harvesting Factor SmoleculesTM with a big impact
Superior low light characteristics
put others in the shade:
Perfect for less sunny, northern regions or
façades/applications with poor orientation.
Perfect for hot, southern regions or
applications with little ventilation.
High temperature resistance
to stay cool under pressure:
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 24
Key Benefit #4: The TRULY green solar technology
Extremely short energy payback time (< 6 months)
Only 1 gram organic material per m²
Low energy used in production thanks to low process temperatures
Toxic-free manufacturing process
Only organic materials, no heavy metals in cells
Produced with abundant materials, without risk of shortages
Easy disposal at end of life cycle
Consistently green solar energy
Towards Mass Production of Organic Solar Films 25
Market & Applications
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 26
B2B Business Model Adding functionality to traditional applications
i-DIS
TRIB
UTO
R
Solar film
Consumer
Application
=
• Electronics
• Marine
• Camping
• Energy-2-Go
• Home Interior
+
i-Distributor
B2
B•
2C
Mo
de
l
Irobot from Leonard
OPV
Application
PA
RTN
ER
Solar film
Manufacturer =
• Glass
• Concrete
• Metal
• Membranes
• Polycarbonate
+
Partner material
B2
B•
2B
Mo
de
l
Material
OPV
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 27
Summary
OPV offers unique features for BIPV
low weight, flexible, easy to integrate
new aesthetics
superior high temperature and low light performance
truly green
real transparency
Heliatek
has established a first small scale production line
is looking for investors for a 100MW line
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 28
Coworkers and People Involved in
Heliatek’s Network
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, K. Leo et al.
BASF SE:
P. Erk et al.
Bosch GmbH:
W. Volz et al.
Novaled AG, Dresden:
A. Werner, J. Blochwitz-Niemoth et al.
FHR Anlagenbau
3D Micromac, Chemnitz
Fraunhofer COMEDD
Fraunhofer IWS
Fraunhofer FEP
Institut für Polymerforschung (IPF), Dresden
Creaphys GmbH, Dresden
7th November 2013 © Heliatek GmbH www.heliatek.com
Acknowledgement
Towards Mass Production of Organic Solar Films 29
Research and development work, as well as the installation of production technology, has been funded by:
The Sächsische Aufbaubank (SAB)
The BMBF (German Secretary for Education and Science)
The BMWi (Federal Ministry of Economics and Technology)
The European Fund for Regional Development (EFRE)
Our investors:
BASF VC
Bosch
RWE Innogy
Wellington Partners
SIB
TGFS
GP Bullhound
BMBF: Contract Nr. 13N9716, 13N9869; SAB: Contract Nr. 71070 (UFOS)/Bewilligung Nr. 4014-7654 (GA)
7th November 2013 © Heliatek GmbH www.heliatek.com Towards Mass Production of Organic Solar Films 30
Heliatek Team
Thank you
for your attention www.heliatek.com
Towards Mass Production of Organic Solar Films 31
Benedikt Gburek, Ph.D.
Development Engineer New Electrodes
Heliatek GmbH
Treidlerstraße 3
01139 Dresden, Germany
T (+49-351) 213 034-477
F (+49-351) 213 034-40
Towards Mass Production of Organic Solar Films 32