mid-term of photonvoltaics welcome! mid-term review – m18 24 april 2014, namur (@unamur)
TRANSCRIPT
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Mid-Term of photoNvoltaicsWelcome!
Mid-term review – M18
24 April 2014, Namur (@UNamur)
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N-type (emitter)P-type (base)
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A brief introduction
confidential
Why photoNvoltaics? Project goals
Who is photoNVoltaics? Complementary partners
How does photoNvoltaics work? WP split
Where is photoNvoltaics? Global work progress
What are we doing today? Agenda of the day
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Wafer-based c-Si solar cell Photonic nanostructure
Thin-film c-Si solar cell
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The main (ambitious) goals
confidential
• Thin c-Si film breaking the Yablonovitch limit
• Is periodic better than random?
Optical demonstration
• Cell with highest Jsc enhancement ever
Cell demonstration
• Integrate nanoscale litho into PV
PV industry
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7 competences required
imec confidential
Supply of thin films
Modelling of advanced photonics structures
Patterning of structures
Controlled etching of Si
Integration into efficient cells
Characterisation of materials and
devices
Opening the way to industry
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nanophotonics for ultra-thin crystalline silicon photovoltaics
This project has received funding from the European Union’s Seventh Programme for research, technological development and demonstration under grant agreement No 309127
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A simple management structure
confidential
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Work split into 5 work packages
confidential
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WP goals
confidential
o Pattern with various techniques o of litho and etcho periodic and non-periodic
o Characterise the patternso Find how to passivate them
WP2
o Model various nanopatterned structures and extract their Jsc
o Give guidelines of optimal structures
o Gather reliable data for modelso Define benchmark structures
WP1
o Fabricate thin c-Si filmso Integrate nanopatterns into solar cells
and reach record Jsc valueso Demonstrate upscalability
WP3o Evaluate industrialiability of
nanopatterningo Evaluate their costs and lifecycleo Disseminate results and protect IP
WP4
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A brief introduction
confidential
Why photoNvoltaics? Project goals
Who is photoNVoltaics? Complementary partners
How does photoNvoltaics work? WP split
Where is photoNvoltaics? Global work progress
What are we doing today? Agenda of the day
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Work plan for record devices
imec confidential
1) Get a “flavour”
2) First optimisation
3) Go for record
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Epi
LIL
Optics
NIL
HCL
Charac
PECVD
Many samples exchanged across Europe
confidential
61 batches of samples so far
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Where are we now?In the eye of the hurricane...
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Where are we now?
confidential
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From milestone to milestone...On track so far
confidential
Milestone number Milestone name WPs involved
Expected date
MS 1
Thin c-Si wafers for testing nanopatterning in WP2 with LHL, HCL and NIL
3 M3 Jan13
MS 2 Internal website for data exchange 5 M3 Jan13
MS 3 Decision on first optically optimised periodic structures for NIL master stamps fabrication (cf. D 1.4)
1 M12 Oct13
MS 4 Decision on experimental fabrication of double-side patterned samples (cf. D 1.6)
1 M18 Apr14
MS 5
Opto-electrical simulation tool established
1 M21 July14today
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Deliverables: Sometimes delayed, mostly on track
confidential
Del. No
Deliverable title WP No Nature Delivery date (projected
month)
Lead beneficiary
Estimated Person-months
D 1.1 Database of optical data for modelling
1 O 3- Jan 13 2b CNRS-LPICM 2.1
D 1.2 Report: Solar cells to be modelled 1 R 3- Jan 13 1 Imec 2
D 1.3 Report: Benchmark structures to be modelled
1 R 3- Jan 13 1 Imec 2
D 5.1 IT tools for internal communication 5 O 3- Jan 13 1 Imec 3
D 4.1 Public website 4 O 3- Jan 13 1 Imec 0.6D 2.1 Report: Experimental boundary
conditions for periodic patterns2 R 10- Aug 13 2a INL 8.3
D 2.2 Report: Experimental boundary
conditions for non-periodic patterns
2 R 12- Oct 13 5 Chalmers 5.3
D 1.4 Report: Model validation for periodic patterns
1 R 12- Oct 13 2a INL 18
D 2.3 Report: Surface passivation methods
2 R 12- Oct 13 1 Imec 15.4
D 3.1 Report: Layer transfer possibilities 3 R 12- Oct 13 2b LPICM 7
D 1.5 Report: Model validation for non-periodic patterns
1 R 17- Mar 14 3 FUNDP 23
D 1.6 Report: Modelled potential of double-side patterning
1 R 18- Apr 14 2a INL 5
D 3.2 Report: First batch of solar cells, non-optimised optically
3 R 18- Apr 14 1 Imec 15
2 months delay... from summer holidays
today
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Morning agenda
confidential
8h30 Welcome breakfast
9h Introduction 30 min Valerie(imec)
9h30 WP1: Modelling & benchmarking 1h15 Jerôme (UNamur)
slides
10h45 Coffee break 20 min
11h05 WP2: Nanopatterning 1h15Christian(CNRS-INL)
slides
12h20 Lunch break > 60 min
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Afternoon agenda
confidential
13h45 WP3: Integration of nanophotonics into thin-film c-Si solar cells
1h15Pere(CNRS-LPICM)
slides
15h Coffee break 20 min
15h20 WP4: Dissemination, Exploitation and Cost Calculation
45 min Patricia (Total)
slides
16h05 WP5: Coordination & Management Wrap up
30 minValérie(imec)
slides
16h35 Coffee break 20 min
~17h Reviewer discussion and feedback 60 minReviewer / EC
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nanophotonics for ultra-thin crystalline silicon photovoltaics
This project has received funding from the European Union’s Seventh Programme for research, technological development and demonstration under grant agreement No 309127